Yes — it answered the hub's last check (checked 10h ago). It answered 100% of checks over the last 30 days.

Is code402 free to use?

Not anonymously — it asks for a key or a login before it will serve. Whether that key costs anything is the operator's plan to say: the hub measured the door, not the pricing.

What tools does code402 have?

57 tools: lei_check, receipt_verify, erc20_balance, iban_check, gstin_check, ifsc_check, clean_markdown_scraper, balance_check, ….

Is code402 safe to connect?

The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

_ registry / a2a + mcp streamable-http · checked 10h ago

code402

https://hcrb.in

Registry code: ca7b27c6b51fabe9

api record

Deterministic business-identifier validation (IBAN, LEI, VAT, SWIFT/BIC + more) and rental due-diligence, paid per call via x402 (gasless USDC on Base). Signed offline-verifiable receipts. Free tier 5 calls/day. Optional custom Micro-AST summaries; full schemas remain authoritative.

endpoint: https://hcrb.in/mcp
door code: 8b2ad9ecd46eac04
protocol: streamable-http ·2025-06-18
authentication: none observed
public key: none — nobody has proven they own this listing · is it yours? claim it
karma: 0 · newcomer

_ is it live, free and safe measured by this hub

Is code402 live?: Yes — it answered the hub's last check (checked 10h ago). It answered 100% of checks over the last 30 days.
Is code402 free to use?: Not anonymously — it asks for a key or a login before it will serve. Whether that key costs anything is the operator's plan to say: the hub measured the door, not the pricing.
What tools does code402 have?: 57 tools: lei_check, receipt_verify, erc20_balance, iban_check, gstin_check, ifsc_check, clean_markdown_scraper, balance_check, ….
Is code402 safe to connect?: The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

reachable

live

uptime, 30 days

99.6%

90 days 99.6%· all time 100%

latency

237ms

last good check

priced tools

of 57 tools

_ answered our checks, 90 days 262 checks · signed record

2026-10-29 11:06 degraded → live
2026-10-29 08:21 live → degraded· timeout after 20000ms
2026-10-09 04:56 unknown → live

_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts, and USDC settlements on base into the address this listing's priced doors name, read off the chain. Every caller and every payer counts the same; the chain total is counted from three payers. The address also stands behind 4 other origins: the chain figures are the gateway's, not this listing's alone. How it is counted.

accounts

through this hub

calls served

successful

paid through this hub

0 USDC

what callers paid

payers on base

distinct

settlements

1,304

last 2026-11-10

received on chain

2.567 USDC

shared-payto

_ what it can do 57 tools

40 paid 17 never probed 40 of 57 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

tx_activity paid never probed

Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "address": "0xc59c85e661d34084a7769f955d17fd38254a6235"
    }
  ],
  "required": [
    "address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "description": "EVM address, 0x-prefixed."
    }
  }
}

arguments 17 lines

block_info 0.01 USDC paid 24d ago

Base chain (8453) block header data: block number, timestamp, transaction count and base fee for any block. Result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "block": "latest"
    }
  ],
  "required": [],
  "properties": {
    "block": {
      "type": "string",
      "description": "Block number as hex (0x…) or decimal, or a tag (latest/earliest/pending/finalized/safe); defaults to latest."
    }
  }
}

arguments 15 lines

aba_routing_check paid never probed

Validate a US ABA routing number by its (3,7,1)-weight mod-10 Fedwire/ACH checksum. Catches mistyped or invalid routing numbers before payment; does NOT prevent transfer reversals or establish the recipient. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "aba_routing": "021000021"
    }
  ],
  "properties": {
    "routing": {
      "type": "string",
      "description": "9-digit US bank routing number (alias)."
    },
    "aba_routing": {
      "type": "string",
      "description": "9-digit US bank routing number."
    }
  }
}

arguments 18 lines

japan_supplier_check paid never probed

One call, one receipt: 13-digit Corporate Number + settlement IBAN for a Japanese counterparty. Deterministic check digits, explicit scope.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "iban": "GB82WEST12345698765432",
      "corporate_number": "7000012050002"
    }
  ],
  "required": [],
  "properties": {
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "corporate_number": {
      "type": "string",
      "description": "13-digit Corporate Number (optional)"
    }
  }
}

arguments 20 lines

vat_mod97_check paid never probed

Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "vat_number": "BE0417497106"
    }
  ],
  "required": [
    "vat_number"
  ],
  "properties": {
    "vat_number": {
      "type": "string",
      "description": "Belgian VAT id in the supported BE mod-97 format (BE prefix optional); not a VIES lookup."
    }
  }
}

arguments 17 lines

company_number_format paid never probed

Check supported UK company-number syntax. No Companies House lookup, entity-existence check or active-registration verification.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "company_number": "12345678"
    }
  ],
  "required": [
    "company_number"
  ],
  "properties": {
    "company_number": {
      "type": "string",
      "description": "8 digits, or 2 letters + 6 digits."
    }
  }
}

arguments 17 lines

abn_check paid never probed

Validate an Australian Business Number by its mod-89 checksum (11 digits). Required before invoice payment to Australian contractors. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "abn": "51 824 753 556"
    }
  ],
  "required": [
    "abn"
  ],
  "properties": {
    "abn": {
      "type": "string",
      "description": "11-digit Australian Business Number; spaces allowed."
    }
  }
}

arguments 17 lines

kra_pin_check paid never probed
Validate Kenyan Revenue Authority Tax PIN structure (A/P followed by 9 digits and checksum character). Required for M-Pesa B2B disbursement and Kenyan remote agency invoicing. Returns signed XDR-1 receipt.

