{"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"io.github.xenarch-ai/xenarch-mcp","description":"Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2.","repository":{"url":"https://github.com/xenarch-ai/xenarch-mcp","source":"github"},"version":"1.3.1","websiteUrl":"https://xenarch.com","packages":[{"registryType":"npm","identifier":"@xenarch/agent-mcp","version":"1.3.1","transport":{"type":"stdio"},"environmentVariables":[{"description":"Wallet private key (hex, 0x-prefixed). Auto-generates on first run if omitted.","format":"string","isSecret":true,"name":"XENARCH_PRIVATE_KEY"},{"description":"Base RPC endpoint URL","format":"string","name":"XENARCH_RPC_URL"},{"description":"Network for payments (base or base-sepolia)","format":"string","name":"XENARCH_NETWORK"},{"description":"Local per-call payment cap in USDC (default 1.00). The only spending ceiling in standalone mode; set 0 to disable. Connect XENARCH_API_TOKEN for managed per-tx/daily/monthly caps.","format":"string","name":"XENARCH_MAX_PAYMENT_USD"}]},{"registryType":"npm","identifier":"@xenarch/agent-mcp","version":"1.1.0","transport":{"type":"streamable-http","url":"https://mcp.xenarch.dev/mcp"},"environmentVariables":[{"description":"Wallet private key (hex, 0x-prefixed). Auto-generates on first run if omitted.","format":"string","isSecret":true,"name":"XENARCH_PRIVATE_KEY"},{"description":"Base RPC endpoint URL","format":"string","name":"XENARCH_RPC_URL"},{"description":"Network for payments (base or base-sepolia)","format":"string","name":"XENARCH_NETWORK"},{"description":"Local per-call payment cap in USDC (default 1.00). The only spending ceiling in standalone mode; set 0 to disable. Connect XENARCH_API_TOKEN for managed per-tx/daily/monthly caps.","format":"string","name":"XENARCH_MAX_PAYMENT_USD"},{"description":"Port for HTTP server (default: 3000)","format":"string","name":"PORT"},{"description":"Set to 'http' to enable HTTP transport","isRequired":true,"format":"string","name":"TRANSPORT"}]}]},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","statusChangedAt":"2026-07-08T03:03:22.361521Z","publishedAt":"2026-07-08T03:03:22.361521Z","updatedAt":"2026-07-08T03:03:22.361521Z","isLatest":true}}}