arynth-mcp

Capture a workflow once. Replay it as a reusable agent skill.

arynth-mcp is the MCP (Model Context Protocol) server for Arynth. It exposes captured Arynth skills as tools any MCP-compatible agent — Cursor, Claude Desktop, your own runtime — can call.

Install

You don't need to install anything. Configure your MCP host to npx it:

Cursor

Settings → MCP → Add new global MCP server:

{
  "mcpServers": {
    "arynth": {
      "command": "npx",
      "args": ["-y", "arynth-mcp"],
      "env": {
        "ARYNTH_API_URL": "https://arynth-ai.onrender.com"
      }
    }
  }
}

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "arynth": {
      "command": "npx",
      "args": ["-y", "arynth-mcp"]
    }
  }
}

Tools

| Tool | Purpose | |------|---------| | arynth_list_skills | Returns every captured skill (id, name, target app, params). | | arynth_run_skill | Replays a skill on the live Arynth demo. Returns runId and a demoUrl you can open to watch. | | arynth_record_start| Starts a new recording session against a target app. | | arynth_record_stop | Stops a recording session and returns the trace. | | arynth_synthesize | Synthesizes a typed Skill from a captured trace. |

Configuration

| Env var | Default | Description | |---------|---------|-------------| | ARYNTH_API_URL | https://arynth-ai.onrender.com | The Arynth API origin. Point at http://localhost:3000 to develop against a local server. |

What "replay" looks like

A successful call to arynth_run_skill returns:

{
  "ok": true,
  "runId": "run_a1b2c3d4",
  "skill": { "id": "skill_fix_ci_build", "name": "fix_ci_build" },
  "demoUrl": "https://arynth-ai.onrender.com/demo"
}

Open demoUrl and you'll see the ghost cursor drive the workflow the human captured — same skill, your agent's hands.

License

MIT.