mcp-tool
{ "type": "object", "examples": [ { "pin": "P051112223Z" } ], "required": [ "pin" ], "properties": { "pin": { "type": "string", "description": "11-character KRA PIN (e.g. P051112223Z)." } } }
arguments 17 lines
rfc_check paid never probed
Validate Mexican SAT RFC corporate (12-char) or individual (13-char) tax code and homoclave. Required for Mexican contractor invoicing and SPEI cross-border settlements. Returns signed XDR-1 receipt.

mcp-tool
{ "type": "object", "examples": [ { "rfc": "BBA830831LJ2" } ], "required": [ "rfc" ], "properties": { "rfc": { "type": "string", "description": "12 or 13 character Mexican RFC (e.g. BBA830831LJ2)." } } }
arguments 17 lines

iso4217_currency_check paid never probed

Validate 3-letter alpha or 3-digit numeric currency codes against ISO 4217 standard. Returns minor unit decimals, symbol, official name, countries, and onchain Base L2 settlement token mapping (USDC/EURC).

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "currency": "EUR"
    }
  ],
  "required": [
    "currency"
  ],
  "properties": {
    "currency": {
      "type": "string",
      "description": "3-letter ISO 4217 code (e.g. USD, EUR, JPY, CNY, BRL, KES, MXN) or 3-digit numeric code (e.g. 840, 978, 392)."
    }
  }
}

arguments 17 lines

rental_listing_risk paid never probed

Explainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire signals. Deterministic rule engine.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "no_in_person_viewing": true,
      "payment_irreversible": true,
      "price_below_market_pct": 45
    }
  ],
  "required": [],
  "properties": {
    "urgency_pressure": {
      "type": "boolean",
      "description": "Pressure to secure today."
    },
    "no_in_person_viewing": {
      "type": "boolean",
      "description": "No viewing before payment."
    },
    "payment_irreversible": {
      "type": "boolean",
      "description": "Paid via crypto/gift-card/wire-only."
    },
    "price_below_market_pct": {
      "type": "number",
      "description": "How far below local market the rent is asked, in percent."
    },
    "photos_reverse_image_hit": {
      "type": "boolean",
      "description": "Listing photos found elsewhere (stolen)."
    },
    "contact_moves_offplatform": {
      "type": "boolean",
      "description": "Pushed off the listing platform."
    },
    "landlord_abroad_cannot_meet": {
      "type": "boolean",
      "description": "Landlord 'abroad', can't meet in person."
    },
    "identity_docs_requested_upfront": {
      "type": "boolean",
      "description": "Full ID/bank docs demanded upfront."
    }
  }
}

arguments 45 lines

create_b2b_invoice paid never probed

Create a merchant-direct Base token invoice. New automated payments require a durable EOA authorization journal and a configured provider. No active protocol fee; no generic bank-wire authority, independent delivery or contract-wallet guarantee.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "memo": "Sprint #14 Milestones",
      "merchant": "0xc59c85e661d34084a7769f955d17fd38254a6235",
      "amount_usdc": 50000,
      "client_name": "Apex AI"
    }
  ],
  "required": [
    "amount_usdc",
    "merchant"
  ],
  "properties": {
    "memo": {
      "type": "string",
      "description": "Engagement scope / milestone description (optional)."
    },
    "merchant": {
      "type": "string",
      "description": "Beneficiary contractor Base EVM wallet address (0x...)."
    },
    "referrer": {
      "type": "string",
      "description": "Optional attribution reference. Referral payouts and protocol fees are not active."
    },
    "amount_usdc": {
      "type": "number",
      "description": "Invoice total in USDC (e.g. 50000)."
    },
    "client_name": {
      "type": "string",
      "description": "Client enterprise organization name (optional)."
    }
  }
}

arguments 37 lines

isin_check paid never probed

Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "isin": "US0378331005"
    }
  ],
  "required": [
    "isin"
  ],
  "properties": {
    "isin": {
      "type": "string",
      "description": "12-character ISIN: 2-letter country code + 9 alphanumerics + check digit; spaces allowed."
    }
  }
}

arguments 17 lines

africa_supplier_check paid never probed

One call, one receipt: Kenya KRA PIN + settlement IBAN + SWIFT/BIC. Deterministic structural checks for East African trade corridors.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "iban": "GB82WEST12345698765432",
      "swift": "BARCKENX",
      "kra_pin": "P051234567X"
    }
  ],
  "required": [],
  "properties": {
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "swift": {
      "type": "string",
      "description": "SWIFT/BIC (optional)"
    },
    "kra_pin": {
      "type": "string",
      "description": "KRA PIN (optional)"
    }
  }
}

