Yes, Claude Agy is free to use.

How do I install Claude Agy?

Claude Agy is a local plugin. Install it using npm package: @pymodel/claude-agy-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Claude Agy safe to use?

Claude Agy was flagged by MCP Marketplace's security scan, scoring 4.8/10 (high risk). It has 3 high or critical findings to review. Review the security report on this page carefully before installing it.

What credentials does Claude Agy need?

Claude Agy requires the following credentials or environment variables: AGY_PATH, AGY_TIMEOUT, AGY_MAX_RUNTIME, AGY_MAX_OUTPUT_CHARS, AGY_DEFAULT_MODEL, AGY_ON_FAILURE. You can find setup instructions on the server detail page.

What AI apps work with Claude Agy?

Claude Agy uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Claude Agy MCP Server

by PyModel

Developer ToolsUse Caution4.8MCP RegistryLocal

Free

Server data from the Official MCP Registry

Delegate heavy tasks from Claude Code to the Antigravity CLI (Gemini) with quota-aware failover.

About

Delegate heavy tasks from Claude Code to the Antigravity CLI (Gemini) with quota-aware failover.

Security Report

4.8

Use Caution4.8High Risk

This is a well-structured MCP server that delegates heavy computational tasks to the Antigravity CLI (agy) via subprocess spawning. The codebase demonstrates solid security practices: proper error handling, no hardcoded credentials, safe process management with signal escalation, and comprehensive input validation via Zod schemas. Permissions are appropriately scoped to the server's stated purpose (spawning agy, reading files, managing subprocesses). Minor code quality observations exist but do not pose security risks. Supply chain analysis found 4 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

7 files analyzed · 9 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

env_vars

Check that this permission is expected for this type of plugin.

process_spawn

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

Shell Command Execution

Runs commands on your machine. Be cautious — only use if you trust this plugin.

What You'll Need

Set these up before or after installing:

Path to the agy binary (defaults to `agy` on PATH)Optional

Environment variable: AGY_PATH

Override the runtime ceiling for all tools, in seconds (use AGY_TIMEOUT_<TOOL> to override a single tool)Optional

Environment variable: AGY_TIMEOUT

Absolute runtime ceiling in seconds (default 3600); the bridge does not kill on inactivity, only on cancellation, quota exhaustion, or this ceilingOptional

Environment variable: AGY_MAX_RUNTIME

Truncation cap for tool output, in characters (default 50000)Optional

Environment variable: AGY_MAX_OUTPUT_CHARS

Fallback model when no chain entry is available (defaults to Gemini 3.6 Flash (High))Optional

Environment variable: AGY_DEFAULT_MODEL

Set to `strict` to instruct the calling agent not to absorb failed delegations (default `fallback`)Optional

Environment variable: AGY_ON_FAILURE

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-pymodel-claude-agy-mcp": {
      "env": {
        "AGY_PATH": "your-agy-path-here",
        "AGY_TIMEOUT": "your-agy-timeout-here",
        "AGY_ON_FAILURE": "your-agy-on-failure-here",
        "AGY_MAX_RUNTIME": "your-agy-max-runtime-here",
        "AGY_DEFAULT_MODEL": "your-agy-default-model-here",
        "AGY_MAX_OUTPUT_CHARS": "your-agy-max-output-chars-here"
      },
      "args": [
        "-y",
        "@pymodel/claude-agy-mcp"
      ],
      "command": "npx"
    }
  }
}

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Claude Agy MCP Server

About

Security Report

Findings (9)Action required

Permissions Required

What You'll Need

How to Install

Reviews

No reviews yet

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