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AgentIndex

Official registry Search and web

Search 15K+ MCP services, A2A agents, and x402 APIs from 5 registries. Paid via x402 (USDC on Base).

Source code

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 agentindex 'https://agentndx-production.up.railway.app'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "agentindex": {
            "type": "http",
            "url": "https://agentndx-production.up.railway.app"
        }
    }
}

Frequently asked questions

What is AgentIndex?

Search 15K+ MCP services, A2A agents, and x402 APIs from 5 registries. Paid via x402 (USDC on Base).

How do I install AgentIndex?

It runs as a remote server. In Claude Code: claude mcp add --transport http agentindex 'https://agentndx-production.up.railway.app'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does AgentIndex 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 AgentIndex open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains AgentIndex?

It is published by agentndx. 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.