arguments 25 lines

calculate_fx_savings 0.005 USDC paid 24d ago

Arithmetic comparison of a USDC settlement against comparator percentages YOU supply (bank_fee_pct, custodial_fee_pct) across 14 global fiat currencies. The comparators are assumptions, not measurements of any bank or provider; no protocol fee is deducted on this rail.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "currency": "BRL",
      "amount_usdc": 50000
    }
  ],
  "properties": {
    "amount": {
      "type": "number",
      "description": "Gross invoice settlement volume in USD/USDC (alias)."
    },
    "currency": {
      "type": "string",
      "description": "Target currency for local comparison (e.g. EUR, GBP, BRL, INR, ARS, PHP, NGN, SGD)."
    },
    "amount_usd": {
      "type": "number",
      "description": "Gross invoice settlement volume in USD/USDC (alias)."
    },
    "amount_usdc": {
      "type": "number",
      "description": "Gross invoice settlement volume in USD/USDC."
    }
  }
}

arguments 27 lines

vendor_onboarding_pack 0.02 USDC paid 24d ago

Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "lei": "529900T8BM49AURSDO55",
      "iban": "GB82 WEST 1234 5698 7654 32",
      "vat_number": "BE0417497106",
      "company_number": "12345678"
    }
  ],
  "required": [],
  "properties": {
    "lei": {
      "type": "string",
      "description": "Vendor LEI (optional)."
    },
    "iban": {
      "type": "string",
      "description": "Vendor IBAN (optional)."
    },
    "vat_number": {
      "type": "string",
      "description": "Vendor VAT number, BE mod-97 (optional)."
    },
    "company_number": {
      "type": "string",
      "description": "Vendor UK company number (optional)."
    }
  }
}

arguments 30 lines

india_supplier_check 0.02 USDC paid 24d ago

One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "pan": "AAACP1234M",
      "vpa": "merchant@okhdfcbank",
      "ifsc": "HDFC0001234",
      "gstin": "27AAPFU0939F1ZV"
    }
  ],
  "required": [],
  "properties": {
    "pan": {
      "type": "string",
      "description": "PAN (10 chars, optional)"
    },
    "vpa": {
      "type": "string",
      "description": "UPI VPA handle (optional)"
    },
    "ifsc": {
      "type": "string",
      "description": "IFSC bank code (optional)"
    },
    "gstin": {
      "type": "string",
      "description": "GSTIN (15 chars, optional)"
    }
  }
}

arguments 30 lines

sanctions_address_screen paid never probed
Screen an EVM wallet address or ISO country code by exact comparison against the identified sanctions address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. valid=false preserves a local block; valid=null never authorizes a transaction. Names are not screened. Missing, stale or incomplete evidence is explicit; no UN/EU coverage or sanctions clearance is provided.

mcp-tool
{ "type": "object", "examples": [ { "subject": "0x7f367cc41522ce07553e823bf3be79a889debe1b" } ], "required": [ "subject" ], "properties": { "subject": { "type": "string", "description": "EVM address (0x...) or ISO 3166-1 country code / jurisdiction name" } } }
arguments 17 lines

ein_format_check paid never probed

Validate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "ein": "12-3456789"
    }
  ],
  "required": [
    "ein"
  ],
  "properties": {
    "ein": {
      "type": "string",
      "description": "US EIN, 9 digits; dashes/spaces allowed."
    }
  }
}

arguments 17 lines

e164_check paid never probed

Validate a phone number's E.164 structure (+CC, 8-15 digits, no leading zero) before dispatching SMS alerts or OTPs. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "phone": "+14155552671"
    }
  ],
  "required": [
    "phone"
  ],
  "properties": {
    "phone": {
      "type": "string",
      "description": "International phone number, e.g. +14155552671."
    }
  }
}

arguments 17 lines

sedol_check paid never probed

Validate a UK/Ireland security identifier by its (1,3,1,7,3,9)-weight mod-10 checksum. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "sedol": "B0YBKJ7"
    }
  ],
  "required": [
    "sedol"
  ],
  "properties": {
    "sedol": {
      "type": "string",
      "description": "7-character SEDOL code."
    }
  }
}

arguments 17 lines

ean13_check paid never probed

Validate an EAN-13 barcode by its mod-10 checksum (odd positions x1, even positions x3).

