Gov-BR (Brazil)

Signed Brazilian government transparency data from Portal da Transparência. Query federal sanction registries (CEIS and CNEP) by CNPJ to verify vendor legitimacy and compliance status. All results are cryptographically signed and timestamped by signed-data.org.

Endpoint: https://gov-br.mcp.signed-data.org/mcp Domain spec: government.brazil

Quick start

Add to your Claude Desktop config (~/.config/claude/claude_desktop_config.json):

{
  "mcpServers": {
    "signeddata-gov-br": {
      "url": "https://gov-br.mcp.signed-data.org/mcp"
    }
  }
}

Or test via curl:

curl -X POST https://gov-br.mcp.signed-data.org/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

Requires a free Portal da Transparência API token:

# Get a free token at:
# https://portaldatransparencia.gov.br/api-de-dados/cadastrar-email

pip install signeddata-cds
pip install signeddata-mcp-gov-br

Then in ~/.config/claude/claude_desktop_config.json:

{
  "mcpServers": {
    "signeddata-gov-br": {
      "command": "signeddata-mcp-gov-br",
      "env": {
        "PORTAL_TRANSPARENCIA_TOKEN": "your-free-api-token",
        "CDS_PRIVATE_KEY_PATH": "/path/to/keys/private.pem",
        "CDS_PUBLIC_KEY_PATH":  "/path/to/keys/public.pem",
        "CDS_ISSUER":           "signed-data.org"
      }
    }
  }
}

git clone https://github.com/signed-data/cds.git && cd cds
pip install -e sdk/python
pip install -e mcp/gov-br
PORTAL_TRANSPARENCIA_TOKEN=your-token signeddata-mcp-gov-br

Tools

Tool	Description
`check_sanctions`	Query federal sanction status (CEIS + CNEP) by CNPJ

Resources

URI	Description
`gov-br://sanctions/{cnpj}`	Sanction lookup result as JSON

Data sources

Source	URL	Auth
Portal da Transparência (CGU)	`portaldatransparencia.gov.br/api-de-dados`	Free token (email registration)
CEIS Registry	Official federal suspension/disqualification list	Via Portal
CNEP Registry	Anti-Corruption Law (Lei 12.846/2013) penalties	Via Portal

Environment variables

Variable	Description	Default
`PORTAL_TRANSPARENCIA_TOKEN`	API token for Portal da Transparência	(required for hosted use)
`CDS_PRIVATE_KEY_PATH`	Path to RSA private key for signing	(unsigned if not set)
`CDS_PUBLIC_KEY_PATH`	Path to RSA public key for verification	(skip verification)
`CDS_ISSUER`	Issuer URI in signed events	`signed-data.org`