x402-market

Name: x402-market
Author: AsaiShota

MCP

by AsaiShota · v0.2.0-alpha.1

Let AI agents pay-per-call for any HTTP API via x402 on Base mainnet. One tool: pay_and_call.

mcplocal

MCP configuration

stdio

Command

npx -y @x402-market/mcp-server@0.2.0-alpha.1

Environment

MARKET_API_URL
Marketplace API base URL.
MCP_BUYER_PRIVATE_KEYsecret
Funded buyer wallet private key (0x-prefixed). Required for pay_and_call; read-only tools work without it.
BASE_RPC_URL
Base RPC endpoint. Defaults to Base mainnet public RPC; Alchemy/QuickNode recommended for higher rate limits.
BASE_CHAIN_ID
8453 = Base mainnet (default, matches live listings). 84532 = Base Sepolia testnet.
MCP_MAX_PRICE
Hard cap on per-call cost (USDC). Refuses to pay above this.

Browse here, install from the native macOS app — pick targets, fill env vars, and write configs safely.