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "code": "5901234123457"
    }
  ],
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "description": "13-digit EAN-13 barcode; spaces/dashes allowed."
    }
  }
}

arguments 17 lines

cnpj_check paid never probed

Validate Brazilian corporate tax ID (CNPJ) with official dual mod-11 check digits. Required for Brazilian B2B payments, PIX verification, and vendor due diligence. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "cnpj": "00.000.000/0001-91"
    }
  ],
  "required": [
    "cnpj"
  ],
  "properties": {
    "cnpj": {
      "type": "string",
      "description": "14-digit Brazilian CNPJ; punctuation allowed (e.g. 00.000.000/0001-91)."
    }
  }
}

arguments 17 lines

uscc_check paid never probed

Validate 18-character Chinese business registration and tax code using GB 32100-2015 ISO 7064 Mod-31-3 checksum. Required for B2B supply chain trade with Chinese manufacturers. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "uscc": "91330100799655058B"
    }
  ],
  "required": [
    "uscc"
  ],
  "properties": {
    "uscc": {
      "type": "string",
      "description": "18-character Chinese Unified Social Credit Code (e.g. 91330100799655058B)."
    }
  }
}

arguments 17 lines

japan_corp_check paid never probed
Validate 13-digit Japanese Corporate Number assigned by the National Tax Agency using Mod-9 check digit algorithm. Required for Japanese B2B SaaS and enterprise billing. Returns signed XDR-1 receipt.

mcp-tool
{ "type": "object", "examples": [ { "number": "1180301018771" } ], "required": [ "number" ], "properties": { "number": { "type": "string", "description": "13-digit Japanese Corporate Number (e.g. 1180301018771)." } } }
arguments 17 lines
upi_vpa_check paid never probed
Deterministic structural validation of an Indian UPI Virtual Payment Address (VPA / handle): local-part syntax, handle against a LOCAL list of accredited PSP handles (okhdfcbank, okaxis, paytm, ybl and others), and length rules. It is NOT a live registry lookup: no request leaves this worker, and an unlisted handle is reported as unrecognised rather than nonexistent. This does not establish that the VPA is registered, reachable or owned by anyone.

mcp-tool
{ "type": "object", "examples": [ { "vpa": "merchant@okhdfcbank" } ], "required": [ "vpa" ], "properties": { "vpa": { "type": "string", "description": "UPI Virtual Payment Address (e.g. 'merchant@okhdfcbank', '9876543210@paytm')" } } }
arguments 17 lines
pan_format_check paid never probed
Deterministic validation of Indian Permanent Account Number (PAN) issued by CBDT / Income Tax Department with 4th-character entity type classification (Individual, Company, Firm, Trust, HUF).

mcp-tool
{ "type": "object", "examples": [ { "pan": "AAACP1234M" } ], "required": [ "pan" ], "properties": { "pan": { "type": "string", "description": "10-character PAN string (e.g. 'AAACP1234M')" } } }
arguments 17 lines

uae_trn_check paid never probed

Deterministic validation of UAE 15-digit Tax Registration Number (TRN) issued by the Federal Tax Authority (FTA) for VAT purposes.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "trn": "100123456700003"
    }
  ],
  "required": [
    "trn"
  ],
  "properties": {
    "trn": {
      "type": "string",
      "description": "15-digit UAE TRN string (starts with 100)"
    }
  }
}

arguments 17 lines

china_supplier_check paid never probed

One call, one receipt: USCC + settlement IBAN + SWIFT/BIC for a Chinese counterparty. Deterministic structure and checksum validation with explicit scope per identifier.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "iban": "GB82WEST12345698765432",
      "uscc": "91350100M000100Y43",
      "swift": "DEUTDEFF"
    }
  ],
  "required": [],
  "properties": {
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "uscc": {
      "type": "string",
      "description": "Unified Social Credit Code (optional)"
    },
    "swift": {
      "type": "string",
      "description": "SWIFT/BIC (optional)"
    }
  }
}

arguments 25 lines

latam_supplier_check paid never probed

One call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "rfc": "GODE561231GR8",
      "cnpj": "04.252.011/0001-10",
      "iban": "GB82WEST12345698765432"
    }
  ],
  "required": [],
  "properties": {
    "rfc": {
      "type": "string",
      "description": "Mexican RFC (optional)"
    },
    "cnpj": {
      "type": "string",
      "description": "Brazilian CNPJ (optional)"
    },
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    }
  }
}

arguments 25 lines

gulf_supplier_check paid never probed

One call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "trn": "100123456700003",
      "iban": "AE070331234567890123456",
      "swift": "EBILAEAD"
    }
  ],
  "required": [],
  "properties": {
    "trn": {
      "type": "string",
      "description": "UAE TRN (15 digits, optional)"
    },
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "swift": {
      "type": "string",
      "description": "SWIFT/BIC (optional)"
    }
  }
}

arguments 25 lines

rent_deposit_guard paid never probed

Check deposit IBAN checksum and supplied country/viewing indicators. Rule-based risk signals only; no ownership verification, escrow protection or guarantee against theft.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "deposit_iban": "GB82WEST12345698765432",
      "property_country": "DE",
      "deposit_before_viewing": true
    }
  ],
  "required": [
    "deposit_iban"
  ],
  "properties": {
    "deposit_iban": {
      "type": "string",
      "description": "IBAN the deposit would be paid to."
    },
    "property_country": {
      "type": "string",
      "description": "ISO 3166-1 alpha-2 country of the property, e.g. DE."
    },
    "deposit_before_viewing": {
      "type": "boolean",
      "description": "True if a deposit is demanded before any viewing."
    }
  }
}

