**Pay-per-call API marketplace on Base (USDC).** x402-market lets AI agents discover and invoke any listed API end-to-end with one tool call. The MCP server handles HTTP 402 payment challenges automatically using your wallet, so Claude (or any MCP client) pays for API calls on its own. ## How it works 1. `list_catalog` — discover available paid APIs in the marketplace 2. `get_listing` — inspect endpoint schema, pricing, and usage notes 3. `pay_and_call` — invoke the API en
x402-market
**Pay-per-call API marketplace on Base (USDC).** x402-market lets AI agents discover and invoke any listed API end-to-end with one tool call. The MCP server handles HTTP 402 payment challenges automatically using your wallet, so Claude (or any MCP client) pays for API calls on its own. ## How it works 1. `list_catalog` — discover available paid APIs in the marketplace 2. `get_listing` — inspect endpoint schema, pricing, and usage notes 3. `pay_and_call` — invoke the API end-to-end; pays the seller via x402 / USDC on Base if a 402 challenge is returned 4. `claim_refund` — auto-judge refund for failed calls or >30s upstream latency ## Setup - `MCP_BUYER_PRIVATE_KEY` (required): Hot wallet on Base mainnet with a small USDC + ETH balance. **Use a separate wallet, not your main one.** - `MCP_MAX_PRICE`: Hard cap per call (USDC). Default `1`. - Other params have safe defaults. ## Links - npm: `@x402-market/mcp-server` - GitHub: https://github.com/AsaiShota/x402-market - Marketplace AP
| Тип | MCP-сервер |
| Категория | MCP-серверы |
| Цена | бесплатно |
| Платформа | Командная строка |
| Системы | cli, api |
| Хостинг | cloud |
| Установка | mcp |
| Протоколы | mcp |
| Язык сайта | en |
| Вендор | lien-studio-akiyama |
| Просмотры | 8 |