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X402-Broker Global A2A, MCP & x402 Super-Marketplace

Official registry E-commerce

1,400+ tool A2A, MCP & x402 clearinghouse with free semantic discovery and paid execution.

Source code Website Documentation

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 x402-broker-global-a2a-mcp-x402-super-ma 'https://x402broker.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "x402-broker-global-a2a-mcp-x402-super-ma": {
            "type": "http",
            "url": "https://x402broker.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Assay — A2A & MCP Provider Assurance Observatory

Live Observatory: **https://assay-207908449630.us-central1.run.app**

Assay continuously probes remote MCP, A2A, and x402 endpoints to verify liveness, pin canonical SHA-256 tools/list schema hashes (detecting silent MCP Rug Pulls), and scan for prompt-injection tool poisoning before your agent pays or executes a tool.

MCP Endpoint

  • Streamable HTTP MCP: https://assay-207908449630.us-central1.run.app/mcp
  • Pre-Flight REST API: POST https://assay-207908449630.us-central1.run.app/v1/preflight
  • Live Leaderboard: GET https://assay-207908449630.us-central1.run.app/v1/leaderboard

Frequently asked questions

What is X402-Broker Global A2A, MCP & x402 Super-Marketplace?

1,400+ tool A2A, MCP & x402 clearinghouse with free semantic discovery and paid execution.

How do I install X402-Broker Global A2A, MCP & x402 Super-Marketplace?

It runs as a remote server. In Claude Code: claude mcp add --transport http x402-broker-global-a2a-mcp-x402-super-ma 'https://x402broker.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does X402-Broker Global A2A, MCP & x402 Super-Marketplace 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.

Is X402-Broker Global A2A, MCP & x402 Super-Marketplace open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains X402-Broker Global A2A, MCP & x402 Super-Marketplace?

It is published by robertoyanguas-ops. 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.