MCP Server Directory

Free invoice generator — create pre-filled invoice URLs with taxes, discounts, and 14 languages.

Increase MCP by usefulapi io.usefulapi/increase

Read-only Increase banking observability plus one safe non-money-moving write, for AI agents.

Smart contract security for AI agents — verify, monitor, freeze, x402 payments

signaldaemon io.github.bevanding/signaldaemon

Narrative & signal intelligence for AI agents: crypto/AI/macro convergence & divergence.

aethereum io.github.br9704/aethereum

The team layer for AI coding agents: shared contracts, collision alerts, E2EE sessions.

CrossFin io.github.bubilife1202/crossfin

AI agent access to Asian crypto markets. Korean exchange routing and x402 paid APIs.

Airdrop Checker API io.github.Br0ski777/airdrop-checker

Check wallet eligibility for active crypto airdrops — LayerZero, EigenLayer, Scroll. x402.

MCP server for Stark Bank — transfers, boletos, invoices, Pix, balance

ResearchSprint io.github.conversiondigital-cmyk/research-sprint

AI research reports: market analysis, competitor intel, blog posts. USDC payment.

Fact Checker API io.github.Br0ski777/fact-checker

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

Agentry — The Trust Layer for the Agent Economy io.github.cthulhutoo/agentry

Agent registry with Nostr identity, reputation, escrow, observability, and Lightning payments.

JSON Validator API io.github.Br0ski777/json-validator

JSON syntax validation, JSON Schema checking, structure stats. x402 micropayment.

LSTM stock predictions with +15.92% alpha over S&P 500. 10-day forecasts & portfolio analysis.

clawmerchants-mcp-gateway io.github.danielxri/clawmerchants-mcp-gateway

MCP Gateway: wrap any MCP server with cold-start retries, uptime SLA, and per-execution MPP billing.

x402-solana io.github.digitalweb33333-creator/x402-solana

x402 paid API tools for AI agents on Solana: crypto safety, market data, KYB/AML verification.

Shopify Catalog Monitor io.github.dizzyvinci/shopify-catalog-monitor

Track price drops, stock-outs, restocks, and new/removed products across Shopify stores.

Unit Converter API io.github.Br0ski777/unit-converter

Unit conversion — length, weight, temperature, volume, speed, data. x402 micropayment.

Word Counter API io.github.Br0ski777/word-counter

Count words, characters, sentences, paragraphs, reading time. x402 micropayment.

Gate Exchange MCP io.github.gateio-dev/gate-exchange

OAuth Gate exchange MCP for CEX trading, account, wallet, unified account, and sub-account.

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

Gas Fee Predictor io.github.higherbeing/gasfeepredictor-mcp

Live Ethereum and L2 gas fees: current gas, cheapest L2, forecast, ETH price, cost estimates.

Open Identity Standard for AI Agents — DID, Agent Cards, delegation, reputation, payment & escrow

AI HUNTERZ — Autonomous Crypto Intelligence io.github.hunterzai16z/ai-hunterz

49 crypto intelligence APIs. Whale tracking, DeFi yields, alpha signals. Pay in USDC on Base.

mcp-fx-audit io.github.iPAYX-Technologies/mcp-fx-audit

FX forensic audit MCP. Detects hidden bank markups on cross-border payments. FINTRAC MSB.