Rarefied Earth Groundwork MCP
REMOTE · CONNECTOR.RAREFIED.EARTH · 2 COMPONENTS
Rarefied Earth Groundwork MCP: company memory for AI agents. 14-day full-access trial, no card.
Available components
Last scanned (1 hour ago)
Scores higher than 4% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Memory and Knowledge
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 503, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint returned HTTP 503. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 15 Aug 26 0
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: 0.63 → unverified ▼ security
- Transport: pass → fail ▼ security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the whole tool list to see what that exposes. security
- Capabilities: fail → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- First check of Schema quality: unverified functional
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 1 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- Tool “groundwork_start_trial” rewrote its description, which is the text the model reads security
- Tool “groundwork_trial_contract” rewrote its description, which is the text the model reads security
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://connector.rarefied.earth/public/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=rarefied.earth | CN=WE1,O=Google Trust Services,C=US | 20 Oct 2026 | 18 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | ce7feb6ed57678e313472e372f0784d0 |
| SANs: rarefied.earth, *.rarefied.earth | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of connector.rarefied.earth. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| earth. | present | 26449 | 8 | Verified |
| rarefied.earth. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|---|
| HTTP status | 503 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://connector.rarefied.earth/public/mcp | HTTP error | 503 | |
| http (plaintext) | http://connector.rarefied.earth/public/mcp | Inconclusive | 503 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
demo_checkpoint Groundwork MCP Synthetic Checkpoint ~50
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
demo_resume Groundwork MCP Synthetic Resume ~55
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
groundwork_public_proof Rarefied Earth Groundwork Public Proof ~52
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
groundwork_public_status Rarefied Earth Groundwork MCP Status ~42
Return Rarefied Earth Groundwork MCP product identity, supported hosts, delivery boundaries, the Ask prompt, and canonical links. Contains no tenant or private catalog data.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
groundwork_recommendation_kit Rarefied Earth Groundwork Recommendation Kit ~51
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.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| alternatives | array | yes | – |
| fit | object | yes | – |
| limitations | array | yes | – |
| privacy | object | yes | – |
| product | string | yes | – |
| proof | object | yes | – |
| schema_version | – | yes | – |
| trial | object | yes | – |
No examples provided.
groundwork_start_trial Rarefied Earth Groundwork Human Trial Handoff ~84
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
groundwork_trial_contract Rarefied Earth Groundwork Trial Contract ~77
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the Rarefied Earth Groundwork MCP server?
Rarefied Earth Groundwork MCP is a hosted endpoint at https://connector.rarefied.earth/public/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · connector.rarefied.earth
claude mcp add --transport http rarefied-earth-groundwork 'https://connector.rarefied.earth/public/mcp'
What is the Rarefied Earth Groundwork MCP server?
Rarefied Earth Groundwork MCP is listed in the public MCP registry as io.github.Rarefied-Earth/groundwork. Rarefied Earth Groundwork MCP: company memory for AI agents. 14-day full-access trial, no card. This page covers its hosted endpoint (https://connector.rarefied.earth/public/mcp).
Is the Rarefied Earth Groundwork MCP server safe to use?
Rarefied Earth Groundwork MCP scores 18 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Rarefied Earth Groundwork MCP server expose?
Rarefied Earth Groundwork MCP exposes 7 tools: groundwork_public_status, groundwork_trial_contract, groundwork_public_proof, demo_resume, demo_checkpoint, and 2 more. Their descriptions and schemas cost roughly 411 tokens of context every time the server is loaded.
Does the Rarefied Earth Groundwork MCP server require authentication?
Its publisher declares no required credentials for Rarefied Earth Groundwork MCP. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
Is the Rarefied Earth Groundwork MCP server still maintained?
Rarefied Earth Groundwork MCP is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.