Best 402 AI Skills & MCP Servers

MCP server for Run402 — AI-native Postgres databases with REST API, auth, storage, and row-level security. Pay with x402 USDC micropayments.

Solana Token Safety API & MCP Server — rug pull, honeypot, and safety analysis for AI agents

PipRail MCP server — hand any MCP client a budget-bound x402 payment wallet. Local-only, no backend, no custody; the spend policy is enforced before any on-chain send, so the model literally cannot overspend.

Pay-per-fetch MCP server. Agent wallet pays $0.005 USDC on Base (or XRP on XRPL Mainnet) per call via the x402 protocol. Returns clean markdown. No accounts, no API keys, no humans in the loop.

ASG Agent Pay — the banking layer for autonomous AI agents. Multi-chain payments (x402 + MPP), virtual cards, policy engine, and wallet abstraction across 17 networks. The only SDK unifying Coinbase x402 and Stripe MPP protocols.

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.

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 (

MCP server for APIMesh — 76 x402-payable tools for AI agents (74 APIs + wallet usage + spend caps). Covers web vitals, security headers, SEO audits, email security and verification, tech-stack detection, brand assets, redirect chains, indexability, brand

MCP server for agent payments ecosystem intelligence. Pay per query via x402.

Cinderwright Discovery Hub MCP Server + CLI. Cross-protocol agent payments: x402, L402 (Lightning), MPP. 2,834 services. Try: npx cinderwright "Bitcoin price"

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.

Installable AgentLux MCP server and embeddable toolkit for marketplace, identity, creator, services, and social flows on Base

MCP server exposing PowForge Depth-of-Identity oracle to Claude Code, Cursor, and any MCP-compatible agent. Three tools: doi_score_lookup (priced via L402), doi_sign_vouch (unsigned-event builder), doi_score_verify (offline schnorr verification). The Ligh

L402 Lightning paywall + Depth-of-Identity score gate for MCP. Two integration shapes: (a) stdio MCP server exposing l402_gate_challenge / l402_gate_verify / l402_gate_score for agent clients; (b) drop-in Express middleware + MCP tool factory that combine

MCP server for UtilsForAgents with eight paid x402 utility tools plus one free feedback tool, with Base or Solana payer support.

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.

MCP server for 402 Index — search 15,000+ paid API endpoints across L402, x402, and MPP protocols with real-time health monitoring

MCP server for the Gatefare paid-API marketplace. Works with Claude Desktop, Cursor, Continue, and any MCP client. Pay per API call in USDC on Base via the open x402 standard. Non-custodial.

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.

Voidly Pay SDK — agent-to-agent payments for AI agents. Sign envelopes, settle transfers, run x402 paywalls, verify webhooks.

The complete TRON infrastructure layer for AI agents. 66 tools, 30 prompts, 21 resources. MCP + A2A + ACP + x402 v2 facilitator.

Model Context Protocol server for the XRPL-Utilities portfolio: Sentinel (wallet classifier), Pulse (signal feed), Telemetry (supply + utility floor), Trust (XLS-70/80/81 directory), Vault (RWA tracker), and Flows (ETF AUM vs XRPL flow correlation). Expos

Generic MCP server for calling x402-protected APIs with automatic payment handling

MCP server for ArisPay-delegated x402 USDC payments. Use with Claude Desktop, Cursor, or any MCP client — no private keys in your process.