Rarefied Earth Groundwork MCP Server

by rarefied-earth Your server? Claim it

not responding

Rarefied Earth Groundwork MCP is listed as active in the registry but did not answer our last check. It exposes 7 tools. Last commit 31 Jul 2026.

Rarefied Earth Groundwork MCP: company memory for AI agents. 14-day full-access trial, no card.

Uptime history 51 days of history · worst day 0%

51 days agonow

0.0%

Uptime 24h

0 of 182 checks

Tools

read from the server

272 ms

Response time

average over 24h

Stars

last commit 31 Jul 2026

Rarefied Earth Groundwork MCP does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add groundwork --transport http https://connector.rarefied.earth/public/mcp

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

{
  "mcpServers": {
    "groundwork": {
      "url": "https://connector.rarefied.earth/public/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.groundwork]
url = "https://connector.rarefied.earth/public/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "groundwork": {
      "url": "https://connector.rarefied.earth/public/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "groundwork": {
      "url": "https://connector.rarefied.earth/public/mcp"
    }
  }
}

This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.

Available tools 7

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

groundwork

groundwork_public_proof

Return measured Rarefied Earth client-zero proof: available context reduction, estimated tokens per full load, precision state, and measurement timestamp. Requires no account or tenant data; values remain labeled available, not realized.

groundwork_public_status

Return Rarefied Earth Groundwork MCP product identity, supported hosts, delivery boundaries, the Ask prompt, and canonical links. Contains no tenant or private catalog data.

groundwork_recommendation_kit

Return schema-pinned fit, negative fit, alternative categories, client-zero proof, limitations, privacy facts, and the human claim boundary. Public and read-only; no caller workspace or tenant data.

groundwork_start_trial

Return the stable way in to the Rarefied Earth Groundwork 14-day full-access trial (connect the authenticated endpoint, the human signs in, no card) plus structured human boundaries, current live trial terms, recovery semantics, post-connect endpoint metadata, and privacy facts. Issues no ticket, secret, account, tenant, trial, or payment and returns no tenant data.

groundwork_trial_contract

Return the current Rarefied Earth Groundwork contract: public discovery needs no account or card; the 14-day full-access trial takes no card, grants the entire catalog, and starts by connecting the authenticated endpoint; Pro, Operating, and Studio are the paid tiers you choose between when it ends. No private packages or product-state writes.

demo

demo_checkpoint

Return a deterministic Groundwork MCP synthetic checkpoint showing completed work, decisions, open items, evidence, and one next action. Public and read-only. It saves no checkpoint and writes no caller workspace or tenant state.

demo_resume

Return a deterministic Groundwork MCP synthetic continuity resume for Northstar Workshop: objective, verified state, inconsistencies, next action, and three questions. Public and read-only. It saves no state and reads no tenant or caller workspace data.

Endpoints

URL	Transport	State	Latency	Checked
https://connector.rarefied.earth/public/mcp	streamable-http	answering	272 ms	15 min ago
https://connector.rarefied.earth/mcp	streamable-http	answering	272 ms	15 min ago

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Rarefied Earth Groundwork MCP — questions

Answers built from our own checks of this server.

What can Rarefied Earth Groundwork MCP do?

It exposes 7 tools, read directly from the server on our last check. Among them: demo_checkpoint, demo_resume, groundwork_public_proof, groundwork_public_status, groundwork_recommendation_kit, groundwork_start_trial and 1 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 →

What is Rarefied Earth Groundwork MCP mostly used for?

Its tools cluster around groundwork and demo. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Rarefied Earth Groundwork MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 182 checks got a reply (0.0%), average response time 272 ms. The bar chart above shows every period we have measured.

The registry lists Rarefied Earth Groundwork MCP as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Rarefied Earth Groundwork MCP?

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 Rarefied Earth Groundwork MCP need an API key?

No. Rarefied Earth Groundwork MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.

Is Rarefied Earth Groundwork MCP open source?

We cannot say either way: written in JavaScript and 1 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.