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io.github.scrape402/scrape402

by scrape402 · remote · no sign-in to list tools · v1.0.0 · published by GitHub user scrape402

Pay-per-call agent tools via x402 (USDC on Base): chat, prices, funding, RNG. No account or keys.

Changes · 4
CompareRegistry entry

5 tools: 4 change things and 1 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http scrape402 https://x402.shizu.me/mcp/rpc

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnchat

    The server marks "chat" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "open": a word for a change.

    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.

5 tools

Changes things 4Claude Code: ask
  • chatOpenAI-style chat completion (Claude Haiku), billed per token off-chain.1 finding

    Why it is in this group

    • The description's first verb is "open": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "chat" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "open": a word for a change.

      What this check looks for
    Description, as the server wrote it
    OpenAI-style chat completion (Claude Haiku), billed per token off-chain. Needs a prepaid session.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_priceReal-time crypto spot price for a trading pair (e.g.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Real-time crypto spot price for a trading pair (e.g. BTC-USD). Pay per call via x402 ($0.003, USDC on Base), or 1 credit(s) with a prepaid session.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • funding_ratesPerpetual-swap funding rates; optional comma-separated coins filter.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Perpetual-swap funding rates; optional comma-separated coins filter. Pay per call via x402 ($0.003, USDC on Base), or 1 credit(s) with a prepaid session.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • randomCryptographically-strong randomness: hex bytes plus an optional uniform integer in [min, max].No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Cryptographically-strong randomness: hex bytes plus an optional uniform integer in [min, max]. Pay per call via x402 ($0.003, USDC on Base), or 1 credit(s) with a prepaid session.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Only reads 1Claude Code: allow
  • catalogList every scrape402 tool and price, and how to pay.No findings

    Why it is in this group

    • The description's first verb is "list": a word for reading.
    Description, as the server wrote it
    List every scrape402 tool and price, and how to pay. Free — no session required.

    Annotations the server declares

    • readOnlyHint: 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 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http scrape402 https://x402.shizu.me/mcp/rpc

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__scrape402__catalog"
    ],
    "ask": [
      "mcp__scrape402__random",
      "mcp__scrape402__crypto_price",
      "mcp__scrape402__funding_rates",
      "mcp__scrape402__chat"
    ],
    "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 scrape402. Review it before you use it.