How do I install x402 Seller?

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 Seller 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 50 (Fair). The formula is published on the methodology page.

MCPpedia

x402 Seller MCP Server

Name: x402 Seller MCP Server
Author: entreprisedaney33-rgb

Pay-per-call MCP tools (crypto/DeFi data, web reading, AI tasks) in USDC over x402 on Base.

Tools Versions Alternatives

Registryentreprisedaney33-rgb

50Fair

Install

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

{
  "mcpServers": {
    "entreprisedaney33-rgb-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402-seller-mcp@0.1.1"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "YOUR_BUYER_PRIVATE_KEY",
        "X402_ORIGIN": "https://x402-seller-0ay3.onrender.com"
      }
    }
  }
}

Install guide

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x402 Seller MCP Server | MCPpedia

Environment

Name	Required	Notes
BUYER_PRIVATE_KEY	No	EVM private key (0x...) of a throwaway wallet funded with a small amount of USDC on Base. Leave unset for explain-only mode (tool calls describe the 402 payment challenge instead of paying). Secret.
X402_ORIGIN	No	Which x402-compatible server to expose as MCP tools.

x402 Seller MCP Server

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