x402 Merchant Check is a Model Context Protocol (MCP) server: Pre-payment merchant trust checks for x402 agents on Base and Solana. In practice that means any MCP-compatible AI assistant can call x402 Merchant Check's tools directly — the model decides when to use them in a conversation or agent run.
It's a hosted (remote) server — point your client at https://mcp.gradientdecisions.com/mcp and you're connected, with nothing to install locally. The current release is v1.0.0, with source at clevbot/merchant-check-mcp- on GitHub.
x402 Merchant Check is listed under Finance on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain x402 Merchant Check for gradientdecisions.com, claim this listing to verify ownership, earn the Verified badge, and keep the details current.