Sivut X402 Public Data MCP Server

Sivut x402 Public Data APIs

Live Base USDC x402 endpoints for public SEC crypto filing radar, SEC filing markdown, public web-page extraction, and x402 seller intelligence.

• Base URL: https://pay.sivut.co
• Health: https://pay.sivut.co/health
• OpenAPI: https://pay.sivut.co/openapi.json
• Agent instructions: https://pay.sivut.co/llms.txt
• Discovery JSON: https://pay.sivut.co/.well-known/agent.json
• MCP discovery: https://pay.sivut.co/mcp
• Payment: x402, USDC on Base mainnet
• Payout address: 0x9d39802b6B65D360bFdA92c8221dB3EbA8cbF9D7

The origin is registered on x402scan and discoverable through AgentCash. AgentCash resolves the SEC buyer-pack endpoint as a paid x402 route with fixed 10.00 USD pricing settled in Base USDC.

Primary Paid Products

Free Validation

curl "https://pay.sivut.co/api/public-data/sec-crypto-filings/sample?limit=3"
curl "https://pay.sivut.co/openapi.json"
curl "https://pay.sivut.co/llms.txt"

Paid Probe

curl -i "https://pay.sivut.co/api/public-data/sec-crypto-filings/buyer-pack?limit=25"

Expected unpaid response: HTTP 402 Payment Required with Base USDC x402 payment requirements. x402-aware clients can pay and retry automatically.

MCP / Cline Install

The service also exposes a free Streamable HTTP MCP wrapper for discovery and sample calls. It returns a current SEC sample plus paid x402 URLs for the full feed, CSV snapshot, filing markdown, and buyer pack.

{
  "mcpServers": {
    "sivut-sec-crypto-filing-radar": {
      "url": "https://pay.sivut.co/mcp"
    }
  }
}

Smoke-tested on 2026-06-09 UTC:

curl -X POST "https://pay.sivut.co/mcp" \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

The MCP tools are sec_crypto_filings_sample, sec_crypto_filings_paid_urls, and x402_paid_resources.

Data Boundaries

The service uses public data only. Public web fetch endpoints reject localhost, private network targets, credentialed URLs, and account-gated sources.

Current Status

Production endpoint is live at https://pay.sivut.co. Health checks return public operational metadata only.