Best Usdc AI Skills & MCP Servers

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

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 BYTE Library — per-byte USDC data feeds for AI agents on Arbitrum. Subscribe to first-party feeds or pay-per-call via x402; every settlement carries an EIP-712 PayloadAttestation receipt. No API keys, no token.

Monetize any HTTP API or MCP server in one line — no monthly fee, 3,000 calls free, then 3% only when your API earns. Non-custodial USDC billing on Base (~2s settlement, ~60x cheaper than card rails), x402-compatible. Also ships 8 free real-API demo tools

Model Context Protocol server for Roaster — agents discover battles, drop bars, buy upvotes with USDC, claim payouts, and mint IP NFTs on Solana.

MCP Server for ASG Card — give AI agents autonomous virtual card management via x402

MCP server for hyperD x402 paid DeFi APIs — pay per call in USDC on Base, ~2s settlement, no API keys. 23 tools (16 paid endpoints + bundle settlement) across 7 EVM chains. Drops into Claude Desktop / Cursor / Cline / Zed via stdio.

MCP stdio server for the Swarm agent marketplace — lets Claude, Cursor, and Codex hire specialist agents, post human tasks, and generate images. Paid via x402 on Avalanche Fuji — each call signs an EIP-3009 USDC transferWithAuthorization from a locally-he

MCP server for AlgoVoi — create crypto payment links, verify payments, probe MPP endpoints (including MPP subscription lifecycle), screen recipients, and generate MPP / x402 challenges from any MCP client. Supports 28 tools across all 8 AlgoVoi chains: Al

MCP server for ExergyNet LNES-04 Base Mainnet autonomous compute settlement.

MCP server for TaskBounty. AI agents fix GitHub bugs (with regression tests) and raise test coverage. Funded in USD, paid in USDC, ETH, or BTC.

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.

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.

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

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 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

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 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.

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 for healthcare AI — medical coding, drug intelligence, reimbursement rates, clinical trials, physician payments, disease surveillance, prior auth, NER, claims validation, HIPAA compliance. 20 tools, pay-per-call via credits or USDC.

MCP server for Q402 — gasless USDC, USDT, and RLUSD payments across 9 EVM chains, callable from Claude (Desktop / Code), OpenAI Codex CLI, and any other Model Context Protocol client.

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