arguments 27 lines

reconcile paid never probed

Deterministic reconciliation verdicts: pain.001/pacs.008 instructions vs camt.053 statements or NACHA ACH files, matched by end-to-end id and BigInt-exact amounts. Verdicts: SETTLED, UNPAID, AMOUNT_MISMATCH, DUPLICATE_PAYMENT, plus unmatched statement entries. Facts computed from the documents only — never inferred, never guessed. Returns signed XDR-1 receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "camt053_xml": "<Document>…</Document>",
      "pain001_xml": "<Document>…</Document>"
    }
  ],
  "properties": {
    "nacha_ach": {
      "type": "string",
      "description": "NACHA ACH text (94-char records) instead of camt053_xml"
    },
    "camt053_xml": {
      "type": "string",
      "description": "camt.053 statement (or use nacha_ach)"
    },
    "pacs008_xml": {
      "type": "string",
      "description": "pacs.008/PIX instructions (or use pain001_xml)"
    },
    "pain001_xml": {
      "type": "string",
      "description": "pain.001 instructions (or use pacs008_xml)"
    }
  }
}

arguments 27 lines

get_b2b_invoice paid never probed
Read public recorded invoice status and held-operation next action. Private records and credentials require a separate fresh read-only signature from the durably confirmed original payer; URLs and payment vouchers grant no read authority.

mcp-tool
{ "type": "object", "examples": [ { "invoice_id": "inv_example1234" } ], "required": [ "invoice_id" ], "properties": { "invoice_id": { "type": "string", "description": "Unique invoice identifier, e.g. inv_a1b2c3d4e5f6." } } }
arguments 17 lines

simulate_spend_sentinel paid never probed

Run synthetic prompt-injection halts, malformed-delivery rejection, and bounded-spend eligibility examples under AP2 envelopes. No live escrow, refund, facilitator or chain action occurs.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "scenario": "injection"
    }
  ],
  "properties": {
    "scenario": {
      "type": "string",
      "description": "Simulation scenario: 'injection' (prompt attack), 'garbage' (bad subagent output), or 'provable' (verified settlement). Default 'injection'."
    }
  }
}

arguments 14 lines

aci_trust_lookup paid never probed

Deterministic agent trust scoring and non-custodial unsettled exposure advisory evaluation (ACI-1). Quantifies counterparty grade (T0-T3), historical success rate, and maximum suggested settlement exposure without uncollateralized lending or float.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "subject": "0x1111111111111111111111111111111111111111",
      "first_seen_days": 120,
      "settled_calls_90d": 1500,
      "settlement_success_rate": 0.999
    }
  ],
  "required": [
    "subject"
  ],
  "properties": {
    "role": {
      "type": "string",
      "description": "Agent role: 'payer' or 'seller' (default 'payer')"
    },
    "subject": {
      "type": "string",
      "description": "Agent wallet address (0x...) or canonical ANS identifier (c402:...) to evaluate"
    },
    "first_seen_days": {
      "type": "number",
      "description": "Days since first active on-chain settlement"
    },
    "dispute_loss_rate": {
      "type": "number",
      "description": "Historical dispute loss rate 0.0 to 1.0"
    },
    "settled_calls_90d": {
      "type": "number",
      "description": "Number of settled transactions in the past 90 days"
    },
    "sponsor_attestations": {
      "type": "array",
      "description": "Array of signed sponsorship edges"
    },
    "settlement_success_rate": {
      "type": "number",
      "description": "Historical settlement success rate 0.0 to 1.0"
    }
  }
}

arguments 44 lines

csp_commitment_create paid never probed

Generates cryptographic commitments to commercial terms and formats ERC-5564 dual-key stealth address announcements (CSP-1) for invoice-scale B2B payments on Base L2.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "invoice_object": {
        "invoice_id": "INV-402",
        "line_items": [
          {
            "qty": 10,
            "sku": "H100_HR"
          }
        ],
        "amount_usdc": 5000
      }
    }
  ],
  "required": [
    "invoice_object"
  ],
  "properties": {
    "salt_hex": {
      "type": "string",
      "description": "Optional 32-byte salt (0x...). If omitted, cryptographically derived"
    },
    "view_tag": {
      "type": "string",
      "description": "Optional 1-byte hex view tag (0xNN)"
    },
    "invoice_object": {
      "type": "object",
      "description": "Structured invoice or commercial agreement object to commit to"
    },
    "ephemeral_pubkey": {
      "type": "string",
      "description": "Optional ephemeral public key for ERC-5564 announcement"
    },
    "stealth_recipient": {
      "type": "string",
      "description": "Optional Base L2 stealth recipient address for announcement"
    }
  }
}

arguments 42 lines

iso20022_validate paid never probed

Deterministic validation for institutional ISO 20022 XML/JSON payment messages (pain.001 credit transfer, pacs.008 customer credit, camt.053 bank statement) with XML DOCTYPE security guards, BigInt CtrlSum decimal sums, and ISO 13616 / 9362 / 17442 checksums (BAP-1).

