usdc MCP servers & tools

Non-custodial on-chain escrow + AI dispute arbitration for agent-to-agent USDC payments on Base. Seven tools covering the full EscrowV1 contract surface: create escrow, mark delivered with on-chain content hash, confirm or dispute, arbiter resolves with signed verdict, cancel/escalate on timeout. npx @arbitova/mcp-server

PayPerByte — per-byte data marketplace for AI agents on Arbitrum. Discover publishers, evaluate on-chain Proof-of-Quality Score (PQS), subscribe + pay per request in USDC via x402 gateway. 15 tools, zero API keys.

Agent marketplace and services MCP server for AgentLux. Browse marketplace items, manage agent identity, creator workflows, service hires, social flows, and Base/x402 commerce through 33 tools. Install via npx -y @agentlux/mcp-server.

Payment rails for AI agents — escrow, settlement, discovery, and disputes from any context window.

Wallet for AI agents. Earn via invoices, spend on other agents and paid APIs, manage USDC on Solana with human-set spending limits and FROST 2-of-2 threshold signing.

Autonomous USDC yield for AI agents on Base. 9 tools: register agents, split payments 80/20 (liquid/yield), withdraw anytime, simulate splits, check APY, and track on-chain referrals. Non-custodial, no lockup, MIT licensed. npx @clicks-protocol/mcp-server

Non-custodial DeFi banking for AI agents on Sui. 35 tools, 20 prompts for save, borrow, invest, exchange, send, pay — with auto yield optimization across NAVI, Suilend, and Cetus.

x402 Micropaid API Marketplace — 10 AI tools for agents. Crypto prices, web search, weather, image-gen, LLM chat, code execution, translation, sentiment analysis, and QR code generation. Pay-per-call with USDC on Base (no API keys, no registration). Install with \

Discover, preview & self-verify 56 x402 pay-per-call finance/tax calculators for AI agents.

Remote MCP gateway for SCRIPTMASTERLABS x402-paid tools and agent-native API access on Base, with free capability discovery and pay-per-use execution.

Non-custodial paying-fetch client for agents that pay APIs over HTTP 402 (x402, USDC on Base). The operator sets hard per-call/per-day/per-host spend caps, an approval threshold, and allow/deny lists, with an append-only receipt for every attempt; the agent can't raise its own limits. npx -y -p @forum-labs/payfetch payfetch-mcp

Circle Agent Stack for AI agents: create USDC wallets, set spend policies, send stablecoin, and pay x402-gated endpoints. Wraps the Circle CLI so auth stays out of the server. Six tools. npx circle-agent-stack-mcp

Vision, web and data tools paid per call in USDC on Base via x402. No account, no API key.

Analyze text sentiment, emotions, confidence scores, and key phrases. x402 USDC.

11 pay-per-call web tools for AI agents, auto-paid in USDC on Base via x402. No API keys.

ERC-8004 registered AI Agent that delivers uplifting messages via MCP (SSE transport) with on-chain USDC tipping, ERC-8004 reputation feedback, and discovery across 6 chains.

Open-source x402 micropayments stack for MCP. Pay-per-tool-call USDC settlement on Solana via the first open-source self-hostable facilitator (no x402.org dependency). Includes TypeScript SDK, CLI, paywall middleware, hosted devnet endpoint, and a live Claude Opus demo. npm install @agenticpay/sdk

Agent payments over x402: pay in USDC on Base with no signup, plus trust data and hiring.

Web content extraction for AI agents. Pay per call with x402 (USDC on Base). No API key.

785+ paid intelligence endpoints in one MCP server — agents pay per query via x402 USDC on Base.

Agent-native helpdesk where AI agents run support tickets and pay per action in USDC via x402.

Verify claims with web evidence. Returns sources and verdict. x402 micropayment.

MCP Server for Clawallex payment API - Pay for anything with USDC virtual cards

Pay-per-call social enrichment + 140+ lookups for AI agents. x402 + USDC on Base.

Payments for AI agents: gasless USDC on Base + JIT single-use virtual cards, PAN never in context.

x402 service-quality oracle: check a service's paid-probe quality tier and score before paying it.

Open-source EIP-2612 Permit-based wallet sessions for AI agents using MCP.

Financial infrastructure for AI agents: wallets, USDC transfers, lending, jobs on Polygon

Pay-per-call UK MOT history, reliability analytics and identifier utilities. x402 USDC on Base.

x402 micropayments MCP: Xiaohongshu notes and paid APIs settled in USDC on Base.

4 Google Maps endpoints. Pay per call in USDC via x402.

1 Google Search endpoints. Pay per call in USDC via x402.

7 Google Play endpoints. Pay per call in USDC via x402.

16 Instagram endpoints. Pay per call in USDC via x402.

Pay-per-call security verification for wallets, contracts, agents and apps, in USDC over x402.

Live AI agent economy on Base L2 with 113 tools: agent rosters, city economies, agent credit data, a business simulation game, x402 payment checks, and crypto news.

Browse, recommend, and buy authentic Chinese tea from hou-tea.com using USDC stablecoin via the x402 protocol. First commerce MCP that ships real on-chain payment intents (delegated to wallet MCPs like @coinbase/payments-mcp). 8 tools: browse / recommend / explain / compare / health-filter / payment / order-status / agent-card.

x402 toolkit for AI agents: paid web, AI, and Base chain tools per call in USDC. Free tools too.

Search, read & publish paid essays. Pay-per-read in USDC on Base (x402); wallet-only, no account.

Stablecoin Yield Index (SYX) and live USDC vault APYs across Ethereum, Base, Arbitrum.

30 pay-per-call APIs for AI agents: compliance, trade, safety, web, data. USDC on Base via x402.

Adversarial verification for AI agents - pay an independent skeptic per verdict in USDC via x402.

Local agent wallet + 900 pay-per-call data APIs — free discovery, x402 USDC, code-level spend caps

Bi-temporal memory-as-a-service and paid agent labor. Pay-per-call USDC via x402; signed receipts.

Pay-per-call crypto intelligence: 19 tools over 10+ live sources, USDC via x402.

Agent-native helpdesk where AI agents run support tickets and pay per action in USDC via x402.

Classify text into categories with confidence, readability, content type. x402.