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

freetier-agent-api

https://freetier-agent-api.pages.dev

Registry code: b820ea5f8ccdb039

api record

Free sample tools return data directly. Paid tools return the HTTP request plus x402 payment requirements (USDC on Base); pay with an x402 client to get the result.

endpoint
https://freetier-agent-api.pages.dev/mcp
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 freetier-agent-api live?
Yes — it answered the hub's last check (checked 1h ago). It answered 100% of checks over the last 30 days.
Is freetier-agent-api free to use?
Yes — the hub reached it with no key and no payment.
What tools does freetier-agent-api have?
28 tools: llm_pricing_sample, dataset_full, dump_mcp_servers, dump_x402_services, list_endpoints, mcp_servers_sample, api_directory_sample, dump_llm_pricing, ….
Is freetier-agent-api 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
100%

90 days 100%· all time 100%

latency
31ms

last good check

priced tools
16

of 28 tools

_ answered our checks, 90 days 1 checks · signed record
  • unknown → live
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

_ what it can do 28 tools
16 paid3 open 9 never probed 19 of 28 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.

  • currency 0.002 USDC paid never probed

    Paid ($0.002 USDC via x402). Currency conversion with official ECB euro reference rates (~30 currencies, daily). Params: from, to, amount. Also returns the rate date. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "string"
    },
    "from": {
      "type": "string"
    },
    "amount": {
      "type": "string"
    }
  }
}
    arguments 18 lines
  • extract_json 0.015 USDC paid never probed

    Paid ($0.015 USDC via x402). Messy text + JSON Schema in, clean JSON out. Uses a small LLM (Cloudflare Workers AI, Llama 3.1 8B, JSON mode) when available, else a deterministic key:value/regex extractor; the result is type-checked against your schema and missing fields are null. Limits: text <= 6,000 chars, schema <= 30 top-level properties (flat objects, arrays of scalars); the model can misread ambiguous text, so check important values. Params: text, schema (JSON string), mode=auto|heuristic. GET query or POST JSON body. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "text",
    "schema"
  ],
  "properties": {
    "mode": {
      "enum": [
        "auto",
        "heuristic"
      ],
      "type": "string"
    },
    "text": {
      "type": "string",
      "description": "input text, max 6000 chars"
    },
    "schema": {
      "type": "string",
      "description": "JSON Schema (type object with properties) as a JSON string"
    }
  }
}
    arguments 24 lines
  • free_tiers 0.01 USDC paid never probed

    Paid ($0.01 USDC via x402). Current free-tier limits for developer services (hosting, DB, auth, email, CI, monitoring) and AI/LLM APIs, with official source URLs. Filter: q, category. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {
    "q": {
      "type": "string"
    },
    "category": {
      "type": "string"
    }
  }
}
    arguments 12 lines
  • page_meta 0.02 USDC paid never probed

    Paid ($0.02 USDC via x402). Fetch a public web page (robots.txt respected) and return title, meta description, canonical, Open Graph/Twitter tags, language, headings, link counts, HTTP status. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "absolute http(s) URL"
    }
  }
}
    arguments 12 lines
  • llm_cost 0.01 USDC paid never probed

    Paid ($0.01 USDC via x402). Token & cost calculator: estimate tokens for a text (or pass input_tokens/output_tokens) and price it across several models using provider list prices (LiteLLM price table, MIT). Params: models (comma list of model ids like gpt-4o-mini, claude-sonnet-4-5, gemini/gemini-2.5-flash or search words, max 15), text or input_tokens, output_tokens, calls. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {
    "text": {
      "type": "string"
    },
    "calls": {
      "type": "string"
    },
    "models": {
      "type": "string"
    },
    "input_tokens": {
      "type": "string"
    },
    "output_tokens": {
      "type": "string"
    }
  }
}
    arguments 21 lines
  • mcp_servers 9 USDC paid never probed

    Paid ($0.02 USDC via x402). Search 4,259 MCP (Model Context Protocol) servers by keyword, category, language (python/typescript/go/rust...), scope (cloud/local) and official flag. Returns repo URL and description. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {
    "q": {
      "type": "string"
    },
    "limit": {
      "type": "string"
    },
    "scope": {
      "enum": [
        "cloud",
        "local",
        "embedded"
      ],
      "type": "string"
    },
    "category": {
      "type": "string"
    },
    "language": {
      "type": "string"
    },
    "official": {
      "enum": [
        "yes"
      ],
      "type": "string"
    }
  }
}
    arguments 32 lines
  • robots_check 0.01 USDC paid never probed

