MCP server

Hosted endpoint (remote)

No install needed — point any MCP client at the live endpoint. Backed by our server-side tool engine and rate-limited.

https://mars.cx/api/mcp

Quick test:

curl -s -X POST https://mars.cx/api/mcp -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"generate_faq_schema","arguments":{"items":[{"q":"Is it free?","a":"Yes"}]}}}'

Claude config:

{
  "mcpServers": { "marsgeo": { "type": "http", "url": "https://mars.cx/api/mcp" } }
}

Local server (stdio)

For privacy or offline use, run the server yourself with your Pro API key.

git clone https://github.com/cnmars/MarsGeo cd MarsGeo/mcp npm install MARSGEO_API_KEY=mg_live_... node server.mjs

{
  "mcpServers": {
    "marsgeo": {
      "command": "node",
      "args": ["/absolute/path/to/MarsGeo/mcp/server.mjs"],
      "env": { "MARSGEO_API_KEY": "mg_live_..." }
    }
  }
}

Exposed tools

• run_marsgeo_tool — run any tool by slug
• article-schema-generator (via run_marsgeo_tool)
• how-to-schema-generator (via run_marsgeo_tool)
• breadcrumb-schema-generator (via run_marsgeo_tool)
• organization-schema-generator (via run_marsgeo_tool)
• serp-snippet-preview (via run_marsgeo_tool)
• keyword-density-analyzer (via run_marsgeo_tool)
• schema-validator (via run_marsgeo_tool)
• meta-tag-extractor (via run_marsgeo_tool)
• heading-extractor (via run_marsgeo_tool)
• json-ld-extractor (via run_marsgeo_tool)

Full API reference: /docs/api