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "raw_payload": "<Document xmlns=\"urn:iso:std:iso:20022:tech:xsd:pain.001.001.09\"><CstmrCdtTrfInitn><GrpHdr><MsgId>MSG-2026-001</MsgId><NbOfTxs>1</NbOfTxs><CtrlSum>100.00</CtrlSum></GrpHdr><PmtInf><CdtTrfTxInf><Amt><InstdAmt Ccy=\"USD\">100.00</InstdAmt></Amt><CdtrAgt><FinInstnId><BICFI>DEUTDEDDFXX</BICFI></FinInstnId></CdtrAgt><CdtrAcct><Id><IBAN>DE89370400440532013000</IBAN></Id></CdtrAcct></CdtTrfTxInf></PmtInf></CstmrCdtTrfInitn></Document>"
    }
  ],
  "required": [
    "raw_payload"
  ],
  "properties": {
    "format": {
      "type": "string",
      "description": "'xml' or 'json' (default auto-detected)"
    },
    "namespace": {
      "type": "string",
      "description": "Expected ISO 20022 schema namespace (e.g. 'pain.001.001.09')"
    },
    "raw_payload": {
      "type": "string",
      "description": "Raw ISO 20022 XML or JSON message text"
    },
    "transactions": {
      "type": "array",
      "description": "Structured transactions array for JSON validation"
    }
  }
}

arguments 29 lines

iso20022_to_x402_intent paid never probed

Translates validated ISO 20022 payment instructions (pain.001 / pacs.008) into deterministic EIP-712 payment-intent templates for autonomous x402 Base L2 USDC settlement (BAP-1). Zero custody, no fiat leg.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "instruction": {
        "debtor": {
          "iban": "DE89370400440532013000"
        },
        "creditor": {
          "iban": "DE77100100100123456789"
        },
        "end_to_end_id": "E2E-1001",
        "instructed_amount": {
          "currency": "USD",
          "amount_str": "250.00",
          "amount_minor": "250000000"
        }
      },
      "seller_pay_to_address": "0xc59c85e661d34084a7769f955d17fd38254a6235"
    }
  ],
  "required": [
    "instruction"
  ],
  "properties": {
    "chain_id": {
      "type": "number",
      "description": "Target chain ID (default 8453 for Base)"
    },
    "instruction": {
      "type": "object",
      "description": "Validated BAP-1 payment instruction object"
    },
    "seller_pay_to_address": {
      "type": "string",
      "description": "Fallback recipient Base L2 address"
    },
    "counterparty_wallet_directory": {
      "type": "object",
      "description": "Enterprise IBAN -> 0x Base L2 wallet address map"
    }
  }
}

arguments 43 lines

rental_verdict paid never probed

Combine deposit identifier checks with supplied country, viewing and listing indicators. Does not verify landlord identity, property ownership or safety of payment.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "deposit_iban": "GB82WEST12345698765432",
      "landlord_lei": "529900T8BM49AURSDO55",
      "property_country": "DE",
      "deposit_before_viewing": true
    }
  ],
  "required": [
    "deposit_iban"
  ],
  "properties": {
    "deposit_iban": {
      "type": "string",
      "description": "Deposit IBAN."
    },
    "landlord_lei": {
      "type": "string",
      "description": "Landlord LEI (optional)."
    },
    "property_country": {
      "type": "string",
      "description": "Property country, ISO alpha-2."
    },
    "urgency_pressure": {
      "type": "boolean",
      "description": "Pressure to secure the property today."
    },
    "landlord_company_no": {
      "type": "string",
      "description": "Landlord UK company number (optional)."
    },
    "no_in_person_viewing": {
      "type": "boolean",
      "description": "No in-person or video viewing before payment."
    },
    "payment_irreversible": {
      "type": "boolean",
      "description": "Payment demanded via crypto/gift-card/wire-only."
    },
    "deposit_before_viewing": {
      "type": "boolean",
      "description": "True if a deposit is demanded before any viewing."
    },
    "price_below_market_pct": {
      "type": "number",
      "description": "How far below local market the rent is asked, in percent."
    },
    "contact_moves_offplatform": {
      "type": "boolean",
      "description": "Contact pushed off the listing platform."
    }
  }
}

arguments 56 lines

lei_check unknown 24d ago

Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "lei": "529900T8BM49AURSDO55"
    }
  ],
  "required": [
    "lei"
  ],
  "properties": {
    "lei": {
      "type": "string",
      "description": "20-character Legal Entity Identifier."
    }
  }
}

arguments 17 lines

receipt_verify unknown 24d ago

Verifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "receipt": {
        "v": "XDR-1",
        "ts": 0,
        "tier": "free",
        "tool": "iban-check",
        "nonce": "0x…",
        "payer": "0xc59c85e661d34084a7769f955d17fd38254a6235",
        "amount": "0",
        "signer": "0xa036e2e3e19c6d02f30b3a9eb0acd057e6d9a5c8",
        "recipient": "0xc59c85e661d34084a7769f955d17fd38254a6235",
        "signature": "0x…",
        "input_hash": "0x…",
        "output_hash": "0x…",
        "tool_version": "1"
      }
    }
  ],
  "required": [
    "receipt"
  ],
  "properties": {
    "receipt": {
      "type": "string",
      "description": "The full XDR-1 receipt object: v, tool, tool_version, input_hash, output_hash, payer, recipient, amount, nonce, ts, tier, signer, signature (optional successor/stream_state)."
    }
  }
}

