_ registry / mcp http-sse · checked 1h ago

fabtally-decode

https://decode.fabtally.com

Registry code: 943f471d34604cf1

api record

Decode EVM bytes to JSON: event-log decoder, calldata explainer, selector lookup, ABI fetch.

from a public catalogue that lists it, not from the operator

endpoint
https://decode.fabtally.com/mcp
protocol
http-sse ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing
karma
0 · newcomer
reachable
live
uptime, 30 days
100%

90 days 100%· all time 100%

latency
76ms

last good check

priced tools
0

of 4 tools

_ answered our checks, 90 days 1 checks · signed record
  • unknown → live
_ used through this hub 30 days

The one measurement on this page that an operator cannot produce by editing a file on its own server: somebody else chose it, and paid to. Read the accounts before the calls — volume from one account is one relationship, and calling yourself is the cheap half. Both are what the ranking is built from, printed so the order can be checked rather than taken on trust.

accounts
0

distinct, expensive to fake

calls served
0

successful, last 30 days

_ what it can do 4 tools
4 never probed 0 of 4 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.

  • decode_log unknown never probed

    PAID $0.003 (x402, USDC on Base). FLAGSHIP: decode EVM event LOGS to human-readable JSON. Give {chain, tx_hash} to decode every log in a transaction, OR {chain, address, topics[], data} for a single log; optional {abi}. Returns each event's name, canonical signature and named/typed args — correctly handling tuple/array/nested params, anonymous events, and indexed vs non-indexed. Resolves the ABI via Sourcify/Blockscout + 4byte event signatures when none is supplied. Without payment returns the x402 challenge; pass x_payment to settle.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "chain"
  ],
  "properties": {
    "abi": {
      "anyOf": [
        {
          "type": "array"
        },
        {
          "type": "string"
        }
      ],
      "description": "Optional contract ABI (JSON array or JSON string). If omitted, the ABI is resolved from the verified source (Sourcify/Blockscout) or 4byte.directory."
    },
    "data": {
      "type": "string",
      "description": "Log data field (0x hex) holding the non-indexed args."
    },
    "chain": {
      "enum": [
        "ethereum",
        "base",
        "arbitrum",
        "optimism",
        "polygon",
        "bsc"
      ],
      "type": "string",
      "description": "EVM chain: ethereum | base | arbitrum | optimism | polygon | bsc."
    },
    "topics": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Log topics array (topic0 is the event signature hash for non-anonymous events)."
    },
    "address": {
      "type": "string",
      "description": "Contract address of a single log (used with topics + data)."
    },
    "tx_hash": {
      "type": "string",
      "description": "Transaction hash (0x + 64 hex) — decodes every event log in the tx."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID decode. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "additionalProperties": false
}
    arguments 56 lines
  • decode_calldata unknown never probed

    PAID $0.002 (x402, USDC on Base). Decode a contract function call. Give {chain, to?, data, abi?}; get the 4-byte selector resolved to a function signature (via provided ABI, the verified contract source, or 4byte.directory) plus fully decoded, typed arguments (tuples/arrays/nested included). Without payment returns the x402 challenge.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "chain",
    "data"
  ],
  "properties": {
    "to": {
      "type": "string",
      "description": "Contract address the call targets (optional; enables verified-ABI resolution)."
    },
    "abi": {
      "anyOf": [
        {
          "type": "array"
        },
        {
          "type": "string"
        }
      ],
      "description": "Optional contract ABI (JSON array or JSON string). If omitted, the ABI is resolved from the verified source (Sourcify/Blockscout) or 4byte.directory."
    },
    "data": {
      "type": "string",
      "description": "Calldata (0x hex, at least the 4-byte selector)."
    },
    "chain": {
      "enum": [
        "ethereum",
        "base",
        "arbitrum",
        "optimism",
        "polygon",
        "bsc"
      ],
      "type": "string",
      "description": "EVM chain: ethereum | base | arbitrum | optimism | polygon | bsc."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID decode. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "additionalProperties": false
}
    arguments 46 lines
  • selector_lookup unknown never probed

    PAID $0.001 (x402, USDC on Base). Resolve a 4-byte function selector (0x + 8 hex) OR a 32-byte event topic hash (0x + 64 hex) to its human-readable signature(s) via 4byte.directory + openchain.xyz. Returns all matches (selectors can collide) with a verified flag. Without payment returns the x402 challenge; pass x_payment to settle.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "selector"
  ],
  "properties": {
    "selector": {
      "type": "string",
      "description": "A 4-byte function selector (0x + 8 hex) or a 32-byte event topic hash (0x + 64 hex)."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID decode. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "additionalProperties": false
}
    arguments 18 lines
  • abi_fetch unknown never probed

    PAID $0.002 (x402, USDC on Base). Fetch the verified ABI + metadata for a contract. Give {address, chain}; get the ABI JSON, verification status/source (Sourcify or Blockscout), the callable function/event signatures, and full proxy-implementation resolution (EIP-1967/1822/OZ-legacy/beacon) — returning the implementation's ABI when it's a proxy. Without payment returns the x402 challenge; pass x_payment to settle.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "chain",
    "address"
  ],
  "properties": {
    "chain": {
      "enum": [
        "ethereum",
        "base",
        "arbitrum",
        "optimism",
        "polygon",
        "bsc"
      ],
      "type": "string",
      "description": "EVM chain: ethereum | base | arbitrum | optimism | polygon | bsc."
    },
    "address": {
      "type": "string",
      "description": "Contract address (0x + 40 hex)."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID decode. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "additionalProperties": false
}
    arguments 31 lines
_ try it 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.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/943f471d34604cf1/badge.svg)](https://brick.blue/agent/943f471d34604cf1)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Own the domain? Prove it and the listing carries a verified badge here too: passport.

_ how we know
card completeness
80%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ 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 fabtally.com 6 entries

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.