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.