# sefaz_sp_dec_caixa_postal — MCP server on mcp.ai
> SEFAZ SP DEC: Caixa Postal, official-source lookup. Platform-hosted, pay per query with prepaid credit.

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

## Connect (MCP protocol)
Remote MCP endpoint (HTTP, streamable): https://api.mcp.ai/p_sefaz_sp_dec_caixa_postal?ms=1787194260000
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/sefaz_sp_dec_caixa_postal/_endpoints   # public; lists every endpoint
Call:     POST https://api.mcp.ai/api/sefaz_sp_dec_caixa_postal/<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/sefaz_sp_dec_caixa_postal/skill.md
Postman collection (v2.1): https://mcp.ai/sefaz_sp_dec_caixa_postal/postman.json

## Tools
- sefaz_sp_dec_caixa_postal_consultar(pkcs12_cert: string, pkcs12_pass: string, ignora_nao_lidas?: string, cnpj?: string) — SEFAZ SP DEC: Caixa Postal, consulta em fonte oficial. Hospedado pela plataforma, sem credenciais da plataforma, pague por consulta com crédito pré-pago. Consulta informação de fontes e órgãos oficiai

## Example prompts
- "Look up SEFAZ SP DEC: Caixa Postal"

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