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Quorum MCP Server

by godzilla-lab Your server? Claim it
answering

Quorum is answering right now. Last checked 10 min ago. It exposes 5 tools. Last commit 13 Sep 2026.

Market evidence with receipts: every claim resolves to a real stored record you can fetch back.

Uptime history 53 days of history · worst day 98%
53 days agonow
100.0%
Uptime 24h
92 of 92 checks
5
Tools
read from the server
372 ms
Response time
average over 24h
0
Stars
last commit 13 Sep 2026

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 27 August 2026. No other catalogue keeps this.

13 Sep a tool appeared research_product
27 Aug a tool changed the parameters it asks for search_evidence

Nothing serious here today

Today is the operative word: we check Quorum every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

run in your terminal
claude mcp add quorum --transport http https://quorum-api-j15n.onrender.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "quorum": {
      "url": "https://quorum-api-j15n.onrender.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.quorum]
url = "https://quorum-api-j15n.onrender.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "quorum": {
      "url": "https://quorum-api-j15n.onrender.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "quorum": {
      "url": "https://quorum-api-j15n.onrender.com/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

category
category_warmth
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
compare_formats
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.
evidence
search_evidence
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.
receipt
get_receipt
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
research_product
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.

Endpoints

URLTransportStateLatencyChecked
https://quorum-api-j15n.onrender.com/mcp streamable-http answering 605 ms 10 min ago

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Quorum — questions

Answers built from our own checks of this server.

What can Quorum do?
It exposes 5 tools, read directly from the server on our last check. Among them: category_warmth, compare_formats, get_receipt, research_product, search_evidence. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Quorum working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 372 ms. The bar chart above shows every period we have measured.
How do I connect Quorum?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Quorum need an API key?
No. Quorum completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Quorum?
It answers our handshake in 372 ms on average, which is faster than 34% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Quorum open source?
Yes — it is published under the Apache-2.0 licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.