CPFHub.io - API de Consulta de CPF
Description
CPFHub.io is a Brazilian CPF lookup and validation API built for developers. This MCP server lets AI agents query CPF data — including full name, gender, and date of birth — directly from a conversation, without writing any HTTP code. ## Available tools - **`lookup_cpf`** — Query a Brazilian CPF number. Returns full name, gender, and date of birth. - **`get_quota_info`** — Check your current credit balance and plan details. ## Key specs - ~300ms average response time · 99.9% uptime - LGPD-compliant · 10M+ CPFs queried · 1,300+ active companies - Works with Claude, Cursor, Windsurf, and any MCP-compatible agent - Same quota as the REST API — no separate credit pool ## Common use cases KYC & identity verification · fraud prevention · customer onboarding · fintech · e-commerce · healthcare · betting & iGaming · ERP/MRP integration ## Plans - **Free:** 50 queries/month — no credit card required - **Pro:** R$149/month for 1,000 queries (R$0.15 per extra query) - **Enterprise:** cust
What our measurements say
CPFHub.io - API de Consulta de CPF is a remote MCP server published at api.cpfhub.io. It has been probed 7 times since 9/10/2026. It answered in 7 of them (100.0%), a near-uninterrupted record. Median response time is 676 ms, a delay an agent will notice. It offers a narrow, focused set of 2 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names directly indicate their purpose (e.g., 'lookup_cpf' for CPF data queries).
- Descriptions briefly explain core functionality and authentication requirements.
Weaknesses
- No input schema details provided for parameters (e.g., required fields, data types).
- Error handling, rate limits, or API key validation constraints are not documented.
- Descriptions lack context on when to use each tool (e.g., 'lookup_cpf' vs. 'get_quota_info').
lookup_cpf— No input schema details for CPF number parameter or API key authentication.get_quota_info— No input schema details for API key authentication.
Verdict
Event narrative
Risk: medium
- 2026-09-10T21:16:35.016Z — era changed from 'auth-gated' to 'legacy' · indicates system reclassification affecting access controls
- 2026-09-11T01:59:45.474Z — complianceScore increased from null to 100 · shows regulatory compliance achievement confirmation
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 284ms → warm 288ms (penalty 0ms)
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Server build: — → 1.0.0
- Supported versions: — → 2025-11-25
- Era changed: Auth-gated → Legacy
- Added to watch — era: Auth-gated
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