How do I install x402-market?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is x402-market official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 45 (Fair). The formula is published on the methodology page.

MCPpedia

x402-market MCP Server | MCPpedia

x402-market MCP Server

Name: x402-market MCP Server
Author: asaishota

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

Tools Versions Alternatives

Registryasaishota

45Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "asaishota-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-market/mcp-server@0.2.0-alpha.1"
      ],
      "env": {
        "MARKET_API_URL": "https://x402-market-api.lien-studio-akiyama.workers.dev",
        "MCP_BUYER_PRIVATE_KEY": "YOUR_MCP_BUYER_PRIVATE_KEY",
        "BASE_RPC_URL": "https://mainnet.base.org",
        "BASE_CHAIN_ID": "8453",
        "MCP_MAX_PRICE": "1.0"
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
MARKET_API_URL	No	Marketplace API base URL.
MCP_BUYER_PRIVATE_KEY	No	Funded buyer wallet private key (0x-prefixed). Required for pay_and_call; read-only tools work without it. Secret.
BASE_RPC_URL	No	Base RPC endpoint. Defaults to Base mainnet public RPC; Alchemy/QuickNode recommended for higher rate limits.
BASE_CHAIN_ID	No	8453 = Base mainnet (default, matches live listings). 84532 = Base Sepolia testnet.
MCP_MAX_PRICE	No	Hard cap on per-call cost (USDC). Refuses to pay above this.

x402-market MCP Server

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