VerifyAPI — fact-check with signed receipts

MCP server · by KyTheKitty

Developer Tools npm v0.1.9

Fact-check any claim with live web sources. Ed25519-signed receipts. Catches hallucinations.

View source ↗ Website ↗ Generate config for multiple servers More servers

Install

Pin version registry version 0.1.9

npm
npx -y @verify-api/mcp

npm
npx -y @verify-api/mcp@0.1.9

Setup by client

Pick your client — the config below is generated for this server (local stdio). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp@0.1.9"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --env VERIFYAPI_API_KEY=<YOUR_VERIFYAPI_API_KEY> verifyapi -- npx -y @verify-api/mcp

claude mcp add --env VERIFYAPI_API_KEY=<YOUR_VERIFYAPI_API_KEY> verifyapi -- npx -y @verify-api/mcp@0.1.9

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp@0.1.9"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

{
  "servers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp@0.1.9"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

{
  "mcpServers": {
    "verifyapi": {
      "command": "npx",
      "args": [
        "-y",
        "@verify-api/mcp@0.1.9"
      ],
      "env": {
        "VERIFYAPI_API_KEY": "<YOUR_VERIFYAPI_API_KEY>"
      }
    }
  }
}

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

VERIFYAPI_API_KEY secret — Your VerifyAPI key (csk_live_...). Get one free at https://verify-api.dev/signup — no card required. Unset = free trial (3 calls per IP per 24h, cached tier, signed receipts still included).
VERIFYAPI_BASE_URL — Override the API base URL. Defaults to https://api.verify-api.dev.

GitHub

最近更新于 47 天前

About this server

VerifyAPI MCP Server Fact check any claim before you act on it. One tool. Live web sources. Cryptographically signed receipts. What it does: VerifyAPI is a Model Context Protocol server that verifies factual claims against live web sources and returns a citable verdict — including the source URL, pu…

Summary from the project README — github.com/KyTheKitty/verifyapi-mcp

Distributed as npm, listed under Developer Tools. Review our MCP security guide before granting access to real data.

Frequently asked questions

What does the VerifyAPI — fact-check with signed receipts MCP server do?

How do I install VerifyAPI — fact-check with signed receipts?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is VerifyAPI — fact-check with signed receipts free to use?

The MCP server itself is free to install. The source is public on https://github.com/KyTheKitty/verifyapi-mcp. Any third-party service it calls may require its own API key and account.

Which clients support VerifyAPI — fact-check with signed receipts?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

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