x402-trust MCP

An MCP server that provides discovery and trust verification for x402 endpoints. It enables agents to perform semantic and keyword searches across a catalog of endpoints, retrieve deterministic trust scores based on uptime and on-chain settlement, view endpoint history, find alternatives, and monitor endpoints for changes. It supports both local execution via npx and a hosted zero-install endpoint.

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Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by JonasFuchss

Vendor documentation

What you can do with it

Search for x402 endpoints by name, host, or semantic description
Check trust scores and grades for specific endpoints before payment
Monitor endpoints for 30 days to detect changes in payTo or price
Find semantically similar alternative endpoints with higher trust scores

Source and maintenance

Community listingRegistry 1.16.0

mcp-registry: io.github.JonasFuchss/x402-trust-mcp@1.16.0 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

x402-trust-mcp 1.16.0

npmnpx

x402-trust-mcp package definition

{
  "version": "1.16.0",
  "transport": "stdio",
  "identifier": "x402-trust-mcp",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "X402_PRIVATE_KEY",
      "description": "Optional Base wallet private key (with or without the 0x prefix). When set, the paid tools auto-pay over x402 up to X402_MAX_USD; otherwise they return a price quote. The free tools need no key."
    },
    {
      "name": "X402_MAX_USD",
      "default": "0.05",
      "description": "Per-call auto-pay ceiling in USD. 0 disables auto-pay."
    },
    {
      "name": "X402_MAX_TOTAL_USD",
      "default": "1.00",
      "description": "Cumulative auto-pay cap per process in USD. 0 = unlimited."
    },
    {
      "name": "X402_MAX_CALLS",
      "default": "1000",
      "description": "Max paid calls per process. 0 = unlimited."
    },
    {
      "name": "X402_TRUST_API_BASE",
      "default": "https://x402-trust.com",
      "description": "API base URL."
    },
    {
      "name": "X402_TIMEOUT_MS",
      "default": "20000",
      "description": "Request timeout in milliseconds."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "x402-trust-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402-trust-mcp@1.16.0"
      ],
      "env": {
        "X402_PRIVATE_KEY": "<YOUR_X402_PRIVATE_KEY>",
        "X402_MAX_USD": "<YOUR_X402_MAX_USD>",
        "X402_MAX_TOTAL_USD": "<YOUR_X402_MAX_TOTAL_USD>",
        "X402_MAX_CALLS": "<YOUR_X402_MAX_CALLS>",
        "X402_TRUST_API_BASE": "<YOUR_X402_TRUST_API_BASE>",
        "X402_TIMEOUT_MS": "<YOUR_X402_TIMEOUT_MS>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "x402-trust-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402-trust-mcp@1.16.0"
      ],
      "env": {
        "X402_PRIVATE_KEY": "<YOUR_X402_PRIVATE_KEY>",
        "X402_MAX_USD": "<YOUR_X402_MAX_USD>",
        "X402_MAX_TOTAL_USD": "<YOUR_X402_MAX_TOTAL_USD>",
        "X402_MAX_CALLS": "<YOUR_X402_MAX_CALLS>",
        "X402_TRUST_API_BASE": "<YOUR_X402_TRUST_API_BASE>",
        "X402_TIMEOUT_MS": "<YOUR_X402_TIMEOUT_MS>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "x402-trust-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "x402-trust-mcp@1.16.0"
      ],
      "env": {
        "X402_PRIVATE_KEY": "<YOUR_X402_PRIVATE_KEY>",
        "X402_MAX_USD": "<YOUR_X402_MAX_USD>",
        "X402_MAX_TOTAL_USD": "<YOUR_X402_MAX_TOTAL_USD>",
        "X402_MAX_CALLS": "<YOUR_X402_MAX_CALLS>",
        "X402_TRUST_API_BASE": "<YOUR_X402_TRUST_API_BASE>",
        "X402_TIMEOUT_MS": "<YOUR_X402_TIMEOUT_MS>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "x402-trust-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402-trust-mcp@1.16.0"
      ],
      "env": {
        "X402_PRIVATE_KEY": "<YOUR_X402_PRIVATE_KEY>",
        "X402_MAX_USD": "<YOUR_X402_MAX_USD>",
        "X402_MAX_TOTAL_USD": "<YOUR_X402_MAX_TOTAL_USD>",
        "X402_MAX_CALLS": "<YOUR_X402_MAX_CALLS>",
        "X402_TRUST_API_BASE": "<YOUR_X402_TRUST_API_BASE>",
        "X402_TIMEOUT_MS": "<YOUR_X402_TIMEOUT_MS>"
      }
    }
  }
}

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