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x402 Dev Console

v1.0.0

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x402 API Gateway

v1.5.0InfrastructureTools 4 actions
Use with an LLMTry in Playground

SERVER URL

http://localhost:3000/api/mcp-server/api-gateway

CONNECTION JSON

{
  "mcpServers": {
    "api-gateway": {
      "command": "npx",
      "args": [
        "mcp-remote@latest",
        "http://localhost:3000/api/mcp-server/api-gateway"
      ]
    }
  }
}

Learn more about supported MCP clients

MCP HOST CONNECTIONS

Connect this MCP server directly to your AI assistant tools by using the JSON config above. Click on a logo to see a demo video.

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CursorWatch demo
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ClaudeWatch demo
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WindsurfWatch demo

DESCRIPTION

Create payment-gated API endpoints in seconds. Wrap any API with x402 payment requirements. Perfect for monetizing data feeds, AI models, or premium services. Automatic billing and access control.

AVAILABLE TOOLS

create_endpoint

Create new payment-gated API endpoint

x402_call_api

Call payment-gated API (auto-pays via x402)

check_earnings

Check earnings from your gated APIs

manage_pricing

Update pricing for your endpoints

CODE EXAMPLES

JavaScript
// API Gateway with x402
import { Client } from '@modelcontextprotocol/sdk';

const client = new Client();
await client.connect('https://gateway.x402.app/mcp');

// Call payment-gated API (auto-pays)
const result = await client.callTool({
  name: 'x402_call_api',
  arguments: {
    endpoint: 'premium-sentiment-api',
    params: { symbol: 'SOL' },
    wallet: 'YourWallet...'
  }
});

Official MCP SDK Documentation:
https://github.com/modelcontextprotocol/modelcontextprotocol

Installation:
npm install @modelcontextprotocol/sdk

Authentication:
- For MCP Hosts (Cursor, Windsurf, Claude Desktop), saving the JSON config to your tool will automatically trigger the browser OAuth flow
- For programmatic access, obtain the OAuth token by running "npx mcp-remote <url>" in the terminal and follow the instructions

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