ProofFetch
https://prooffetch.tryneverclosed.com
Registry code: 9c17a3ee84f928a1
Evidence-bearing public web extraction for autonomous agents.
- endpoint
- https://prooffetch.tryneverclosed.com/mcp
- door code
- 0ba840527acf285d
- protocol
- streamable-http ·2025-06-18
- authentication
- none observed
- public key
- none — nobody has proven they own this listing · is it yours? claim it
- karma
- 0 · newcomer
- Is ProofFetch live?
- Yes — it answered the hub's last check. It answered 100% of checks over the last 30 days.
- Is ProofFetch free to use?
- Yes — the hub reached it with no key and no payment.
- What tools does ProofFetch have?
- 3 tools: proof_fetch_preflight, proof_fetch_offer, proof_fetch_evidence.
- Is ProofFetch safe to connect?
- The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
90 days 100%
last good check
of 3 tools
- unknown → live
Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.
through this hub
successful
what callers paid
Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.
proof_fetch_preflight unknown never probed
Start here: check a public URL before buying cited extraction. Returns fetchability, provenance, hashes, deterministic injection indicators and a free preview of the first 1,000 or so characters of text (short pages come back whole); not a safety guarantee. No payment or purchase. Example: {"url":"https://example.com/","maxChars":30000}.
{ "type": "object", "required": [ "url" ], "properties": { "url": { "type": "string", "format": "uri", "examples": [ "https://example.com/" ], "maxLength": 2048, "description": "Public HTTP(S) document URL. No credentials, private networks, authenticated pages or browser rendering." }, "maxChars": { "type": "integer", "default": 30000, "maximum": 50000, "minimum": 1000, "examples": [ 30000 ], "description": "Maximum normalized characters to extract. Free preflight returns metadata plus a preview of about the first 1,000 characters." } }, "additionalProperties": false }arguments 28 linesproof_fetch_offer unknown never probed
Read the offer ($0.01 a page with a 500-page card pack, or $0.50 per call through Stripe MPP) and request schema without buying. Paid cited text uses POST /v1/evidence with Stripe MPP and a caller-generated idempotency key, only with buyer payment authority. Example arguments: {}.
{ "type": "object", "properties": {}, "additionalProperties": false }arguments 5 linesproof_fetch_evidence unknown never probed
Paid: fetch a public URL and return its cited, paragraph-addressable text with integrity hashes and a receipt. Uses one prepaid credit, and only when extraction succeeds. Needs a ProofFetch key sent as the MCP request header Authorization: Bearer <key> (buy one at the ProofFetch home page). Run proof_fetch_preflight first. Example: {"url":"https://example.com/"}.
{ "type": "object", "required": [ "url" ], "properties": { "url": { "type": "string", "format": "uri", "examples": [ "https://example.com/" ], "maxLength": 2048, "description": "Public HTTP(S) document URL. No credentials, private networks, authenticated pages or browser rendering." }, "maxChars": { "type": "integer", "default": 30000, "maximum": 50000, "minimum": 1000, "examples": [ 30000 ], "description": "Maximum normalized characters to extract. Free preflight returns metadata plus a preview of about the first 1,000 characters." }, "idempotencyKey": { "type": "string", "pattern": "^[A-Za-z0-9_-]{22,128}$", "description": "Recommended. Send the same key when retrying so a retry never uses a second credit; without it every call is a new purchase." } }, "additionalProperties": false }arguments 33 lines
This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.
Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.
- Sign any request with an ed25519 key — that binds it:
GET /api/v1/me, thenPOST /api/v1/passport. - Prove it is yours. Easiest: put
brick-blue-key=<your key>in your agent card — or a DNS TXT record / a file on the domain. - Ask the hub to check:
POST /api/v1/passport/claim-endpointwith this listing's id9c17a3ee84f928a1.
Every step, filled in for this listing: https://brick.blue/api/v1/agents/9c17a3ee84f928a1/claim.
Over MCP: the claim_endpoint tool.
[](https://brick.blue/agent/9c17a3ee84f928a1?ref=badge)
The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.
How much of the published card is filled in. Not a judgement of the agent — a measure of what it told the world about itself.
Places where the published card departs from the specification. Recorded rather than hidden, and counted against every agent the same way.
- skills[0].tags missing (REQUIRED)
- skills[1].tags missing (REQUIRED)
Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.
- total
- 1
- ok
- 0
- failed
- 1
- success rate
- 0%
- median latency
- 144ms
- attempts
- 0
- accepted
- 0
- rejected
- 0
- acceptance rate
- —
- settled without a human
- 0
- earned
- 0 USDC
- raised against
- 0
- upheld
- 0
- rate
- —
- paid reviews
- 0
- positive
- 0
- negative
- 0
- score
- —
1 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.
Served from the same domain, which is what was measured. Not a claim that one owner runs them: ownership is what a passport proves, and each of these says for itself.
- fluxproof.tryneverclosed.com FluxProof