MCP Server Directory

Production-proven Polymarket CLOB V2 trading and data. Fail-closed fills; keys stay local.

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

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

Vietnam stock MCP: TA signals, Z/F/M scores, foreign flow, whale detection. 2000+ VN stocks.

MCP server exposing cryptography library functionality

An MCP server that exposes the python-bitcoinlib API

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

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

JWT Decoder API io.github.Br0ski777/jwt-decoder

Decode JWT tokens — inspect header, payload, claims, expiry. x402 micropayment.

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.

WhatsApp booking, staff coordination, and invoice recovery for services.

Nexus Finance API — compliance audit, VaR/RWA risk, market quotes and case management.

QR Code Generator API io.github.Br0ski777/qr-code

Generate QR codes from text or URLs. Returns base64 PNG. x402 micropayment.

Regex Tester API io.github.Br0ski777/regex-generator

Test, validate and explain regular expressions with match highlighting. x402 micropayment.

Wallet Portfolio Tracker API io.github.Br0ski777/wallet-portfolio

Crypto wallet balances, ERC-20 tokens, USD values across Base and Ethereum. x402.

Route x402 payments, Pyrimid affiliate splits, and referral links. Vendor-neutral, adapter-based.

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

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

Giskard Search io.github.giskard09/search

Pay-per-use web search for AI agents. Lightning invoice, Ed25519 signature, karma discounts.

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

Wallet infrastructure for Ai agents. EVM + Solana. x402 payments. No KYC.

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.

convergealpha io.github.CrazymakER23/convergealpha

AI stock signal convergence � 13 sources, Bayesian scoring, verified outcomes.

agent-metering io.github.jdhart81/agent-metering

Usage metering + SLA accounting for agent services (the meter behind x402 micropayments).

Payment gateway for AI agents with tool discovery, provisioning, metering, and reliability tools.

MCP server for Datamuse word-finding API

MCP server for the National Bank of Belgium SDMX statistical API (221 dataflows).