MCP Server Directory

Coal — Payments for AI agents io.github.emmanuel39hanks/coal

Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.

Knox Anchor com.bonissystems/knox-anchor

Bitcoin-anchored, tamper-evident audit-permanence layer for AI agents, FRE 902(13)/(14)-shaped.

Stripe-style USDC billing for any API. 8 free demo services no signup. Non-custodial.

Weather API io.github.Br0ski777/weather-api

Current weather and 7-day forecast for any location. OpenMeteo-powered. x402 micropayment.

gapup-mcp io.github.getgapup/gapup-mcp

271 agent-payable tools: competitive intel, finance, KYC, compliance, ESG. x402 per-call.

23 Solana on-chain data tools for AI agents via x402 micropayments + rug-screen token verdict

Validate EU e-invoices (Peppol, XRechnung, Factur-X, UBL, CII) and explain error codes.

AI copilot for French accounting firms on Pennylane. Monthly close memo in 8s, full general ledger.

CryptoAgentMail io.github.influqa/crypto-agent-mail

Hosted email MCP for AI agents with inboxes, send/receive, memory, recovery, and credits.

Japanese document AI for agents — invoice/meishi extraction, OCR, classification (hosted API).

Manage crypto payments, stores, digital products, and orders via InventPay

Wudao A-Share Stock Data MCP io.github.jcdreamjc/wudao-mcp

China A-share data for AI agents: 57 read-only tools plus 6 tools for your own watchlist.

Search FDIC institutions, branches, failures, and peer analysis over MCP.

Secant Agent Research Pack io.github.jnilrac/secant-agent-research-mcp

Paid MCP web research for agents: search, extraction, citations, and x402 payment discovery.

Inferventis — Financial Data, News & Web MCP io.github.jonathanpchapman/inferventis

Live financial data MCP: FX, crypto, stocks, news, URL reader. x402 on Base: $0.001/call.

MCP server for address derivation and encoding utilities across multiple blockchains via Crypto APIs

curve-mcp io.github.junct-bot/curve-mcp

Curve - 43 tools for swap quotes, liquidity pools, and trading data

Pay for AI inference with USDC micropayments on Polygon. No API keys needed.

Circle Agent Stack for AI agents: USDC wallets, spend policies, transfers, and x402 nanopayments.

Dynamic RAG Engine preventing AI hallucinations in Korean Finance and Crypto markets.

Post-quantum cryptography security scanner. Detect ECDSA/RSA vulnerabilities, NIST compliance.

instxnt io.github.EricSpencer00/instxnt

Create instxnt.xyz storefronts through Claude: add products, connect Stripe, go live.

Korea Invoices (POPBiLL 전자세금계산서 issue, query & NTS transmit) app.wishpool/korea-invoice-mcp

Korea POPBiLL e-tax-invoice: AI agents issue, query & transmit e-invoices, stateless BYO.

Lightning Wallet io.github.lightningfaucet/lightning-wallet-mcp

Give AI agents a Bitcoin wallet with Lightning Network payments and L402 support.