x402-seller-mcp mcp_server
Pay-per-call MCP server. Exposes 33 API endpoints billed in USDC on Base via the x402 protocol — no subscription, no API key, no account. **Categories:** DeFi & crypto data (prices, TVL, yields, stablecoins), on-chain reads (gas, blocks — Base & Ethereum), public data (ECB FX rates, GitHub, npm, Hacker News, Wikipedia, DNS, RDAP), AI tasks (summarize, classify, translate, extract), web reading, web search. **Pricing:** $0.005–$0.02 per call. Without a wallet, each tool returns its price. With `BUYER_PRIVATE_KEY` set, the server pays and returns the result plus the transaction hash. Live endpoint: https://x402-seller-0ay3.onrender.com
- Link
- https://smithery.ai/servers/entreprisedaney33/x402-seller-mcp
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