MCP server

x402 MCP Starter

io.github.kadopi/x402-mcp-starter

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkAbout 254 tokens per request once connected2 tools

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

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 2
Token cost: About 254 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http x402-mcp-starter https://x402-mcp-starter.kadopi.workers.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.x402-mcp-starter]
url = "https://x402-mcp-starter.kadopi.workers.dev/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"x402-mcp-starter":{"type":"http","url":"https://x402-mcp-starter.kadopi.workers.dev/mcp"}}}

Antigravity

agy mcp add x402-mcp-starter https://x402-mcp-starter.kadopi.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"x402-mcp-starter","server_url":"https://x402-mcp-starter.kadopi.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"x402-mcp-starter","server_url":"https://x402-mcp-starter.kadopi.workers.dev/mcp"}

get_paid_sample ~96 tokens
Fixed-price reference path: confirms that an x402-aware MCP client can pay and receive a receipt.
validate_x402_config ~158 tokens
Free: checks Base USDC, price, amount, recipient, and facilitator settings before you deploy an x402-paid MCP tool.

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pdfzen
Render PDFs from 45 starter templates or raw HTML. Pay-per-render with USDC via x402.
ScrapeMole Domains
Pay-per-call x402 DNS, WHOIS/RDAP, availability, email security, SSL check, CT subdomains.
IntentFence Agent Action Firewall
Fail-closed action authorization, MCP risk scanning, x402 checks, and signed receipts.
Agent Margin Router
38 x402 pay-per-call tools for AI agents (USDC/USDT on Base): web, crypto, on-chain, geo, packages
Cc0company
cc0pedia CC0 database + cc0.company agent services as MCP tools, paid per call via x402 on Base.
BorealHost
Agent-native web hosting — deploy sites, manage DNS, register domains, scale infrastructure

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