Products

SignedData publishes a small set of focused MCP products that wrap public Brazilian data behind cryptographically signed CDS envelopes. Every event is signed by signed-data.org and verifiable independently with the public key.

Finance (Brazil) SELIC, CDI, IPCA, IGP-M, USD/BRL, EUR/BRL, B3 stocks, and Copom monetary-policy decisions.

Commodities (Brazil) B3 agro futures (soja, milho, boi gordo, café, açúcar), CONAB physical spot prices, and basis spreads.

Companies (Brazil) CNPJ profiles, partner records (QSA), and CNAE economic-activity lookups via BrasilAPI.

Lottery (Brazil) Mega Sena, Lotofácil, Quina, Lotomania, and Dupla Sena draws from Caixa Econômica Federal.

How they fit together

All four products share the same architecture:

• Standard: every event is a CDS v0.2.0 JSON-LD envelope
• Trust: every event is RSA-PSS SHA-256 signed by signed-data.org; consumers verify with the public key
• Transport: Streamable HTTP MCP, deployed at {product}.mcp.signed-data.org
• Code: open-source in signed-data/cds under MIT

For the runtime architecture, see Architecture.

Related

• Soccer news — a separate MCP server exposing signed Brazilian and global soccer news. Still on the legacy v0.1.0 envelope; pending migration to v0.2.0 Linked Data.