# ProofFetch

Evidence-bearing public web extraction for autonomous agents.

- Connect your agent: https://prooffetch.tryneverclosed.com/connect
- Free preflight: POST https://prooffetch.tryneverclosed.com/v1/preflight (or GET https://prooffetch.tryneverclosed.com/v1/preflight?url=https://example.com/)
- Paid cited evidence: POST https://prooffetch.tryneverclosed.com/v1/evidence ($0.50 per call through Stripe MPP card/SPT, or $0.01 a page with a 500-page card pack for $5.00)
- OpenAPI discovery: https://prooffetch.tryneverclosed.com/openapi.json
- MCP: POST https://prooffetch.tryneverclosed.com/mcp
- A2A card: https://prooffetch.tryneverclosed.com/.well-known/agent-card.json
- Support case intake: POST https://prooffetch.tryneverclosed.com/v1/support (non-sensitive technical/payment issues only)
- Status: available

Free request JSON: {"url":"https://example.com","maxChars":30000}
Paid request JSON: {"url":"https://example.com","maxChars":30000,"idempotencyKey":"<22+ random URL-safe characters>"}

The free response contains metadata, hashes, risk indicators and a text preview of about the first 1,000 characters (preview.complete is true when that is the whole page). Paid output adds every paragraph, content text, and a payment receipt. A high-entropy idempotency key enables recovery without a second charge. Support cases return a one-time access token; retain it and do not send secrets or personal contact details. Public resources only; no cookies, credentials, browser actions, or private networks. Risk indicators are warnings, not a safety guarantee. Every error response has a stable error code plus a plain-language message saying what to fix.

No MPP wallet? Buy 500 extractions for $5.00 ($0.01 a page) with a card at https://prooffetch.tryneverclosed.com/#buy. Send the key as Authorization: Bearer <key> to POST https://prooffetch.tryneverclosed.com/v1/evidence, or as an MCP request header to unlock the proof_fetch_evidence tool. Balance: GET https://prooffetch.tryneverclosed.com/v1/credits.