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TruthPal

Official registry Security

Verify claims against sources: source verification, citation checking; $0.02 USDC on Base.

Source code Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package truthpal-mcp
Claude Code 
claude mcp add truthpal -e 'X402_BUYER_PRIVATE_KEY=<your x402_buyer_private_key>' -- npx -y truthpal-mcp@0.1.3
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "truthpal": {
            "command": "npx",
            "args": [
                "-y",
                "truthpal-mcp@0.1.3"
            ],
            "env": {
                "X402_BUYER_PRIVATE_KEY": "<your x402_buyer_private_key>"
            }
        }
    }
}

Environment variables

  • X402_BUYER_PRIVATE_KEY required secret Private key for a dedicated, limited-balance Base wallet used to authorize each $0.02 USDC verification payment.

Frequently asked questions

What is TruthPal?

Verify claims against sources: source verification, citation checking; $0.02 USDC on Base.

How do I install TruthPal?

It runs on your machine. In Claude Code: claude mcp add truthpal -e 'X402_BUYER_PRIVATE_KEY=<your x402_buyer_private_key>' -- npx -y truthpal-mcp@0.1.3. For other clients, paste the JSON configuration from this page into their MCP settings.

Does TruthPal need an API key?

Yes. It expects X402_BUYER_PRIVATE_KEY, which you set in its configuration.

Is TruthPal open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains TruthPal?

It is published by corslet1. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.