Best Http 402 AI Skills & MCP Servers
8 curated Http 402 skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.
Pay
Voidly Pay SDK — agent-to-agent payments for AI agents. Sign envelopes, settle transfers, run x402 paywalls, verify webhooks.
Payagent
MCP server for ArisPay-delegated x402 USDC payments. Use with Claude Desktop, Cursor, or any MCP client — no private keys in your process.
Buyforme
MCP server alias for @arispay/payagent-mcp. Configure your Claude Desktop / Cursor / Windsurf MCP server as `npx buyforme-mcp` to let the model pay any x402 URL via ArisPay delegated custody.
Xenarch
CLI for Xenarch — non-custodial x402 MCP server for AI agents. Claude, Cursor, LangChain and CrewAI pay HTTP 402–gated APIs with USDC on Base L2.
X402 Tools
22 x402 pay-per-call utility tools for AI agents — scrape, validate, embed, store, moderate, notify, convert, prevent loops. No accounts, no API keys. USDC on Base via the x402 protocol.
Core
Shared TypeScript types and x402 payment-flow utilities for @xenarch/agent-mcp — Xenarch's non-custodial x402 MCP server.
Agent
Non-custodial x402 MCP server for AI agents. Lets Claude, Cursor, LangChain and CrewAI pay for HTTP 402–gated APIs with USDC micropayments on Base L2. Unlike Cloudflare Pay-Per-Crawl, works on any host and settles agent-to-publisher direct.
Ari
MCP server that stops AI agents from overpaying. Drops into Claude Desktop, Cursor, Continue, Windsurf, Zed, ChatGPT desktop, and Gemini CLI to give any agent live fair-market-value lookups, a green/amber/red prepay verdict, and cryptographically-signed (
About Http 402 skills on iClaude
iClaude is the universal install layer for AI skills. Every Http 402 skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.