Astroclaw MCP

An official MCP server providing deterministic celestial alignment data and daily horoscopes for autonomous AI agents. It allows agents to fetch zodiac-based forecasts, identify signs by birthdate or name, and list available signs, enabling playful behavioral variance and creative tone adjustments in agent responses based on real astronomical data.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-18Operated by Astroclaw

MCP endpoint (Streamable HTTP)

https://www.astroclaw.xyz/api/mcp

Vendor documentation

What you can do with it

Fetch today's horoscope for a specific zodiac sign
Identify a zodiac sign using a birthdate
List all available zodiac signs
Adjust agent response tone with cosmic references

Tools advertised by the last live check:

get_horoscope
find_sign
list_signs

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http astroclaw-mcp https://www.astroclaw.xyz/api/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add astroclaw-mcp --url https://www.astroclaw.xyz/api/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable astroclaw-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "astroclaw-mcp": {
      "url": "https://www.astroclaw.xyz/api/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "astroclaw-mcp": {
      "type": "streamableHttp",
      "url": "https://www.astroclaw.xyz/api/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start astroclaw-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "astroclaw-mcp": {
      "type": "http",
      "url": "https://www.astroclaw.xyz/api/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http astroclaw-mcp https://www.astroclaw.xyz/api/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "astroclaw-mcp": {
      "url": "https://www.astroclaw.xyz/api/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "astroclaw-mcp": {
      "serverUrl": "https://www.astroclaw.xyz/api/mcp"
    }
  }
}

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