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PE or Not? MCP Server

answering

PE or Not? is answering right now. Last checked 6 min ago. It exposes 3 tools.

Is a US dentist, vet or eye doctor private-equity backed? Owner, PE backers and sources for each.

Uptime history 5 days of history · worst day 0%
5 days agonow
46.2%
Uptime 24h
42 of 91 checks
3
Tools
read from the server
264 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 6

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 7 November 2026. No other catalogue keeps this.

7 Nov 3 tool descriptions were rewritten find_businesses, get_group, lookup_business
7 Nov 3 tools changed the parameters they ask for find_businesses, get_group, lookup_business

PE or Not? does not always answer

Over the last week it answered 24.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

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 6 min ago.

run in your terminal
claude mcp add peornot --transport http https://peornot.org/mcp/
Settings → Connectors → Add custom connector, then paste this address
https://peornot.org/mcp/
~/.codex/config.toml
[mcp_servers.peornot]
url = "https://peornot.org/mcp/"
.cursor/mcp.json
{
  "mcpServers": {
    "peornot": {
      "url": "https://peornot.org/mcp/"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "peornot": {
      "type": "http",
      "url": "https://peornot.org/mcp/"
    }
  }
}

Available tools 3

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

businesses
find_businesses
List dentists, eye care practices, vets, dermatology or GI practices in a ZIP code, city or state, optionally filtered by ownership label. With industry "brand", list consumer brands instead (no location needed), filtered by label and by words in the brand, owner, backer or category (name), e.g. pet food brands with no known PE ties. Covers requests like "dentists in Plano, TX with no PE ties" (label=no_known_pe_ties) or "PE-backed eye doctors in 75024" (label=pe_backed,lender_owned). Labels: pe_backed, lender_owned (PE-backed, now lender-controlled), corporate_owned (not PE, owned by a company), health_system_owned, group_practice (owned by its dentists/doctors, no outside investor), vc_backed, no_known_pe_ties, unconfirmed, not_labeled; aliases pe and no_pe. Returns counts by label for the area, total, a page of results (limit up to 100, then next_offset) with each one's label wording and source, and the coverage note. Dental and eye care cover every NPI-registered practice; vet, derm and GI list only the tracked groups' locations. Some listings come from clinicians' individual NPI records and aren't confirmed open.
group
get_group
Get an owner group's ownership details: label and consumer wording, owner or PE backers and since when, PE stake (majority or minority), how it holds practices (buyout, partnership, joint venture, de novo), parent and brands, every source with its headline and date, and known locations by state. Covers questions like "who owns Heartland Dental?" or "is Aspen Dental private equity?" (brand names work). Also answers for consumer brands ("Orvis") and for the companies and PE firms behind them ("Authentic Brands Group", "Sycamore Partners"): the brands on our list they own or back.
lookup
lookup_business
Checks whether one specific dentist, eye doctor, vet, dermatology or GI practice is private-equity backed, from its name plus city and state or ZIP. A street address or phone number makes the match surer. Also answers for a consumer brand by name or website (e.g. "Orvis" or "orvis.com"), with its owner, backers and sources. Returns a status (match, multiple_matches, possible_matches, no_match, need_location), a "say" sentence in the site's label wording, and matches with label, owner group, backers, PE stake and deal model, confidence, sources (headline, link, date), coverage and a correction link.

Endpoints

URLTransportStateLatencyChecked
https://peornot.org/mcp/ streamable-http answering 256 ms 6 min ago

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PE or Not? — questions

Answers built from our own checks of this server.

What can PE or Not? do?
It exposes 3 tools, read directly from the server on our last check. Among them: find_businesses, get_group, lookup_business. 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 PE or Not? working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 42 of 91 checks got a reply (46.2%), average response time 264 ms. The bar chart above shows every period we have measured.
How do I connect PE or Not??
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does PE or Not? need an API key?
No. PE or Not? completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is PE or Not??
It answers our handshake in 264 ms on average, which is faster than 52% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.