MCP MeasureMCP Measure

index observed

x402 MCP Starter

Free self-hosted x402 USDC billing for Cloudflare MCP servers, with a Base Sepolia test endpoint.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
80%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~283Tokens (tool definitions)
~827 BTypical response size
Minimal attention impact (0.22% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "x402-mcp-starter": {
      "url": "https://x402-mcp-starter.kadopi.workers.dev/mcp"
    }
  }
}

Remote endpoints

https://x402-mcp-starter.kadopi.workers.dev/mcpstreamable-http

What it can do

Tool inventory

Tools (2)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢validate_x402_config(network, asset, amount, priceUsd, payTo, ...)

Free: checks Base USDC, price, amount, recipient, and facilitator settings before you deploy an x402-paid MCP tool.

Input Schema

{
  "type": "object",
  "properties": {
    "network": {
      "type": "string",
      "enum": [
        "eip155:84532",
        "eip155:8453"
      ]
    },
    "asset": {
      "type": "string"
    },
    "amount": {
      "type": "string"
    },
    "priceUsd": {
      "type": "number"
    },
    "payTo": {
      "type": "string"
    },
    "facilitatorUrl": {
      "type": "string"
    }
  },
  "required": [
    "network",
    "asset",
    "amount",
    "priceUsd",
    "payTo",
    "facilitatorUrl"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}
🟢get_paid_sample(option)

Fixed-price reference path: confirms that an x402-aware MCP client can pay and receive a receipt.

Input Schema

{
  "type": "object",
  "properties": {
    "option": {
      "type": "string",
      "enum": [
        "basic",
        "standard",
        "extended"
      ]
    }
  },
  "required": [
    "option"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Community

Rate this Server

Evidence

Recent observations

verifiedversion not recorded2 tools
verifiedversion not recorded2 tools
verifiedversion not recorded2 tools
verifiedversion not recorded2 tools
verifiedversion not recorded2 tools
verifiedversion not recorded2 tools