All servers operational

Cryptographically Signed Data
for AI Agents

MCP servers delivering verifiable Brazilian financial, commodity, and company data. Every payload signed at the source — your agents get facts, not guesses.

100 free requests/day
No credit card required
MCP standard
Why SignedData

Data your agents can trust

HTTPS secures the channel. We anchor the payload. Every CDS event is a self-contained proof of what was published, by whom, and when.

Cryptographically Signed

Every data point carries an RSA-PSS signature proving exactly who published it and when. No trust assumptions beyond the cryptographic proof.

Real-Time Updates

Scheduled ingestors fetch fresh data from Banco Central, B3, CONAB, and Receita Federal. Daily rates, weekly commodities, live quotes.

LLM-Ready Summaries

Each event includes a structured summary so data and meaning travel together. AI agents understand context without extra prompting.

Verified Sources

All data sources are registered and fingerprinted in the CDS source registry. No unverified scraping — curated, structured, auditable.

MCP Servers

Three domains, one standard

Each server exposes MCP tools that return cryptographically signed data. Connect with any MCP-compatible AI agent.

9 tools

Finance Brazil

https://finance.mcp.signed-data.org

Real-time Brazilian financial data from Banco Central, B3 stock exchange, and COPOM monetary policy decisions. All data cryptographically signed at the source.

  • get_selic_rateCurrent SELIC overnight rate
  • get_ipcaIPCA consumer price index
  • get_igpmIGP-M general price index
  • get_usd_brlPTAX USD/BRL exchange rate
  • get_fx_ratesMulti-currency FX rates
  • get_stock_quoteB3 real-time stock quotes
  • get_market_summaryDaily market snapshot
  • get_copom_historyCOPOM monetary policy decisions
  • get_copom_latestMost recent COPOM decision
7 tools

Commodities Brazil

https://commodities.mcp.signed-data.org

B3 agricultural commodity futures and CONAB physical crop prices. Covers soy, corn, cattle, coffee, sugar, and ethanol with basis spread calculations.

  • get_soja_futuresSoybean B3 futures contracts
  • get_all_agro_futuresAll 6 commodity futures
  • get_futures_by_commoditySingle commodity futures
  • get_soja_spot_pricesPhysical soybean prices by state
  • get_spot_by_commodityPhysical prices by commodity
  • get_commodity_summaryFutures + spot comparison
  • get_basisBasis spread (spot vs. futures)
6 tools

Companies Brazil

https://companies.mcp.signed-data.org

Brazilian company registration data from Receita Federal. Look up company profiles, partners, CNAE codes, and validate CNPJ numbers in batch.

  • get_company_profileFull company profile by CNPJ
  • get_company_partnersPartner/shareholder data
  • check_company_statusRegistration status check
  • validate_cnpjCNPJ check-digit validation
  • get_cnae_infoEconomic activity code lookup
  • batch_company_lookupLook up up to 10 companies
Integration

Three steps to verified data

01

Choose a Plan

Start free with 100 requests/day or upgrade for full access to all three MCP servers.

02

Get Your API Token

Create an API token in your dashboard. Select which servers your token can access.

03

Connect Your Agent

Add the MCP server URL to your AI agent config. Start querying signed data immediately.

claude_desktop_config.json
{
  "mcpServers": {
    "signeddata-finance": {
      "url": "https://finance.mcp.signed-data.org",
      "headers": {
        "Authorization": "Bearer sd_live_..."
      }
    }
  }
}
Pricing

Simple, transparent pricing

Start free. Scale when you need to.

Starter

Free
  • 100 requests per day
  • 1 MCP server
  • 1 API token
  • Community support
  • Standard latency
Most Popular

Pro

$49/month
  • 10,000 requests per day
  • All 3 MCP servers
  • 5 API tokens
  • Email support
  • Signed data verification
  • Priority latency

Enterprise

$199/month
  • Unlimited requests
  • All 3 MCP servers
  • Unlimited API tokens
  • Dedicated support
  • Signed data verification
  • 99.9% SLA guarantee
  • Custom integrations
See full feature comparison→
FAQ

Frequently asked questions

MCP (Model Context Protocol) is an open standard for connecting AI agents to external data sources and tools. Our MCP servers expose tools that your agent can call to retrieve real-time, signed Brazilian data.

Every data payload we deliver is signed with RSA-PSS using our private key. You can verify the signature with our public key to prove the data was published by SignedData and has not been tampered with — no trust assumptions beyond the math.

Any MCP-compatible agent works out of the box — Claude Desktop, Cursor, VS Code with Copilot, and custom agents built with the MCP SDK. The servers use standard streamable HTTP transport.

Yes. Upgrade, downgrade, or cancel at any time. Changes take effect at the start of your next billing period. The Starter plan is free forever with no commitment.

Finance data comes from Banco Central do Brasil (SGS API) and B3 stock exchange. Commodity prices from B3 futures and CONAB (physical crop prices). Company data from Receita Federal via BrasilAPI. All sources are government or official exchange data.

Requests beyond your daily limit receive a 429 status code. The counter resets at midnight UTC. Enterprise plans have no limits.

Start building with verified data today

Connect your AI agents to cryptographically signed Brazilian data. Free tier available — no credit card required.