MCP.Market

KnownGate MCP server

online · 100% uptime
by knowngate.com·com.knowngate/verify·v0.1.0
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Food verification for people and AI agents: evidence-backed verdicts, with sources and dates.

B75/100grade B
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Safety scan
B75/100

full report

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If you have run it, two minutes of your experience saves the next person an afternoon.

KnownGate tools (4)

write = sends, deletes, buys or posts
  • check_itemFree

    Rule one food subject against the household premise (restrictions, thresholds, or both). Needs a key (Authorization: Bearer kg_live_…); create a free one with the register tool. Returns one of four verdicts (no_conflict_found, conflict_found, ask_one_question, couldnt_verify) with typed hits, source kind and read date. Unknown counts as no; the word safe is never used.

  • check_planFree

    Rule a set of items at once: a recipe's ingredients, a basket, several days. Needs a key (Authorization: Bearer kg_live_…); create a free one with the register tool. Up to 25 subjects, one call, one verdict per item plus a summary line. Each item carries its own evidence, source and read date.

  • check_venueFree

    Rule a whole venue's published chart against the household restrictions in one call. Needs a key (Authorization: Bearer kg_live_…); create a free one with the register tool. Returns per-verdict counts, the most severe items, the operator's cross-contact caveat verbatim, and the chart's source and read date. A venue with no machine-readable chart says so honestly.

  • registerFree

    Sign yourself up for a developer key without leaving MCP. The email is contact and recovery, not a wall. One key per email, free tier (100 checks a month); the key is in this response and never shown again. Nothing on knowngate.com itself needs a key.

Public scan report

scanner v0.1.10 · 2026-10-16 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1557ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancerepository not readable: repo not found3/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10
Overall 75/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How KnownGate compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
75/100
higher than 45% of 48,243 servers
Tools
4
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
619 ms
faster than 25% of 30,027 servers

What its tools let an agent do: 3 read · 1 create

Install KnownGate in Claude Code, Cursor or VS Code

claude mcp add --transport http verify https://mcp.knowngate.com
Add to Cursor

What the publisher says

From the KnownGate repository's README, as published. We do not edit it. Read it on GitHub

KnownGate

KnownGate is the food verification layer for people and AI agents: it checks food against what must not be in it, or a number it must stay under, and returns evidence-backed verdicts with their sources and read dates.

MCP endpoint

https://mcp.knowngate.com

Streamable HTTP and SSE. The versioned path https://www.knowngate.com/api/knowngate/v0/mcp serves the same server and stays documented, but the subdomain is the address to configure: it does not bake a version number into anything you publish.

you can build against,

  • Server card:
  • Evidence standard: and, as a document
  • For agents:

Authentication. A Bearer key, and a free one is created in-band with the register tool. There is no signup to call this.

Tools

Verdicts

Every check returns exactly one of four, with the source it rested on and the date that source was read:

noconflictfound · conflictfound · askonequestion · couldntverify

Unknown counts as no. A claim can create a conflict but never a clear. The word "safe" is not used anywhere in this system. What each verdict means, and the highest verdict each kind of source can reach, is published in full at /standard.

Verdicts are not cryptographically signed in v1.0, and the profile says so (signed_verdicts: false). A saved record at /ck/{id} is the durable artifact: it carries the subject, the premise, the verdict, its source and read date, and the standard version it was issued under.

Licensing

it and build on it. A standard others build against is worth more to us than a database others cannot see.

  • Code: MIT.
  • Evidence standard (/standard, /standard/v1.json): CC-BY-4.0. Take

Project artifacts

  • KnownGate challenge brief: project context, challenge requirements, product direction, WebMCP contract, judging strategy, and open decisions captured on 30 August 2026.
  • KnownGate build brief: implementation requirements, product doctrine, screens, design system, WebMCP tools, API contracts, fixtures, evaluations, and delivery criteria.

Getting Started

First, run the development server:

npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev

Open http://localhost:3000 with your browser to see the result.

You can start editing the page by modifying app/page.tsx. The page auto-updates as you edit the file.

This project uses next/font to automatically optimize and load Geist, a new font family for Vercel.

Learn More

To learn more about Next.js, take a look at the following resources:

  • Next.js Documentation - learn about Next.js features and API.
  • Learn Next.js - an interactive Next.js tutorial.

You can check out the Next.js GitHub repository - your feedback and contributions are welcome!

Deploy on Vercel

The easiest way to deploy your Next.js app is to use the Vercel Platform from the creators of Next.js.

Check out our Next.js deployment documentation for more details.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-10-16downgradeA → Bscore 75

KnownGate: common questions

Is KnownGate MCP server safe?
Mostly: it is graded B (75/100). Read the KnownGate safety report
How do I install KnownGate?
It runs remotely at mcp.knowngate.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does KnownGate need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is KnownGate maintained?
The last commit was 64 days ago (2026-09-02). The latest release is v0.1.0.
Is KnownGate up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does KnownGate compare with other MCP servers?
safety score 75/100 (higher than 45% of 48,243 servers); tools 4 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.