Marsgeo MCP Server

by cnmars Your server? Claim it

answering

Marsgeo is answering right now. Last checked 14 min ago. It exposes 9 tools.

Generate SEO structured data: JSON-LD schema, robots.txt, sitemaps, hreflang, Open Graph, meta.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 8 days of history

8 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

462 ms

Response time

average over 24h

open, no key

Access

streamable-http

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

[mcp_servers.marsgeo]
url = "https://mars.cx/api/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

generate

generate_faq_schema

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

generate_hreflang

Generate reciprocal hreflang tags for a multilingual site.

generate_meta_description

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

generate_open_graph

Generate Open Graph social-preview meta tags.

generate_product_schema

Generate Product JSON-LD structured data.

generate_robots_txt

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

generate_sitemap

Generate an XML sitemap from a list of URLs.

marsgeo

run_marsgeo_tool

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.

validate

validate_json_ld

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

Endpoints

URL	Transport	State	Latency	Checked
https://mars.cx/api/mcp	streamable-http	answering	567 ms	14 min ago

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Marsgeo — questions

Answers built from our own checks of this server.

What can Marsgeo do?

It exposes 9 tools, read directly from the server on our last check. Among them: generate_faq_schema, generate_hreflang, generate_meta_description, generate_open_graph, generate_product_schema, generate_robots_txt and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Marsgeo working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 462 ms. The bar chart above shows every period we have measured.

Is Marsgeo still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect Marsgeo?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Marsgeo need an API key?

No. Marsgeo completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Marsgeo?

It answers our handshake in 462 ms on average, which is faster than 29% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.