Best Circle MCP Servers
Circle is a global financial technology firm that enables businesses of all sizes to harness the power of digital currencies and public blockchains for payments, commerce and financial applications worldwide.
Why this server?
Provides payment settlement via Circle Gateway for x402 transactions.
AlicenseAqualityCmaintenanceReal-time stablecoin yield index across DeFi protocols and CEX earn programs, with an AI yield advisor, risk signals and non-custodial deposit/redeem quotes for AI agents. Ships agent skills and a self-host stdio wrapper alongside the hosted remote MCP with x402 pay-per-call.425 npm3MITWhy this server?
Reports whether an address has been frozen by Circle as part of AML screening, surfacing issuer freeze events in the risk and sanctions evidence returned for a wallet.

PublicAML MCP Serverofficial
AlicenseAqualityBmaintenanceEnables blockchain AML screening of addresses in plain language inside any MCP client, covering sanctions and freeze checks, risk scoring, fund tracing, and counterparty classification across bitcoin, ethereum, bsc, and tron. Works without an account, with an optional API key that lifts rate limits and unlocks outgoing tracing.339 npmMITWhy this server?
Allows agents to create, verify, and pay invoices in Circle's USDC stablecoin on the Ink blockchain, with payment detection based on USDC Transfer events.

four02-commerce-mcpofficial
AlicenseAqualityCmaintenanceEnables MCP-capable agents to create, verify, and pay EIP-712 USDC invoices on Ink, and read onchain commerce reputation for ERC-8004 agents.6MITWhy this server?
Tracks Circle's USD Coin (USDC) stability, offering current price information, historical data analysis, and peg deviation reports to assess stablecoin integrity.
AlicenseAqualityDmaintenanceAn MCP server that tracks stablecoin peg integrity across multiple blockchains.44MITWhy this server?
Facilitates multi-chain USDC settlement using Circle's CCTP infrastructure for cross-chain payments.
AlicenseAqualityCmaintenanceNon-custodial x402 MCP payment layer for AI agents — the open-source alternative to Vercel x402-mcp11680 npm8MITWhy this server?
Enables x402 USDC micropayment settlement on Base L2 using Circle's Native USDC contract, allowing AI agents to pay per tool invocation.

wham-engineofficial
AlicenseCqualityCmaintenanceProvides AI agents with 200 deterministic micro-services covering code auditing, 3D/robotics, media processing, cryptography, blockchain settlement, AI safety, networking, and math, with automatic x402 USDC micropayments.200MITWhy this server?
Enables fetching canonical entity dossiers for Circle, including news and market data.
AlicenseCqualityCmaintenanceAn MCP server offering 99 tools for AI agents to access crypto editorial content, market data, on-chain analytics, sentiment, and proprietary indicators, with citations and time-stamped responses.99239 npm1MITWhy this server?
Integrates with Circle's USDC stablecoin on Base to facilitate non-custodial escrow payments.
AlicenseAqualityDmaintenanceNon-custodial on-chain escrow + AI arbitration for agent-to-agent USDC payments on Base. Seven tools wrap a verified EscrowV1 contract — create, deliver, confirm, dispute, resolve — with read-only introspection if no wallet key is provided.72MITWhy this server?
Enables AI agents to assess counterparty risk scores and enforce payment policies using Circle's x402 payment infrastructure for automatic USDC microtransactions on Base.
AlicenseAqualityCmaintenanceMCP server for assessing counterparty risk in x402 payments using on-chain data, providing risk scores, decisions, and wallet spending policies to prevent fraud and unauthorized payments.1031 npm1MIT