# Corpus Plan

> Free SEO/GEO audits of public websites and AI answer-engine citation checks. No login or API key.

- name: co.corpushq.plan/corpus-plan
- version: 0.1.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/co.corpushq.plan%2Fcorpus-plan
- tools: https://api.protogrid.dev/v1/servers/co.corpushq.plan%2Fcorpus-plan/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "corpus-plan": {
      "type": "http",
      "url": "https://plan.corpushq.co/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-1d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 5 of 5 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 694 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 0 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 5, about 694 tokens to load them all
- tool set hash: 4191aa63358b089f7eb5b06b44b3f677
- badge: [![protogrid quality](https://protogrid.dev/badge/co.corpushq.plan/corpus-plan.svg)](https://protogrid.dev/servers/co.corpushq.plan/corpus-plan)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://plan.corpushq.co/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (5)

- `check_citations`: Use this when the user asks whether AI answer engines cite their website. Asks one answer engine (Perplexity) three customer-style questions written from the site's own pages and returns each question, the sites it cited, whether this site was one of them, and the date. A result for the same site from the last 24 hours is returned again instead of asking again.
- `describe_corpus_plan`: Return Corpus Plan's public SEO/GEO audit capabilities, product links, and safety notes.
- `get_public_report`: Read the stored public audit report for a saved Corpus Plan share slug. Unsaved reports require saving through the website first. Only public report facts are returned.
- `get_report_progress`: Read the current status and progress lines for a Corpus Plan audit behind a public report slug.
- `run_audit`: Use this when the user wants a website audited. Starts Corpus Plan's free audit of a public website (up to 20 pages of that site) and returns the overall score, the five pillar scores with AI citability first, the top three issues, the Product information document and the workspace link where the user can save the report. The same site audited from an AI assistant in the last 24 hours is returned again instead of re-crawled. If the result says running, call again with the same url.