Rarefied Earth Groundwork MCP

Name: Rarefied Earth Groundwork MCP
Author: Rarefied-Earth

by Rarefied-Earthversion 1.7.1i★ –iRuns in the cloud

Registry nameio.github.Rarefied-Earth/groundwork

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://connector.rarefied.earth/public/mcp

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "groundwork": {
      "type": "http",
      "url": "https://connector.rarefied.earth/public/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://connector.rarefied.earth/public/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Rarefied-Earth, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

More stars than 0% of the other 7251 servers in this category
Published to the registry more recently than 26% of the other 7251 servers in this category
Basic checks equal to or better than 100% of the other 7251 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Rarefied Earth Groundwork MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.7.1) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated today

Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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 .

Canonical public docs for Groundwork (Rarefied Earth org). Personal mirror for profile pins: saltymaverick/groundwork.

For autonomous agents

Read [docs/FOR_AGENTS.md](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:

Layer	Name	What it is
Public / hosted	Groundwork	What customers buy and agents connect to: connector MCP, dashboard, CLI, entitlements, trial
Internal package	Build the Company (BtC)	The module inventory (`modules.json`), module READMEs, deployment playbook, filesystem installer

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

Surface	Role
Connector (MCP)	Live company state at `connector.rarefied.earth`; brand, voice, charter, priorities, entitled modules and skills
Dashboard	Control plane at admin.rarefied.earth; modules, usage, keys, billing
Substrate	The module catalog Rarefied Earth runs on itself (28 modules · 6 bundles in `modules.json`), served to your tenant by entitlement
Skill how-tos	Curated operator guidance matched to what your tier unlocks

Not a chatbot. Not a second workspace. Your files remain the source of truth; the dashboard is a control plane.

connector.rarefied.earth/mcp   (read-only, tenant-scoped)

├── account + entitlement ├── module catalog (from modules.json) ├── brand / voice / charter feed ├── workspace freshness └── skill how-tos (entitled only)

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:

openclaw mcp add groundwork \

--url https://connector.rarefied.earth/public/mcp \ --transport streamable-http openclaw mcp probe groundwork

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:

Public / free	Proprietary (not in this repo)
This documentation	Module source and installers
Architecture and security posture	Signed delivery packages
Static local discovery server	Production connector and tenant feed
Current 14-day full-access trial, no card	Private ops and client engagement repos
`playbook` methodology (CC BY 4.0)	Tenant credentials and runtime

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:

curl -fsSL https://raw.githubusercontent.com/Rarefied-Earth/groundwork/main/scripts/groundwork_ten_second.py | python3 -

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:

node benchmark/run.mjs --json

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:

npx --yes @rarefied-earth/groundwork-discovery-mcp

From a clone:

npm ci

npm start

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

1. Open the human claim page       →  https://rarefied.earth/groundwork/claim/

Connect MCP in your client → token from your dashboard (endpoint /mcp)
Ask: company_status → full operating picture
Ask: get_brand / get_voice_rules before any branded draft

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)

Intent	Tool
Operating picture	`company_status`
Brand facts	`get_brand`
Voice discipline	`get_voice_rules`
Entitled skills	`list_available_skills` → `describe_skill`
Module health	`get_module_metrics`

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.

Tier	Modules (read-only feed)	Founding rate
Pro	9	$49 / mo
Operating	19	$149 / mo
Studio	27 (full)	$299 / mo

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

├── README.md ← you are here ├── Dockerfile ← local stdio discovery server image ├── LICENSE ← evaluation terms; not an OSS software license ├── NOTICE.md ← proprietary boundaries ├── package.json ← Node 22 local discovery package ├── server.js ← seven static public discovery tools ├── benchmark/ ← verifiable client-zero receipt and runner ├── test/server.test.js ← stdio introspection + tool-call smoke ├── assets/banner.png ← brand banner └── docs/ ├── GETTING_STARTED.md ← trial + MCP connect ├── SECURITY.md ← data posture + vulnerability contact └── MAINTENANCE.md ← keep docs in sync with modules.json

Personal pin mirror: saltymaverick/groundwork

Link	What it is
rarefied.earth/groundwork	Product, trial, pricing
admin.rarefied.earth	Tenant dashboard
Rarefied-Earth/playbook	Public operating methodology

| Rarefied-Earth/chloe | Internal R&D framing (separate

Only the beginning is shown; read the rest in the repo

Rarefied Earth Groundwork MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

For autonomous agents

Groundwork and Build the Company are the same system

Why this exists

What you get

Works with any MCP-compatible client

Free to evaluate. Production source stays closed.

Quick start

0. Ten seconds, no account (recommended first)

Local registry demo

1. Then connect your company

Agent tools (once connected)

Pricing (founding rates)

How Rarefied Earth builds it

Repository map

Related