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ProofFetch

by equinoxaifinance-rgb · remote · no sign-in to list tools · v0.3.0 · published by GitHub user equinoxaifinance-rgb

Cited web text extraction for agents: 25 free extractions per key, then 500 for $5.00 via Stripe.

Changes · 1
CompareRegistry entry

3 tools: 1 change things and 2 only read.

Scanned Oct 21, 2026

3 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http proof-fetch https://prooffetch.tryneverclosed.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn2 info
  • Warnproof_fetch_evidence

    The server marks "proof_fetch_evidence" as not read-only (readOnlyHint: false), and its words say it reads.

    Matched text

    annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}; The name "proof_fetch_evidence" says "fetch": a word for reading.

    What this check looks for
  • Infoproof_fetch_preflight

    The input schema at properties.url.description mentions "credentials".

    Matched text

    inputSchema.properties.url.description: "Public HTTP(S) document URL. No credentials, private networks, authenticated pages..."

    What this check looks for
  • Infoproof_fetch_evidence

    The input schema at properties.url.description mentions "credentials".

    Matched text

    inputSchema.properties.url.description: "Public HTTP(S) document URL. No credentials, private networks, authenticated pages..."

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Changes things 1Claude Code: ask
  • proof_fetch_evidenceFetch a public URL and return its cited, paragraph-addressable text with integrity hashes and a receipt.2 findings

    Why it is in this group

    • The name "proof_fetch_evidence" says "fetch": a word for reading.
    • The server marks it as not read-only (readOnlyHint: false).

    Findings

    • Info

      The input schema at properties.url.description mentions "credentials".

      Matched text

      inputSchema.properties.url.description: "Public HTTP(S) document URL. No credentials, private networks, authenticated pages..."

      What this check looks for
    • Warn

      The server marks "proof_fetch_evidence" as not read-only (readOnlyHint: false), and its words say it reads.

      Matched text

      annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}; The name "proof_fetch_evidence" says "fetch": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Fetch a public URL and return its cited, paragraph-addressable text with integrity hashes and a receipt. Uses one credit from a ProofFetch key, and only when extraction succeeds. Needs the key sent as the MCP request header Authorization: Bearer <key>: a free key holds 25 extractions (no card, POST /v1/keys/free or the ProofFetch home page); a paid key holds 500 for $5.00 (sold on the ProofFetch home page). Example: {"url":"https://example.com/"}.

    Annotations the server declares

    • title: Get cited page text (uses a key credit)
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
Only reads 2Claude Code: allow
  • proof_fetch_offerReturns the offer and request schema without buying.No findings

    Why it is in this group

    • The name "proof_fetch_offer" says "fetch": a word for reading.
    Description, as the server wrote it
    Returns the offer and request schema without buying. Full cited text: 25 free extractions with a free key (no card), then $0.01 a page either way: a 500-page card pack for $5, or $0.50 per Stripe MPP call, which returns the page plus an API key holding 49 more. Cited text uses POST /v1/evidence with a caller-generated idempotency key. Example arguments: {}.

    Annotations the server declares

    • title: Show the offer and prices
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • proof_fetch_preflightFree: checks a public URL and returns fetchability, provenance, hashes, deterministic injection indicators and a free preview of the first 1,000 or so characters of text (short pag…1 finding

    Why it is in this group

    • The name "proof_fetch_preflight" says "fetch": a word for reading.

    Findings

    • Info

      The input schema at properties.url.description mentions "credentials".

      Matched text

      inputSchema.properties.url.description: "Public HTTP(S) document URL. No credentials, private networks, authenticated pages..."

      What this check looks for
    Description, as the server wrote it
    Free: checks a public URL and 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}.

    Annotations the server declares

    • title: Check a public page (free)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.3.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http proof-fetch https://prooffetch.tryneverclosed.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__proof-fetch__proof_fetch_preflight",
      "mcp__proof-fetch__proof_fetch_offer"
    ],
    "ask": [
      "mcp__proof-fetch__proof_fetch_evidence"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as proof-fetch. Review it before you use it.