MCP Server Directory

SignalHarness.ai ai.signalharness/mcp

330 production AI-agent services for data, validation, AI, crypto, and x402 pay-per-use.

santyvv-data — market & on-chain data com.santyvv/tienda

Market and on-chain crypto data for AI agents. Pay per call in USDC on Base (x402).

Polymarket paper trading for AI agents: $10k paper money, real order books, official fees.

Look up protein structures and search the RCSB Protein Data Bank. No key required.

Vurto Swap io.github.cryptoconspiracy/vurto-swap

Token swaps at the best net price on 9 EVM chains and Solana. No API key, non-custodial.

AET Machine Commerce io.github.mnvhmslf/aet-machine-commerce

Read-only PAPER market research for autonomous agents; no live trading or alpha claim.

Liqwall market data com.liqwall/market-data

Crypto liquidation maps, liquidations, funding, open interest: 4 tools without a key, 6 with one.

Laso Finance finance.laso/laso-finance

Spend USDC in the real world: prepaid cards, gift cards, push-to-card, and bank payouts.

Journal entry testing (JET) for accounting audits. 15 screening rules, zero dependencies.

SendFaxFast com.sendfaxfast/fax

Send real faxes from AI chat. PDF, JPG or PNG. Pay per fax via Stripe link. US, CA, AU, NZ + 39

Margeo com.margeoapp/mcp

Margeo gives an AI agent a French reseller's stock, sales, net margin and micro-enterprise tax.

NewDesk ai.newdesk/newdesk

Help desk: read the queue, answer and solve tickets, look up customers, refund in Stripe.

PabandiOS io.github.jweezy119/Pabandi

Trust and settlement for AI agents: portable attestations, escrow, x402/USDC payments on Solana.

databutler-policy-rates io.github.physics-star-cat/databutler-policy-rates

Bank of England, Fed and ECB policy rates, read from the banks' own pages, with dates.

Search free stock photos on Pexels. No key required.

HiddenSwap com.hiddenswap/swap

No-KYC crypto swaps, no account or email. Read-only quotes, coins, swap links, order status.

HTX (Huobi) crypto exchange: market tickers and depth.

Insidewell: SEC Form 4 Insider Trading Tracker & Alerts io.github.CyberMax-tools/sec-insider-tracker

Insidewell: SEC Form 4 insider buys/sells by ticker or whole market, with cluster-buy alerts.

Use this MCP server to Guild Wars 2, items, trading post prices, achievements, and living world...

findefend com.findefend/findefend

Finds recurring charges in bank statements and flags what to cancel.

Crypto prices from Gemini. No key required.

Agent Purchase Verification io.github.RFrost19/agent-purchase-verification

Check if an ecommerce purchase meets buyer rules before payment. Returns PASS, FAIL, or REVIEW.

StashGamma EOD Stock Data com.stashgamma/eod-stock-data

Daily end-of-day OHLCV stock data for U.S.-listed symbols, 15 years of history. Free API key.

Camden Tools com.camdentools/shop

UK tool shop: search, prices ex/inc VAT, stock, delivery, order tracking and basket links.