MCP Server Directory

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

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

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

OnchainAI io.github.Coinyak/onchainai

Crypto tool MCP: search/trust/install-risk. Remote tools/call is x402 paid.

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

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

An MCP server that provides Bitcoin price data from Binance API

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

clawshow-mcp-server io.github.jason2016/clawshow-mcp-server

Instant Backend for SMBs: pages, payments, eSign AES eIDAS, notifications, inventory, reports

MCP server for smart contract ABIs and on-chain data from EVM and Solana via Crypto APIs

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

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

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

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

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

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

Uniswap - 17 tools for swap quotes, liquidity pools, and trading data

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

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

Single MCP server for Belgian public transport, statistics, open data, and geospatial services.

Classic poetry search and discovery via PoetryDB.

KTA-Oracle io.github.Elemzir/kta-oracle

Live KTA rates, market data, payment rails, AML/VAT compliance, SDK snippets. 16 tools.

CalmActiva io.github.langhoormarchal-beep/calmactiva-catalog

Realtime CBD product catalog, prices, stock and FAQ from CalmActiva.

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

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

griffnode com.griffnode/griffnode

Non-custodial crypto payments for AI assistants: balances, payments, and create payment links.

x402 payment wrapper for AI Agents and MCP Servers. USDC settlements on Base L2.

Non-custodial Bitcoin Lightning (LDK) wallet for AI agents — pays L402 APIs from CLI or MCP.

Play Chess, Go, Trading & more against AI agents on Agent Arcade with Elo rankings