x402 Seller MCP Server: Install & Setup

Install x402 Seller in Claude Code

Claude Code

claude mcp add x402-seller -- npx -y x402-seller-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "x402-seller": {
      "command": "npx",
      "args": [
        "-y",
        "x402-seller-mcp"
      ]
    }
  }
}

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

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add x402-seller -- npx -y x402-seller-mcp

UltraStarz/x402-sms-mcp

Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.

ak10082247-max/x402-solana-base-sniper-bot

Read-only pre-trade honeypot simulation and DEX alpha oracle for Solana and Base.

x402-video/mcp

Pay-per-call AI video generation (Seedance text-to-video) via x402. USDC on Base, no API key.

overwatchdominion-stack/x402-sec-defi-data-mcp

25 pay-per-call x402 tools (USDC on Base): SEC EDGAR, 8-K feed, DeFi math, Bittensor.

AsaiShota/x402-market

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

forgemeshlabs/x402-scan-mcp

x402 Endpoint Scanner — a free local health probe for x402 paid endpoints as an MCP server.