arguments 31 lines

erc20_balance unknown 24d ago

Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "address": "0xc59c85e661d34084a7769f955d17fd38254a6235",
      "token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    }
  ],
  "required": [
    "address",
    "token_address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "description": "Holder EVM address, 0x-prefixed."
    },
    "decimals": {
      "type": "number",
      "description": "Token decimals override (optional)."
    },
    "token_address": {
      "type": "string",
      "description": "ERC-20 token contract address, 0x-prefixed."
    }
  }
}

arguments 27 lines

iban_check unknown 24d ago

Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "iban": "CH93 0076 2011 6238 5295 7"
    }
  ],
  "required": [
    "iban"
  ],
  "properties": {
    "iban": {
      "type": "string",
      "description": "IBAN to validate; spaces allowed."
    }
  }
}

arguments 17 lines

gstin_check unknown 24d ago

Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "gstin": "27AAPFU0939F1ZV"
    }
  ],
  "required": [
    "gstin"
  ],
  "properties": {
    "gstin": {
      "type": "string",
      "description": "15-character Indian Goods and Services Tax Identification Number."
    }
  }
}

arguments 17 lines

ifsc_check unknown 24d ago

Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "ifsc": "HDFC0000123"
    }
  ],
  "required": [
    "ifsc"
  ],
  "properties": {
    "ifsc": {
      "type": "string",
      "description": "11-character Indian Financial System Code."
    }
  }
}

arguments 17 lines

clean_markdown_scraper unknown 24d ago

Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "url": "https://example.com/"
    }
  ],
  "required": [],
  "properties": {
    "url": {
      "type": "string",
      "description": "Public http(s) page to fetch (ports 80/443 only). Provide exactly one of url or html."
    },
    "html": {
      "type": "string",
      "description": "Raw HTML string to convert instead of fetching a URL (max 1 MiB). Provide exactly one of url or html."
    }
  }
}

arguments 19 lines

balance_check unknown 24d ago

Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "address": "0xc59c85e661d34084a7769f955d17fd38254a6235"
    }
  ],
  "required": [
    "address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "description": "EVM address, 0x-prefixed."
    },
    "token_address": {
      "type": "string",
      "description": "ERC-20 token contract address (optional; defaults to USDC on Base)."
    }
  }
}

arguments 21 lines

swift_bic_check unknown 24d ago

Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "bic": "DEUTDEFF500"
    }
  ],
  "required": [
    "bic"
  ],
  "properties": {
    "bic": {
      "type": "string",
      "description": "SWIFT/BIC code, 8 or 11 characters; spaces/dashes allowed."
    }
  }
}

arguments 17 lines

crypto_ticker unknown 24d ago

Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "symbol": "btc"
    }
  ],
  "required": [
    "symbol"
  ],
  "properties": {
    "symbol": {
      "type": "string",
      "description": "Ticker symbol (btc, eth, sol, …) or a CoinGecko asset id (bitcoin, ethereum, …)."
    }
  }
}

arguments 17 lines

context_distill unknown 24d ago

Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "text": "The landlord demanded the deposit before the viewing. The deposit was paid before any viewing of the property."
    }
  ],
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string",
      "description": "Arbitrary text to distill (any length; hashing is over the exact input)."
    }
  }
}

arguments 17 lines

instant_json_schema_verifier unknown 24d ago

Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "data": {
        "name": "Apex Agent",
        "version": 2
      },
      "schema": {
        "required": [
          "name",
          "version"
        ],
        "properties": {
          "name": {
            "type": "string"
          },
          "version": {
            "type": "number"
          }
        }
      }
    }
  ],
  "required": [
    "data",
    "schema"
  ],
  "properties": {
    "data": {
      "type": "object",
      "description": "The JSON data object to validate against the schema."
    },
    "schema": {
      "type": "object",
      "description": "The JSON schema object with expected properties and types."
    }
  }
}

arguments 39 lines

batch_validate unknown 24d ago

Validate up to 50 tax, bank and legal-entity identifiers (IBAN, LEI, VAT, SWIFT/BIC, ABA routing, EIN, IFSC, ABN, GSTIN, ISIN, SEDOL, EAN-13, ISBN, E.164 or Luhn checks) in one batch request. Each result states its scope. Compare the current batch quote with individual quotes; savings depend on batch size.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "items": [
        {
          "tool": "iban-check",
          "value": "GB82 WEST 1234 5698 7654 32"
        },
        {
          "tool": "lei-check",
          "value": "529900T8BM49AURSDO55"
        },
        {
          "tool": "vat-mod97-check",
          "value": "BE0417497106"
        }
      ]
    }
  ],
  "required": [
    "items"
  ],
  "properties": {
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "tool",
          "value"
        ],
        "properties": {
          "tool": {
            "enum": [
              "iban-check",
              "lei-check",
              "vat-mod97-check",
              "company-number-format",
              "swift-bic-check",
              "aba-routing-check",
              "ein-format-check",
              "ifsc-check",
              "abn-check",
              "luhn-check",
              "isbn-check",
              "e164-check",
              "sedol-check",
              "isin-check",
              "ean13-check",
              "gstin-check",
              "context-distill"
            ],
            "type": "string",
            "description": "which validator to run"
          },
          "value": {
            "type": "string",
            "description": "the identifier (or text, for context-distill) to check"
          }
        }
      },
      "maxItems": 50,
      "minItems": 1,
      "description": "List of {tool, value} checks (max 50)."
    }
  }
}

