Web pages your agent can quote.
Numbered paragraphs, fetch time and fingerprints for a public URL.
25 full fetches, no card
Stripe · 30-day refund · built by Bryan in Cleveland County, NC · bryan@tryneverclosed.com
Tap a paragraph to cite it.
Check it yourself.
Download the exact bytes ProofFetch fingerprinted and run sha256sum. Or edit the hashed text and watch the seal break.
example.com, 577 bytesSame bytes on 10 and 15 Oct 2026
DownloadMCP spec README, todayCaptured 15 Oct 2026, 10:00 UTC
DownloadMCP spec README, Dec 2025GitHub commit 99e7879e
Download$ sha256sum example.com-2026-10-15.html 25ddf2c883e0d1958ea971d279a7e4f0fd446724ee3db7db19dadabd4a62e484 example.com-2026-10-15.html
Hashed text
Changed since it was cited.
The MCP spec README changed on 26 Aug 2026. Older quotes no longer match.
Beforecommit 99e7879e
Today15 Oct 2026
Computed in your browser.
More than Markdown.
Firecrawl, Jina Reader, Exa and Tavily return clean text, and do it well. ProofFetch adds the evidence layer.
Compare what each response carries
| What the response carries | Firecrawl scrape | Jina Reader | Exa contents | Tavily extract | ProofFetch |
|---|---|---|---|---|---|
| Page text, cleaned | Markdown or HTML, plus title, status and source URL | Markdown, with title and URL | Markdown text, highlights or a summary, with title and URL | raw_content text, optionally in chunks of about 800 characters | Numbered paragraphs, title, status, final URL |
| IDs to cite, like [p3] | Not documented | Numbered image captions only | Not documented | Not documented | Yes |
| SHA-256 of the bytes and of the text | Not documented | Not documented | Not documented | Not documented | Both |
| Hidden-instruction check, with the excerpt | Not documented | Not documented | Not documented | Not documented | Yes |
From each product's public docs, checked 15 Oct 2026.
One address in, a quotable page out.
The free check on example.com: numbered paragraph, title, and both fingerprints, with no account and no payment.
What your agent writes.
example.com says it is “for use in documentation examples without needing permission” [p1], fetched 10 Oct 2026 01:45 UTC, content sha256 cbf3f738…85c8.
An example citation written from the real paid response for example.com. Each quote carries its paragraph number, fetch time and fingerprint.
For developers: setup and the raw response
claude mcp add --transport http proof-fetch https://prooffetch.tryneverclosed.com/mcp{
"schema": "proof-fetch-evidence.v1",
"retrievedAt": "2026-10-10T01:45:19.213Z",
"finalUrl": "https://example.com/",
"http": { "status": 200, "contentType": "text/html", "bytes": 577 },
"document": {
"title": "Example Domain",
"paragraphs": [{ "id": "p1", "text": "Example Domain This domain is for use in documentation examples without needing permission. …" }]
},
"integrity": {
"rawSha256": "25ddf2c8…e484",
"contentSha256": "cbf3f738…85c8"
},
"security": { "risk": "low", "indicatorCount": 0, "indicators": [] }
}
The real paid response for example.com, as the live site's example page shows it, shortened where marked with ….
One cent a page.
Start free. A credit is used only when an extraction succeeds.
Property receiptProofFetch
Item 1 · Free
Free key
$0
- 25 full extractions, no card
- One free key per network a month
- Site check: no account, about 1,000 characters
Item 2 · Card pack
500 pages
$5.00 once
- One key for Claude and your own code
- Up to 50,000 characters a page
- Unused credits refundable for 30 days
Item 3 · Pay as you go
50 pages
$0.50 per payment
- Your agent pays at its first call, through Stripe
- No account
- Includes a key for 49 more
Card payments by Stripe. Keys are shown once; store them like a password.
Who answers
Bryan, in Cleveland County, NC: bryan@tryneverclosed.com. We reply within one business day.
Refunds
Ask within 30 days and unused credits are refunded in full. Duplicate or faulty charges are refunded too.
Nothing to cancel
Packs are paid once and never renew. Failed fetches never use a credit.
Operated by Neverclosed (tryneverclosed.com). Card payments are processed by Stripe and appear as Living Stack, the merchant account Neverclosed operates.