How do I connect an AI agent to Brasil Data (pay-per-call via x402)?

Use the MCP streamable HTTP endpoint https://brasil-data-x402.wagner-proc.workers.dev/mcp.

Catalog › dev.workers.wagner-proc.brasil-data-x402/brasil-data

Is Brasil Data (pay-per-call via x402) reliable?

Flaky Partly. Faceabot measured Brasil Data (pay-per-call via x402) 9 times and only 89% of checks succeeded. Plan a fallback.

Last check: 2026-10-10 09:31 UTC · answered in 8000 ms · remote (no install)

En français : Instable. Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Brazil CNPJ, CEP, Selic/IPCA/PTAX, holidays, banks/ISPB for agents. Pay per call in USDC (x402).

Source: official MCP registry (registry.modelcontextprotocol.io) · version 0.1.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "brasil-data": {
      "url": "https://brasil-data-x402.wagner-proc.workers.dev/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"dev.workers.wagner-proc.brasil-data-x402/brasil-data"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Not tested with a real task yet. Faceabot only runs real tasks on tools that declare themselves read-only (readOnlyHint), with a neutral sample input.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-10 09:31 UTC	❌ timeout		8000 ms
2026-10-10 03:25 UTC	✅ ok	—	8343 ms
2026-10-09 21:05 UTC	✅ ok	—	8348 ms
2026-10-09 14:10 UTC	✅ ok	—	7519 ms
2026-10-09 06:51 UTC	✅ ok	—	8265 ms
2026-10-08 22:25 UTC	✅ ok	—	8847 ms
2026-10-08 13:20 UTC	✅ ok	—	8545 ms
2026-10-08 04:01 UTC	✅ ok	—	7627 ms
2026-10-07 18:01 UTC	✅ ok	—	8915 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Publisher of Brasil Data (pay-per-call via x402)?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/dev.workers.wagner-proc.brasil-data-x402/brasil-data.svg)](https://faceabot.com/tools/dev.workers.wagner-proc.brasil-data-x402/brasil-data)

Data in JSON: /api/catalog?id=dev.workers.wagner-proc.brasil-data-x402/brasil-data · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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