    Paid ($0.01 USDC via x402). Check whether a URL may be crawled per the site's robots.txt for a given user-agent. Returns allowed, matched rule, crawl-delay, sitemaps. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "ua": {
      "type": "string",
      "description": "user-agent token, default *"
    },
    "url": {
      "type": "string",
      "description": "absolute http(s) URL"
    }
  }
}
    arguments 16 lines
  • llm_pricing 5 USDC paid never probed

    Paid ($0.02 USDC via x402). AI model list prices (USD per 1M input/output/cached tokens, context window, vision/tools/reasoning flags) for ~3,000 models across OpenAI, Anthropic, Google, Mistral, Groq, Bedrock, Azure, Together, Fireworks and more, plus verified free tiers/rate limits of AI APIs. Filters: q, provider, free=yes, max_input_per_m, min_context, vision=yes, tools=yes, sort=input|output|context, limit<=100. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {
    "q": {
      "type": "string"
    },
    "free": {
      "enum": [
        "yes"
      ],
      "type": "string"
    },
    "sort": {
      "enum": [
        "input",
        "output",
        "context"
      ],
      "type": "string"
    },
    "limit": {
      "type": "string"
    },
    "tools": {
      "enum": [
        "yes"
      ],
      "type": "string"
    },
    "vision": {
      "enum": [
        "yes"
      ],
      "type": "string"
    },
    "provider": {
      "type": "string"
    },
    "min_context": {
      "type": "string"
    },
    "max_input_per_m": {
      "type": "string"
    }
  }
}
    arguments 47 lines
  • page_check 0.03 USDC paid never probed

    Paid ($0.03 USDC via x402). One-call page audit for agents: HTTP status, redirects, latency, title, meta description, canonical, lang, Open Graph, JSON-LD types, headings, word count, plus agent-friendliness: robots.txt rules for 14 AI crawlers, llms.txt, sitemap, and a 0-100 score with reasons. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string"
    }
  }
}
    arguments 11 lines
  • link_check 0.05 USDC paid never probed

    Paid ($0.05 USDC via x402). Check up to 20 URLs in one call: HTTP status, final URL after redirects, redirect count, latency, content-type, ok flag. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "urls"
  ],
  "properties": {
    "urls": {
      "type": "string",
      "description": "comma-separated absolute URLs, max 20"
    }
  }
}
    arguments 12 lines
  • country 0.002 USDC paid never probed

    Paid ($0.002 USDC via x402). Country reference lookup by ISO2/ISO3/name: capital, population, area, continent, currency, phone prefix, TLD, languages, neighbours, time zones with current UTC offset and local time. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "description": "ISO2, ISO3 or country name"
    }
  }
}
    arguments 12 lines
  • holidays 0.002 USDC paid never probed

    Paid ($0.002 USDC via x402). Public holidays for ~490 countries/territories for 2026 and 2027; optional date=YYYY-MM-DD answers is_holiday. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "country"
  ],
  "properties": {
    "date": {
      "type": "string"
    },
    "year": {
      "enum": [
        "2026",
        "2027"
      ],
      "type": "string"
    },
    "country": {
      "type": "string",
      "description": "ISO2"
    }
  }
}
    arguments 22 lines
  • page_markdown 0.03 USDC paid never probed

    Paid ($0.03 USDC via x402). Convert a public web page to clean Markdown (title, headings, paragraphs, lists, links, code), scripts/nav/footer removed, max ~60k chars. robots.txt respected. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string"
    }
  }
}
    arguments 11 lines
  • email_verify 0.005 USDC paid never probed

    Paid ($0.005 USDC via x402). Email address check WITHOUT sending mail or SMTP probing: RFC-style syntax check, domain MX/A records via DNS-over-HTTPS, disposable-domain flag (CC0 blocklist, ~9,900 domains), role-address flag (info@, support@...), free-mail flag. Verdict: deliverable_domain | risky | invalid. Cannot confirm that the mailbox itself exists. Addresses are not stored or logged. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "email"
  ],
  "properties": {
    "email": {
      "type": "string",
      "description": "one email address"
    }
  }
}
    arguments 12 lines
  • agent_tools 7 USDC paid never probed

    Paid ($0.01 USDC via x402). One search across ~13,000 agent tools: 4,259 MCP servers (awesome-mcp-servers, MIT) and ~8,900 x402 pay-per-call APIs (nohumans.directory, CC BY 4.0). Filters: q, type=mcp|x402, limit<=100. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string"
    },
    "type": {
      "enum": [
        "mcp",
        "x402"
      ],
      "type": "string"
    },
    "limit": {
      "type": "string"
    }
  }
}
    arguments 21 lines
  • x402_services 6 USDC paid never probed

