Best Payment AI Skills & MCP Servers

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.

MCP server for Full Queso CRM/POS — Reporte 239 daily sales reconciliation by payment method with IGTF/IVA, counter closings, and cross-reference auditing

MCP server for AgentPay — the payment gateway for autonomous AI agents. Discover, provision, and pay for MCP tool APIs. Includes reliability monitoring with circuit breakers and health metrics.

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.

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

PayClaw as an MCP server. Adds pay/balance/history tools to Claude Desktop, Cursor, Cline, and any MCP-compatible client. v0.2: true gasless via Circle Paymaster + Kernel smart accounts on Base — agents never need ETH. Wraps @grip-labs/payclaw.

AgentPay MCP Server - Non-custodial x402 payment layer for AI agents. Multi-chain wallets, spending limits, and machine-to-machine payments. Patent Pending.

MCP server for SwarmApi: 9 pay-per-call tools for SEC filings, company news, insider transactions, jobs, web search, GitHub repos, and npm/PyPI/cargo package security. Payments settled per request in USDC on Base via x402.

First MCP wellness server for HUMANS and AI AGENTS. Pay-per-call wellness micro-content (18 formats × 20 languages × 2 audiences), settled in USDC on Solana via x402.

Payment layer for AI agents. One MCP, five protocols, thousands of paid APIs your agent can call.

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

MCP server for Tebra/Kareo practice management — 45 tools covering patients, appointments, encounters, billing, payments, documents, providers, and FHIR clinical data for AI agents via the Model Context Protocol

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

The MCP server for Taiwan NHI billing intelligence — rejection codes, audit clauses, drug payment rules, fee schedule, special materials, and appeal case precedents. Helps AI agents answer Taiwan health-insurance billing and audit questions with authorita

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

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.

MCP server for GoldBean - 10 core paid APIs for AI Agents via x402 micropayments. Crypto price, weather, search, image-gen, code, AI chat and more. Pay-per-call with USDC on Base.

MCP server for ListBee — commerce API for AI agents

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.

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.

MCP Server para la API products-payment-refacil

MCP server that turns PowForge pow-captcha into agent auth. Charge AI agents per-call without accounts: PoW solve = free tier, Lightning payment = paid tier. Three tools: challenge, verify, status. Stdio + HTTP Streamable transports, stdlib only — no MCP

Shared TypeScript types and x402 payment-flow utilities for @xenarch/agent-mcp — Xenarch's non-custodial x402 MCP server.