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Block402

Official registry Finance and payments

Bitcoin + Ethereum RPC for AI agents. 44 tools. x402 payments in USDC on Base mainnet.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http block402 'https://api.block402.xyz/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "block402": {
            "type": "http",
            "url": "https://api.block402.xyz/mcp"
        }
    }
}

Frequently asked questions

What is Block402?

Bitcoin + Ethereum RPC for AI agents. 44 tools. x402 payments in USDC on Base mainnet.

How do I install Block402?

It runs as a remote server. In Claude Code: claude mcp add --transport http block402 'https://api.block402.xyz/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Block402 need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains Block402?

It is published by xyz.block402. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.