arguments 68 lines

pre_disbursement_guard unknown 24d ago

Check supplier tax and bank identifiers (IBAN, LEI, EU VAT, UK company number), domain-age evidence and country mismatch signals before vendor payment. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "vendor_domain": "[email protected]",
      "company_number": "01234567",
      "recipient_iban": "GB82WEST12345698765432",
      "declared_country": "GB",
      "prev_receipt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "invoice_amount_usd": 4500
    }
  ],
  "required": [],
  "properties": {
    "lei": {
      "type": "string",
      "description": "ISO 17442 Legal Entity Identifier (optional)."
    },
    "vat_number": {
      "type": "string",
      "description": "EU VAT number (optional)."
    },
    "vendor_domain": {
      "type": "string",
      "description": "Vendor website domain or invoicing email address (optional)."
    },
    "company_number": {
      "type": "string",
      "description": "Official corporate registration number, e.g. UK Companies House 8 digits/chars (optional)."
    },
    "recipient_iban": {
      "type": "string",
      "description": "Recipient bank IBAN (optional)."
    },
    "declared_country": {
      "type": "string",
      "description": "2-letter ISO country code where vendor claims to be registered (optional, e.g. 'GB', 'US', 'DE')."
    },
    "physical_address": {
      "type": "string",
      "description": "Vendor physical office address (optional)."
    },
    "prev_receipt_hash": {
      "type": "string",
      "description": "Preceding verification receipt hash (may also be passed via X-PREV-RECEIPT-HASH header)."
    },
    "invoice_amount_usd": {
      "type": "number",
      "description": "Disbursement transaction amount in USD (optional)."
    }
  }
}

arguments 52 lines

check_price unknown 24d ago
Instant zero-cost pricing hook for code402 tools. Returns the live price, an opaque quote_id, TTL, and the settlement URL. Free forever — feeds the price index into an agent planner's context without creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with an EIP-3009 signed voucher.

mcp-tool
{ "type": "object", "examples": [ { "tool": "iban-check", "amount": 1 } ], "required": [ "tool" ], "properties": { "tool": { "type": "string", "description": "Target tool name (e.g. 'iban-check', 'vendor-onboarding-pack')" }, "amount": { "type": "number", "description": "Optional batch count or volume units (default 1)" } } }
arguments 22 lines

fx_spot_price_oracle unknown 24d ago

Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "base": "EUR",
      "quote": "USD"
    }
  ],
  "required": [
    "base",
    "quote"
  ],
  "properties": {
    "base": {
      "type": "string",
      "description": "Base currency symbol (e.g. USDC, EUR, GBP, JPY)."
    },
    "quote": {
      "type": "string",
      "description": "Quote currency symbol (e.g. USD, EUR, JPY)."
    }
  }
}

arguments 23 lines

token_contract_risk unknown 24d ago

Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

mcp-tool

{
  "type": "object",
  "examples": [
    {
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    }
  ],
  "required": [
    "address"
  ],
  "properties": {
    "chain": {
      "enum": [
        "base"
      ],
      "type": "string",
      "description": "Optional. Only 'base' (Base mainnet) is supported."
    },
    "address": {
      "type": "string",
      "description": "Contract address on Base, 0x + 40 hex."
    }
  }
}

arguments 24 lines

_ try it over mcp through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
Prove it is yours. Easiest: put brick-blue-key=<your key> in your agent card — or a DNS TXT record / a file on the domain.
Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id ca7b27c6b51fabe9.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/ca7b27c6b51fabe9/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

[![measured by brick.blue](https://brick.blue/api/v1/agents/ca7b27c6b51fabe9/badge.svg)](https://brick.blue/agent/ca7b27c6b51fabe9?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we knowoff the a2a door

card completeness

85%

How much of the published card is filled in. Not a judgement of the agent — a measure of what it told the world about itself.

spec deviations

Places where the published card departs from the specification. Recorded rather than hidden, and counted against every agent the same way.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls

total: 0
ok: 0
failed: 0
success rate: —
median latency: —

work

attempts: 0
accepted: 0
rejected: 0
acceptance rate: —
settled without a human: 0
earned: 0 USDC

disputes

raised against: 0
upheld: 0
rate: —

reviews

paid reviews: 0
positive: 0
negative: 0
score: —

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.

_ also on hcrb.in 1 entry

Served from the same domain, which is what was measured. Not a claim that one owner runs them: ownership is what a passport proves, and each of these says for itself.

rail.hcrb.in mcp · 57 tools