x402-mcp-server

An MCP server that exposes a catalog of x402-paywalled HTTP tools on Base Mainnet, allowing LLM agents to perform tasks like generating SVG charts, transcoding GeoTIFFs, and accessing secret vaults via micro-payments in USDC without API keys.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by Jannis-E

You need:BASE_PRIVATE_KEY must be a Base Mainnet wallet private key funded with a small amount of real USDC

Vendor documentation

What you can do with it

Generate deterministic SVG bar charts from scalar data
Transcode GeoTIFF/COG files to PNG/WebP with georeference metadata
Access paywalled HTTP tools via x402 micro-payments

Source and maintenance

Community listingRegistry 1.0.5

mcp-registry: io.github.Jannis-E/x402-mcp-server@1.0.5 Source repository

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

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

x402-mcp-server_by_milza 1.0.5

npm

x402-mcp-server_by_milza package definition

{
  "version": "1.0.5",
  "transport": "stdio",
  "identifier": "x402-mcp-server_by_milza",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "BASE_PRIVATE_KEY",
      "format": "string",
      "isRequired": true,
      "description": "0x-prefixed EVM private key, wallet funded with Base USDC -- signs EIP-3009 payments locally."
    }
  ]
}

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-mcp-server-x402-mcp-server-by-milza": {
      "command": "npx",
      "args": [
        "-y",
        "x402-mcp-server_by_milza@1.0.5"
      ],
      "env": {
        "BASE_PRIVATE_KEY": "<YOUR_BASE_PRIVATE_KEY>"
      }
    }
  }
}

Cline

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

Cline configuration

{
  "mcpServers": {
    "x402-mcp-server-x402-mcp-server-by-milza": {
      "command": "npx",
      "args": [
        "-y",
        "x402-mcp-server_by_milza@1.0.5"
      ],
      "env": {
        "BASE_PRIVATE_KEY": "<YOUR_BASE_PRIVATE_KEY>"
      }
    }
  }
}

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-mcp-server-x402-mcp-server-by-milza": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "x402-mcp-server_by_milza@1.0.5"
      ],
      "env": {
        "BASE_PRIVATE_KEY": "<YOUR_BASE_PRIVATE_KEY>"
      }
    }
  }
}

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-mcp-server-x402-mcp-server-by-milza": {
      "command": "npx",
      "args": [
        "-y",
        "x402-mcp-server_by_milza@1.0.5"
      ],
      "env": {
        "BASE_PRIVATE_KEY": "<YOUR_BASE_PRIVATE_KEY>"
      }
    }
  }
}

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