x402 Crypto MCP Server

MCP server that aggregates 9 x402 crypto services as tools for AI agents: prices, sentiment, funding rates, technical indicators, DeFi yields, gas prices, pool metrics, and fresh market discovery.

Tools (STDIO Transport)

| Tool | Description | Service | |------|-------------|---------| | crypto_prices | Live USD prices for 20+ tokens | multi-chain-price-oracle | | market_sentiment | Fear & Greed index + global market metrics | crypto-market-sentiment | | funding_rate | Perp funding rate from Binance USDT futures | crypto-market-sentiment | | technical_indicators | RSI, MACD, EMA, SMA, volatility, ATR + signals | technical-indicators-oracle | | market_overview | Combined: prices + sentiment + funding in one call | all 3 services | | defi_yields | Top DeFi yields across 40+ chains (15,000+ pools) | defi-yield-aggregator | | gas_price | Gas prices on 7 EVM chains (gwei/wei) | multi-chain-gas-oracle | | yield_pool_metrics | APY/TVL snapshots for Aave V3 / Uniswap V3 pools | yield-pool-watcher | | fresh_markets | New AMM pairs in the last N minutes | fresh-markets-watch |

Tools (HTTP Transport - Vercel/Smithery)

| Tool | Description | Service | |------|-------------|---------| | get_price | Get current price for any token on supported chains | multi-chain-price-oracle | | get_market_sentiment | Fear & Greed Index (Alternative.me) | crypto-market-sentiment | | get_funding_rates | Perpetual funding rates across exchanges | crypto-market-sentiment | | get_technical_indicators | RSI, MACD, EMA, SMA for any symbol/timeframe | technical-indicators-oracle | | get_defi_yields | Supply/borrow APY across protocols | defi-yield-aggregator | | get_gas_price | EIP-1559 gas fees for EVM chains | multi-chain-gas-oracle | | get_multi_chain_gas | Gas prices for multiple EVM chains at once | multi-chain-gas-oracle | | get_pool_metrics | Yield pool APY/TVL/fee metrics across DEXes | yield-pool-watcher | | get_pool_alerts | Pool alerts (APY spikes, new pools, TVL changes) | yield-pool-watcher | | scan_new_pairs | Discover new AMM pairs on DEXes | fresh-markets-watch |

Install

npx x402-crypto-mcp

Or globally:

npm install -g x402-crypto-mcp

Use in Claude Desktop / Cursor / any MCP client

{
  "mcpServers": {
    "x402-crypto": {
      "command": "npx",
      "args": ["x402-crypto-mcp"]
    }
  }
}

For HTTP transport (Vercel/Smithery):

{
  "mcpServers": {
    "x402-crypto": {
      "url": "https://x402-mcp-server-two.vercel.app/api/mcp"
    }
  }
}

x402 Payments

All backend services use x402 pay-per-call on Base mainnet (USDC). The MCP server returns 402 challenges with payment details when you need to pay. Your agent must handle x402 payments to access the data.

Data Sources

• CoinGecko (prices) — free, 60s cache
• Binance (funding rates, klines) — free
• Alternative.me (Fear & Greed) — free
• DeFiLlama (yields) — free, 5min cache
• Public RPCs (gas) — free, 30s cache
• The Graph (pool metrics) — free
• EVM RPCs (new pairs) — free

GitHub

https://github.com/yunaremaia/x402-crypto-mcp