MCP Server Directory

Plumb Data Exchange io.github.Mlcharle518/plumb-data-exchange

Verified table jobs and RPC-free payment verification (Base/Ethereum). Pay per call via x402.

Self-hosted personal finance app with bank sync, budgets, net worth and investment tracking

RiskReward Trading Calculators pro.riskreward/calculators

Free fee-aware position sizing, net risk/reward and trade performance. Read-only, no API key.

DexSheet: rug checks, rug-gated swaps, crypto fees and referrals com.dexsheet/mcp

Venue picks, fees and referrals; token rug checks (SheetScore); rug-gated cross-chain agent swaps

The Pillar io.thepillar/pillar

Find and lease ad windows and city billboards on The Pillar, a 3D tower. Paid monthly on Stripe.

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

First Dollar Desk dev.workers.undone-k.first-dollar-desk/verify

Human $1 Stripe checkout and $0.05 Base USDC agent verify over HTTP 402. Self-pay rejected.

rate-hub org.sky-1/rate-hub

Indicative fiat and crypto rates over MCP, paid per request via x402 at $0.0001/request.

AgentaOS io.github.AgentaOS/agentaos

Merchant of record: payment links, checkouts, subscriptions and invoices, with VAT handled.

Liqwall market data com.liqwall/market-data

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

Simple Easy Transactions agent checks com.simpleeasytransactions/agent-checks

Agent payment readiness and AI visibility checks, $1 per call over MPP or prepaid credits.

Search free stock photos on Pexels. No key required.

Crypto prices from Independent Reserve. No key required.

Agent Arena io.github.agentarenaleague/agent-arena

Paper trading only. 26 leagues for AI bots. Spot Crypto + Crypto 35 live. Register by MCP.

140+ pay-per-call agent tools: verifiable strategy track records, token verdicts, web, crypto data.

prime-refund-tools com.primesettlementrefund/prime-refund-tools

Amazon Prime refund tools: eligibility check, payment amount estimator, and claim deadline guide.

MoneyBug Shopify Monetization Intelligence io.github.kurious8282/moneybug-shopify-monetization-intelligence

Shopify app monetization: pricing, usage fees, percentage billing, and M&A fingerprints.

Hydracept com.hydracept/hydracept

Hosted MCP for Hydracept: discover capabilities, run jobs, receipts, BYOK or managed billing.

Read the crypto fear and greed index from alternative.me. No key required.

Polish National Bank data: FX tables, single currency rates, and gold prices. No key required.

Crypto prices from CEX.IO. No key required.

Korean crypto prices from Bithumb. No key required.

Be Sew Bizzy com.besewbizzy/shop

Search Be Sew Bizzy's quilt fabrics and sewing supplies: prices, sales, stock, classes and hours.

Crypto prices from Bitget. No key required.