Koskamo

Tollbooth x402 MCP

A community MCP server that provides AI agents with tools to discover, preview, and verify 56 pay-per-call financial calculators hosted on x402toll.com. It allows agents to browse the catalog, run free rounded previews, verify provenance hashes of paid responses, and learn the payment flow, without requiring an API key or account.

Package and access

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

Tollbooth x402 MCP logo, by SolomonisBlackCommunity listingLocal stdioSource reviewed; not executedPublished by SolomonisBlack
Vendor documentation

What you can do with it

  • Discover available financial calculators and their prices
  • Run free rounded previews of tax and lending tools
  • Verify the provenance hash of a paid response
  • Learn the x402 payment flow for paid endpoints

Source and maintenance

Community listingRegistry 0.6.0
mcp-registry: io.github.SolomonisBlack/tollbooth-x402@0.6.0Source repositoryProject website
Maintenance checked

Packages and installation

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

tollbooth-x402 0.6.0

npm
tollbooth-x402 package definition
{
  "version": "0.6.0",
  "transport": "stdio",
  "identifier": "tollbooth-x402",
  "registryType": "npm"
}

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": {
    "tollbooth-x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tollbooth-x402@0.6.0"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "tollbooth-x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tollbooth-x402@0.6.0"
      ]
    }
  }
}

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": {
    "tollbooth-x402-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "tollbooth-x402@0.6.0"
      ]
    }
  }
}

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": {
    "tollbooth-x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tollbooth-x402@0.6.0"
      ]
    }
  }
}

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