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Web Evidence

by impanyu · remote · no sign-in to list tools · v0.3.1 · published by GitHub user impanyu

Paid claim verification with cited web evidence, source provenance, snapshots, and hashes.

Changes · 4
CompareRegistry entry

5 tools: 4 change things and 1 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http web-evidence https://api.aisoup.net/web-evidence/mcp

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
  • verify_claimStandard verification with balanced evidence coverage.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.
    Description, as the server wrote it
    Standard verification with balanced evidence coverage. Costs $0.05 USDC on Base per call.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • verify_claim_deepDeep verification for compound or contested claims using up to 15 cited sources.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.
    Description, as the server wrote it
    Deep verification for compound or contested claims using up to 15 cited sources. Costs $0.12 USDC on Base per call.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • verify_claim_quickQuick verification for a narrow claim using up to 3 cited sources.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.
    Description, as the server wrote it
    Quick verification for a narrow claim using up to 3 cited sources. Costs $0.02 USDC on Base per call.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • verify_claim_researchResearch-grade verification with the largest search and evidence budget.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.
    Description, as the server wrote it
    Research-grade verification with the largest search and evidence budget. Costs $0.25 USDC on Base per call.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
Only reads 1Claude Code: allow
  • list_verification_tiersList Web Evidence verification tools, prices, and research limits.No findings

    Why it is in this group

    • The name "list_verification_tiers" says "list": a word for reading.
    Description, as the server wrote it
    List Web Evidence verification tools, prices, and research limits. This tool is free.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

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 0.3.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http web-evidence https://api.aisoup.net/web-evidence/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__web-evidence__list_verification_tiers"
    ],
    "ask": [
      "mcp__web-evidence__verify_claim_quick",
      "mcp__web-evidence__verify_claim",
      "mcp__web-evidence__verify_claim_deep",
      "mcp__web-evidence__verify_claim_research"
    ],
    "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 web-evidence. Review it before you use it.