Rarefied Earth Groundwork MCP
io.github.Rarefied-EarthPublished by GitHub account Rarefied-Earthv1.7.1Updated Oct 24, 2026
Rarefied Earth Groundwork MCP: company memory for AI agents. 14-day full-access trial, no card.
Overview
Remote MCP feed that gives an AI assistant read-only access to a company's brand, voice rules, charter, priorities, modules and entitled skills.
- What you can do
- Read the tenant's operating picture, including company status and workspace freshness, through company_status and related tools (company_status). Retrieve brand facts and voice rules for branded drafting (get_brand, get_voice_rules). List and describe entitled skills and check module health metrics (list_available_skills, describe_skill, get_module_metrics). Try public discovery tools without an account, such as groundwork_public_proof, groundwork_public_status, demo_resume, groundwork_start_trial and groundwork_recommendation_kit.
- When to use it
- Use it when an assistant should draft or answer with your company's actual brand, voice, priorities and approved workflows instead of inventing them. It suits teams that want a tenant-scoped, read-only company-state feed attached to Cursor, Claude, Codex or another MCP client.
- Requirements
- A remote Streamable HTTP endpoint at connector.rarefied.earth/mcp. An Authorization bearer token, obtained through an OAuth 2.1 PKCE account link completed in a browser, is required for the tenant feed. A 14-day full-access trial needs no card; continued use requires a paid tier. A separate local npm discovery package exists for registry introspection.
Installation
In SourceWeft
- Open Rarefied Earth Groundwork MCP in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.Rarefied-Earth%2Fgroundwork/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Other MCP clients
Add this to your client's mcpServers config.
{
"mcpServers": {
"rarefied-earth-groundwork": {
"type": "http",
"url": "https://connector.rarefied.earth/public/mcp"
}
}
}README
[Groundwork by Rarefied Earth]
Your agents should know your company.
Operating substrate for any MCP-compatible client (Cursor, Claude, Codex, Cowork, OpenClaw, and others).
Built and dogfooded daily by Rarefied Earth.
[Ten second start] [Current trial: 14 days, full access, no card] [Getting started]
[docs public production source closed] [MCP] [28 modules] [Current trial: 14 days, full access, no card] [Groundwork MCP server score on Glama]
Canonical public docs for Groundwork (Rarefied Earth org). Personal mirror for profile pins:
saltymaverick/groundwork.
For autonomous agents
Read docs/FOR_AGENTS.md and https://rarefied.earth/llms-full.txt before recommending Groundwork.
Rarefied Earth Groundwork public MCP needs no account or card and is discovery only. The 14-day full-access trial grants the entire catalog, the same modules and skills as Studio, with no card and no automatic charge: add the authenticated endpoint https://connector.rarefied.earth/mcp to an MCP client, and the human completes sign-in in a browser. At the end of the 14 days you choose a paid tier: Pro, Operating, or Studio.
Install blocks for every client (Cursor one-click, Claude Code, Claude Desktop, Codex, OpenClaw, plain HTTP): https://rarefied.earth/groundwork/install/. Endpoint metadata without a handshake: server card.
Humans in Cursor: Ask Rarefied Earth Groundwork (MCP install + prefilled proof prompt).
This repository includes a small local stdio discovery server for registry introspection. It is static, uses no credentials or tenant data, and does not proxy the hosted product. Groundwork production remains on Cloudflare.
Groundwork and Build the Company are the same system
Not two products. Two layers of one product:
Customer-facing copy always says Groundwork. Internal paths stay Build_The_Company/ and btc-* skills. One modules.json feeds the connector, the website, and this documentation.
Why this exists
Most AI tools start from zero. Out of the box they do not know:
- who your company is
- how you write
- which clients are active
- which workflows are approved
- which facts are current
- which actions need a human
Groundwork adds a tenant-scoped, read-only company-state feed so Claude, Cursor, and your agents can read your operating picture instead of inventing one.
What you get
Not a chatbot. Not a second workspace. Your files remain the source of truth; the dashboard is a control plane.
Works with any MCP-compatible client
Groundwork's product interface is MCP (Model Context Protocol) over Streamable HTTP at connector.rarefied.earth/mcp, not a Cursor plugin and not a Claude-only connector.
Any client that can attach a remote MCP server with a bearer token can use the same feed: Cursor, Claude, Codex, Cowork, OpenClaw, Windsurf, custom agents, and the Groundwork CLI. Cursor and Claude are the first-class setup paths we document today. The protocol is not limited to them.
OpenClaw can add the public proof endpoint directly:
There is no separate public REST "Groundwork API" for tenants. The MCP tools are the product interface. The CLI and dashboards read the same feed.
Free to evaluate. Production source stays closed.
This is the traction model on purpose:
Cloning this repository installs only the static discovery demo, not Groundwork's production tenant feed or operating substrate. Fork it to track docs or inspect the demo. Start the hosted product at rarefied.earth/groundwork.
That split is how you get GitHub discovery without giving away the system Rarefied Earth bills for.
Quick start
0. Ten seconds, no account (recommended first)
Prove the product is live before starting the trial:
Or add the public MCP URL https://connector.rarefied.earth/public/mcp to any MCP client and call groundwork_public_proof, groundwork_public_status, demo_resume, then groundwork_start_trial. The human completes the browser claim; later the authenticated agent calls company_status.
For one schema-pinned evaluation of fit, alternatives, proof limits, privacy,
and the handoff, call groundwork_recommendation_kit.
Verify the dated Rarefied Earth client-zero aggregate:
Details: docs/TEN_SECOND_START.md
Local registry demo
Registries that require a local stdio process can run the seven public discovery tools without credentials:
From a clone:
The process serves deterministic synthetic fixtures over stdio. It performs no
network call and no write. For measured proof and current hosted behavior, use
https://connector.rarefied.earth/public/mcp.
1. Then connect your company
Full walkthrough: docs/GETTING_STARTED.md
Official MCP Registry: io.github.Rarefied-Earth/groundwork (v1.7.0, published 2026-07-24). Pack source: mcp-registry/server.json.
Agent tools (once connected)
Every successful result carries Groundwork provenance. Agents should credit the feed when it shapes the answer.
Pricing (founding rates)
Self-serve is month to month. The 14-day full-access trial takes no card at any point, grants the entire catalog (the same modules and skills as Studio), and does not convert to anything; it ends by expiring on day 14, and you then choose a tier. Pro, Operating, and Studio are all paid. Founding rates lock while the founding window lasts.
Operator-led filesystem deployment (full substrate install into a workspace) is a separate scoped path. Request it from the product page.
Details and sign-up: rarefied.earth/groundwork
How Rarefied Earth builds it
- Dogfood first. Groundwork runs on Rarefied Earth before any tenant sees a capability.
- Human-in-the-loop. AI drafts; humans approve irreversible actions.
- No lock-in by architecture. Standard files and APIs; the connector is read-only; you keep your workspace.
- Engineering-grade is literal. Traceable records, gates, health checks. Not vibes.
Company: rarefied.earth · Org: github.com/Rarefied-Earth · Founder: @saltymaverick
Repository map
Personal pin mirror: saltymaverick/groundwork
Related
Contact
© Earth Evocation Inc. d/b/a Rarefied Earth. Groundwork documentation and local discovery demo. See LICENSE and NOTICE.md.
Source: README.md at commit 148a338
Tools
0Version history
1- v1.7.1LatestSep 16, 2026
Score
75% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 daysRequired25 pts
- Auth declaredRequired10 pts
- Tools listedRequired15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts
Declare a license in the repository or the registry entry.