# cadin_sp — MCP server on mcp.ai
> Status of a CPF or CNPJ in the São Paulo treasury default registry (CADIN). Platform-hosted, no credentials, pay per query with prepaid credit.

By: mcp.ai · official
Page: https://mcp.ai/cadin_sp

## Connect (MCP protocol)
Remote MCP endpoint (HTTP, streamable): https://api.mcp.ai/p_cadin_sp?ms=1787191800000
Add it as a custom/remote MCP connector, then authenticate when prompted.

## REST API (no MCP client required)
Every tool is also a REST endpoint, authed with a workspace API key.
Discover: GET https://api.mcp.ai/api/cadin_sp/_endpoints   # public; lists every endpoint
Call:     POST https://api.mcp.ai/api/cadin_sp/<endpoint>
  Authorization: Bearer sk_live_…   # create one at https://mcp.ai/settings/api-keys
  Content-Type: application/json
  Body: { …args }   →   { "ok": true, "tool": "<id>", "result": { … } }

## Developer docs
How to use (MCP or REST), markdown: https://mcp.ai/cadin_sp/skill.md
Postman collection (v2.1): https://mcp.ai/cadin_sp/postman.json

## Tools
- cadin_sp_consultar(Cpf: string, Cnpj: string, completo?: boolean) — Situação de um CPF ou CNPJ no Cadastro Informativo de Inadimplência (CADIN) da Secretaria da Fazenda de São Paulo. Hospedado pela plataforma, sem credenciais, pague por consulta com crédito pré-pago. 

## Example prompts
- "Is CNPJ 12345678000190 in the São Paulo CADIN?"
- "CADIN SP status for CPF 12345678909"

## Links
Docs: https://mcp.ai/docs/mcps/cadin_sp
Website: https://mcp.ai/mcps/cadin_sp