MCP.Market

Quorum MCP server

online · 100% uptime
by Godzilla-lab·io.github.Godzilla-lab/quorum·v0.1.0
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Market evidence with receipts: every claim resolves to a real stored record you can fetch back.

A87/100grade A
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Safety scan
A87/100

full report

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

Quorum tools (5)

write = sends, deletes, buys or posts
  • category_warmthFree

    How much is already held for a category, and therefore whether asking about it is instant and free or slow and expensive. Check this BEFORE starting a report. With no category it lists what is held, so orient here instead of guessing slugs.

  • compare_formatsFree

    Video versus static advertising for a category, computed from how long real ads actually ran rather than from opinion. Returns a verdict, its confidence, and the ads behind it.

  • get_receiptFree

    Resolve receipt ids to the real records behind them. This is how you CHECK a claim: if an id does not resolve, the claim citing it was not real. Takes one id or many. Long records are truncated with notice; pass full: true for complete text.

  • research_productFree

    Start collecting evidence on a product or topic from public sources. RETURNS AT ONCE: the harvest runs in the background, the first records land within a minute, and a full run takes minutes. Then call `search_evidence` or `category_warmth` for the same subject after about 30 seconds and keep calling while the counts grow; stop when they stop. Every receipt returned along the way is already a real record. Calling this twice for one subject joins the same run rather than starting another.

  • search_evidenceFree

    Search the retained corpus for what people actually said about a product or topic. Returns how many independent records exist, across how many channels, whether that clears the corroboration threshold, and the loudest few quotes with their receipt ids. Costs nothing and touches no network.

Public scan report

scanner v0.1.10 · 2026-10-31 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 520ms20/20
  • Tool poisoning5 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 48 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 87/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Quorum compares

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

Safety score
87/100
higher than 73% of 48,255 servers
Tools
5
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
251 ms
faster than 55% of 30,031 servers

What its tools let an agent do: 5 read

Install Quorum in Claude Code, Cursor or VS Code

claude mcp add --transport http quorum https://quorum-api-j15n.onrender.com/mcp
Add to Cursor

What the publisher says

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

Quorum

Market evidence with receipts.

Give it a subject, get back what a market actually says. Every claim carries receipt ids, and every receipt id resolves to a real stored record you can fetch back. Fabricated citations are structurally impossible, and a test proves it rather than a README asserting it.

[!TIP]

The interesting part is not that it finds evidence. It is that you can check

it. Every id in every answer resolves through GET /v1/evidence/{id}, and

POST /v1/verify will re-resolve a set of claims against the corpus, ours or

anybody else's. An id that does not resolve is a claim that was never real.

{
  "finding": "Sizing runs small, and buyers only discover it after delivery",
  "corroboration": { "records": 31, "channels": 5 },
  "receipts": ["rc_8f2a1", "rc_44b0e", "rc_91c37"],
  "confidence": "finding"
}

GET /v1/evidence/rc_8f2a1 returns the actual comment, its score, where it was posted, when, and its permalink. A customer of your customer can click a claim and read the human who said it.

The hosted API lives at https://quorum-api-j15n.onrender.com, on a free tier instance that sleeps when idle, so the first request after a quiet spell waits a few seconds for it to wake.

The hosted instance is keyed while the API is early. The API root says how to request a key, and always says which mode the instance you are talking to is in. The health endpoint needs no key, so you can check it is alive right now:

curl https://quorum-api-j15n.onrender.com/v1/healthz

Self hosting supports open mode or per key auth, quotas, tenancy and webhook secrets, all self served from GET /v1/usage.

[!NOTE]

On Windows, the curl bundled with Git Bash uses the Schannel TLS stack,

which refuses any HTTPS connection when it cannot reach the certificate

revocation servers (CRYPTEREVOCATION_OFFLINE, common behind corporate

proxies and VPNs). That is the network, not this API. Add

--ssl-revoke-best-effort to the curl command, or call from WSL or

PowerShell instead.

Contents

  • What it does
  • Use cases
  • Status
  • Requirements
  • Quick start
  • Usage
  • CLI
  • HTTP API
  • JavaScript SDK
  • Python SDK
  • MCP server
  • Webhooks

What it does

Voice of customer from public archives, competitor ads ranked by how long they have actually been running, and a video versus static verdict computed as arithmetic rather than opinion. It keeps everything it reads, so the second question about a market is nearly free and the archive can be asked about the past.

Key capabilities

Shortened. The full README is on GitHub.

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

Quorum: common questions

Is Quorum MCP server safe?
Yes, by our scan: it is graded A (87/100). Read the Quorum safety report
How do I install Quorum?
It runs remotely at quorum-api-j15n.onrender.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 Quorum need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Quorum maintained?
The last commit was 52 days ago (2026-09-13). The latest release is v0.1.0.
Is Quorum up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Quorum compare with other MCP servers?
safety score 87/100 (higher than 73% of 48,255 servers); tools 5 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.