MarsGeo MCP

MarsGeo provides an MCP server endpoint for generating SEO structured data including JSON-LD schema, robots.txt, sitemaps, hreflang, Open Graph, and meta tags, alongside tools for on-page audits and keyword analysis.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by MarsGeo

MCP endpoint (Streamable HTTP)

https://mars.cx/api/mcp

Vendor documentation

What its tools do

9 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (9)

run_marsgeo_tool
generate_faq_schema
generate_product_schema
generate_robots_txt
generate_sitemap
generate_hreflang
generate_open_graph
generate_meta_description
validate_json_ld

9 of 9 have a description · 0 of 9 declare behavior hints · 0 of 9 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 7, 2026, 4:47 AM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Generate JSON-LD schema for FAQs, articles, products, and reviews
Create robots.txt and XML sitemaps for various platforms
Generate Open Graph tags and meta descriptions
Run on-page SEO audits and check canonical tags

Source and maintenance

Community listingRegistry 1.0.0

mcp-registry: io.github.cnmars/marsgeo@1.0.0 Source repository

Maintenance checked: Nov 7, 2026, 12:20 AM UTC

Protocol and capabilities

Server: marsgeo 1.0.0
MCP protocol negotiated in check: 2024-11-05
Tools: 9 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  }
}

Tools

9 advertised

run_marsgeo_tool

Advertised by the server during the last successful anonymous check.

Run any MarsGeo SEO tool by slug. Supported: faq-schema-generator, article-schema-generator, product-schema-generator, how-to-schema-generator, breadcrumb-schema-generator, organization-schema-generator, robots-txt-generator, sitemap-generator, hreflang-generator, meta-description-generator, open-graph-generator, serp-snippet-preview, keyword-density-analyzer, schema-validator, meta-tag-extractor, heading-extractor, json-ld-extractor.

run_marsgeo_tool input schema

{
  "type": "object",
  "required": [
    "tool"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "input": {
      "type": "object",
      "additionalProperties": true
    }
  }
}

generate_faq_schema

Advertised by the server during the last successful anonymous check.

Generate FAQPage JSON-LD structured data from question/answer pairs.

generate_faq_schema input schema

{
  "type": "object",
  "required": [
    "items"
  ],
  "properties": {
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "q",
          "a"
        ],
        "properties": {
          "a": {
            "type": "string"
          },
          "q": {
            "type": "string"
          }
        }
      }
    }
  }
}

generate_product_schema

Advertised by the server during the last successful anonymous check.

Generate Product JSON-LD structured data.

generate_product_schema input schema

{
  "type": "object",
  "required": [
    "name",
    "price"
  ],
  "properties": {
    "name": {
      "type": "string"
    },
    "brand": {
      "type": "string"
    },
    "image": {
      "type": "string"
    },
    "price": {
      "type": "string"
    },
    "currency": {
      "type": "string"
    },
    "availability": {
      "type": "string"
    }
  }
}

generate_robots_txt

Advertised by the server during the last successful anonymous check.

Generate a robots.txt file with allow/disallow rules and an optional sitemap.

generate_robots_txt input schema

{
  "type": "object",
  "properties": {
    "allow": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "sitemap": {
      "type": "string"
    },
    "disallow": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  }
}

generate_sitemap

Advertised by the server during the last successful anonymous check.

Generate an XML sitemap from a list of URLs.

generate_sitemap input schema

{
  "type": "object",
  "required": [
    "urls"
  ],
  "properties": {
    "urls": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  }
}

generate_hreflang

Advertised by the server during the last successful anonymous check.

Generate reciprocal hreflang tags for a multilingual site.

generate_hreflang input schema

{
  "type": "object",
  "properties": {
    "entries": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "lang",
          "url"
        ],
        "properties": {
          "url": {
            "type": "string"
          },
          "lang": {
            "type": "string"
          }
        }
      }
    },
    "defaultUrl": {
      "type": "string"
    }
  }
}

generate_open_graph

Advertised by the server during the last successful anonymous check.

Generate Open Graph social-preview meta tags.

generate_open_graph input schema

{
  "type": "object",
  "required": [
    "title"
  ],
  "properties": {
    "url": {
      "type": "string"
    },
    "type": {
      "type": "string"
    },
    "image": {
      "type": "string"
    },
    "title": {
      "type": "string"
    },
    "description": {
      "type": "string"
    }
  }
}

generate_meta_description

Advertised by the server during the last successful anonymous check.

Trim and format a paragraph into a meta description within length limits.

generate_meta_description input schema

{
  "type": "object",
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string"
    }
  }
}

validate_json_ld

Advertised by the server during the last successful anonymous check.

Validate JSON-LD and return the pretty-printed block plus detected @type.

validate_json_ld input schema

{
  "type": "object",
  "required": [
    "json"
  ],
  "properties": {
    "json": {
      "type": "string"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 271 ms
95th percentile latency: 271 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 7, 2026, 4:47 AM UTC · probe · passed · 271 ms · metadata changed · 9 tool(s)

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 the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http marsgeo-mcp https://mars.cx/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 marsgeo-mcp --url https://mars.cx/api/mcp

Cursor

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

Cursor configuration

{
  "mcpServers": {
    "marsgeo-mcp": {
      "url": "https://mars.cx/api/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "marsgeo-mcp": {
      "type": "streamableHttp",
      "url": "https://mars.cx/api/mcp",
      "disabled": false
    }
  }
}

VS Code

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

VS Code configuration

{
  "servers": {
    "marsgeo-mcp": {
      "type": "http",
      "url": "https://mars.cx/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 marsgeo-mcp https://mars.cx/api/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://mars.cx/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": {
    "marsgeo-mcp": {
      "serverUrl": "https://mars.cx/api/mcp"
    }
  }
}

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