Fabio662 MCP Server

by fabio662io.github.Fabio662/yieldagentx402v1.0.4

Non-custodial, policy-gated execution layer for AI agents on EVM chains, Bitcoin, Solana, NEAR and more, with MPC signing, TEE attestation and x402 settlement.

2Node.jsstdioofficial registry

context tax

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security

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cold start

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freshness

Slowing5mo ago

Install Fabio662 MCP server

claude mcp add fabio662 -e YAX_API_KEY='<yax-api-key>' -e YAX_AGENT_ID='<yax-agent-id>' -- npx -y agentx402-mcp-server

{
  "mcpServers": {
    "fabio662": {
      "command": "npx",
      "args": [
        "-y",
        "agentx402-mcp-server"
      ],
      "env": {
        "YAX_API_KEY": "<yax-api-key>",
        "YAX_AGENT_ID": "<yax-agent-id>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "fabio662": {
      "command": "npx",
      "args": [
        "-y",
        "agentx402-mcp-server"
      ],
      "env": {
        "YAX_API_KEY": "<yax-api-key>",
        "YAX_AGENT_ID": "<yax-agent-id>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "fabio662": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "agentx402-mcp-server"
      ],
      "env": {
        "YAX_API_KEY": "<yax-api-key>",
        "YAX_AGENT_ID": "<yax-agent-id>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "fabio662": {
      "command": "npx",
      "args": [
        "-y",
        "agentx402-mcp-server"
      ],
      "env": {
        "YAX_API_KEY": "<yax-api-key>",
        "YAX_AGENT_ID": "<yax-agent-id>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
YAX_API_KEY	yes	yes	YieldAgentX402 API key from https://yieldagentx402.app/apply
YAX_AGENT_ID	yes	—	Your agent ID from the dashboard.
YAX_MCP_ENDPOINT	—	—	Optional full MCP endpoint override (default: https://api.yieldagentx402.app/mcp).

Freshness

Slowing — last maintenance signal 5mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-05-19 · 5mo ago · GitHub
Latest release
2026-05-18 · 5mo ago · GitHub · v1.0.3
Package published
no data · npm/PyPI
Registry entry updated
2026-05-19 · 5mo ago · official registry · v1.0.4

FAQ

›How do I install the Fabio662 MCP server in Claude Code?

Run: claude mcp add fabio662 -e YAX_API_KEY='<yax-api-key>' -e YAX_AGENT_ID='<yax-agent-id>' -- npx -y agentx402-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Fabio662 require an API key?

Yes. It expects YAX_API_KEY, YAX_AGENT_ID, of which 1 is a secret.

›Can I use Fabio662 as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Fabio662 in the official MCP registry?

Yes, as io.github.Fabio662/yieldagentx402.