    Paid ($0.01 USDC via x402). Search ~8,900 live x402 pay-per-call APIs (verified/unverified by nohumans.directory probes, CC BY 4.0): name, endpoint URL, category, price, chains, status, score. Filters: q, category, chain, max_price, status=verified, limit<=100. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {
    "q": {
      "type": "string"
    },
    "chain": {
      "type": "string"
    },
    "limit": {
      "type": "string"
    },
    "status": {
      "enum": [
        "verified",
        "unverified"
      ],
      "type": "string"
    },
    "category": {
      "type": "string"
    },
    "max_price": {
      "type": "string"
    }
  }
}
    arguments 28 lines
  • base_gas open 1h ago

    Paid ($0.01 USDC via x402). Live Base mainnet gas price (gwei), latest block, and estimated ETH cost of a USDC transfer (~65k gas) and a plain ETH transfer (21k gas). Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {}
}
    arguments 5 lines
  • apis_search open 1h ago

    Paid ($0.01 USDC via x402). Search 2,230 link-checked public & free-tier APIs (59 categories). Filters: q, category, auth=none, alive=yes, https=yes, kind, limit<=50. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {
    "q": {
      "type": "string",
      "description": "free-text search in name/description/category"
    },
    "auth": {
      "type": "string",
      "description": "'none' = no API key"
    },
    "kind": {
      "enum": [
        "public_api",
        "dev_free_tier",
        "ai_api_free_tier"
      ],
      "type": "string"
    },
    "alive": {
      "enum": [
        "yes",
        "no"
      ],
      "type": "string"
    },
    "https": {
      "enum": [
        "yes"
      ],
      "type": "string"
    },
    "limit": {
      "type": "string",
      "description": "1-50, default 10"
    },
    "category": {
      "type": "string"
    }
  }
}
    arguments 42 lines
  • dump_agent_tools open 1h ago

    Paid ($7 USDC via x402). Full dump: Agent Tool Directory, ~13,000 MCP servers + x402 APIs in one unified schema (JSON). MIT + CC BY 4.0 sources, attribution included. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {}
}
    arguments 5 lines
  • llm_pricing_sample unknown never probed

    Free. List prices of five popular LLMs (USD per 1M tokens, LiteLLM table, MIT).

    mcp-tool

    {
  "type": "object",
  "properties": {}
}
    arguments 4 lines
  • dataset_full unknown never probed

    Paid ($8 USDC via x402). Buy the full Verified API Directory dataset (2,230 rows, JSON, CC BY 4.0 + MIT sources) in one call. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {}
}
    arguments 5 lines
  • dump_mcp_servers unknown never probed

    Paid ($9 USDC via x402). Full MCP server directory dump (4,259 servers, JSON). Source awesome-mcp-servers (MIT). Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {}
}
    arguments 5 lines
  • dump_x402_services unknown never probed

    Paid ($6 USDC via x402). Full dump: ~8,900 x402 pay-per-call APIs with category, price, chains and probe status (JSON). Data from nohumans.directory, CC BY 4.0, attribution required. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {}
}
    arguments 5 lines
  • list_endpoints unknown never probed

    Free. List every paid FreeTier Agent API endpoint with price (USDC on Base via x402), description and example query.

    mcp-tool

    {
  "type": "object",
  "properties": {}
}
    arguments 4 lines
  • mcp_servers_sample unknown never probed

    Free. Five sample MCP servers from the 4,259-server directory (MIT source).

    mcp-tool

    {
  "type": "object",
  "properties": {}
}
    arguments 4 lines
  • api_directory_sample unknown never probed

    Free. Five live public APIs that need no key.

    mcp-tool

    {
  "type": "object",
  "properties": {}
}
    arguments 4 lines
  • dump_llm_pricing unknown never probed

    Paid ($5 USDC via x402). Full dump: list prices of ~3,000 AI models (LiteLLM table, MIT) + verified AI/dev free tiers with limits (JSON). Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {}
}
    arguments 5 lines
  • dump_world_reference unknown never probed

    Paid ($6 USDC via x402). Full dump: 252 countries (GeoNames, CC BY 4.0), 418 time zones, ~14,000 public holidays 2026-2027 (python-holidays, MIT). JSON. Calling this tool returns the exact HTTP request and x402 payment requirements; pay with any x402 client to get the data.

    mcp-tool

    {
  "type": "object",
  "required": [],
  "properties": {}
}
    arguments 5 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.

_ 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.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id b820ea5f8ccdb039.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/b820ea5f8ccdb039/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/b820ea5f8ccdb039/badge.svg)](https://brick.blue/agent/b820ea5f8ccdb039?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 know
card completeness
100%

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.