Performix Site MCP Server

by performix Your server? Claim it

not responding

Performix Site is listed as active in the registry but did not answer our last check. It exposes 10 tools.

Performix public corpus over MCP: guides, books, evidence, outcome models, plus a computing tool.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 62 days of history · worst day 0%

62 days agonow

0.0%

Uptime 24h

0 of 92 checks

Tools

read from the server

154 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 17

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 September 2026. No other catalogue keeps this.

11 Oct 2 tools disappeared get_guide, list_guides

8 Oct a tool appeared situation_demo_get

22 Sep a tool description was rewritten get_guide

22 Sep a tool changed version

22 Sep a tool disappeared get_membership_offer

22 Sep a tool appeared self_diagnose_book

9 Sep 7 tools appeared get_evidence_source, get_guide_part, get_membership_offer and 4 more

9 Sep a tool changed version2 times that day

9 Sep a tool description was rewritten get_guide

and 1 more, back to 9 September 2026

Performix Site does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add performix-site --transport http https://performix.app/api/mcp

Settings → Connectors → Add custom connector, then paste this address

https://performix.app/api/mcp

~/.codex/config.toml

[mcp_servers.performix-site]
url = "https://performix.app/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "performix-site": {
      "url": "https://performix.app/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "performix-site": {
      "type": "http",
      "url": "https://performix.app/api/mcp"
    }
  }
}

Available tools 10

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

evidence

get_evidence_source

Get the full source → finding → construct → survey-item evidence chain for one source by id (from list_evidence_sources): its citation, every finding extracted from it, the constructs derived from each finding, and the survey items derived from each construct. Same content rendered at performix.app/learn/evidence/<id>. HONESTY: the citation is exposed as-is, including the 132 sources still carrying a placeholder title (HO-2431) — `citationPlaceholder` says which.

list_evidence_sources

List the 196 source records behind Performix's Performance Science Library — each a book, paper or corpus item with at least one derived finding, plus which CAMS dimensions (capability/alignment/motivation/support) its findings touch. Same source list rendered at performix.app/learn/evidence. NOTE: 132 of 196 sources carry an upstream placeholder citation title pending backfill (HO-2431) — check `citationPlaceholder` before treating `title`/`venue` as a real bibliographic record. Optional `query` filters by a case-insensitive substring over authors/title/venue; optional `camsDimension` filters to sources with at least one finding filed on that dimension.

guide

get_guide_part

Get the full body of one Team Performance Science Guide part by slug (from list_guide_parts). Same content rendered at performix.app/learn/<slug>. A part whose `status` is `stub` has no publishable body yet and returns an error rather than a placeholder — check `list_guide_parts`' `status` field first if you want to skip those.

list_guide_parts

List all 12 parts (8 numbered parts + 4 appendices) of the Team Performance Science Guide, Performix's cited public reference on why team performance varies and the CAMS diagnostic frame — same table of contents rendered at performix.app/learn. Each row carries `status` (live | draft | stub) so a caller can see which parts are actually publishable before calling get_guide_part.

outcome

get_outcome_model

Get one outcome's full driver table by id (from list_outcome_models): every driver's name, definition, CAMS dimension, lens role, evidence grade, study count (k), and evidence-reliability tier — plus drivers cited in the corpus with no meta-analytic effect size, and the personas that own this outcome. Same content rendered at performix.app/learn/models/<id>. MEASUREMENT-INTEGRITY (PFX-589, a portfolio standing rule): a driver's `r` is null unless its tier is T3 — this tool withholds exactly what the public page withholds and nothing less; VOI figures and overlap-corrected variance contributions are never exposed by this tool at any tier.

list_outcome_models

List the constructed outcome-model register behind Performix diagnostics — 28 per-outcome factor models generated from principia's meta-analytic library, each with its driver count, grade-A driver count, CAMS filing counts, and persona reach. Same register rendered at performix.app/learn/models. Also returns `namedUnmodellable` — outcomes named in the catalog with no constructed model yet. MEASUREMENT-INTEGRITY (PFX-589): this list carries no effect sizes at all; call get_outcome_model for a driver table, which withholds `r` below evidence tier T3 exactly as the public page does.

book

get_book

Get the full grounded profile for one book/cluster record by slug (from list_books): the record's own argument (contrast-not-summary) plus metadata and cross-links. Same content rendered publicly at performix.app/learn/books/<slug>.

books

list_books

List the performance-science reading corpus behind Performix — book/cluster profiles, each with a stance toward the CAMS diagnostic thesis (ally, orthodoxy, mixed, leave-out) and a one-line argument summary. Optional `query` filters by a case-insensitive substring match against title, authors, tradition and blurb.

self

self_diagnose_book

The runnable library's weakest-lever read, computed here from the committed book model: rate how present each of the book's levers is on your team (1–5) and get the one to work on first, ranked by weakness then causal leverage — the SAME function performix.app/learn/library uses. Levers come from list_books' exec-shelf slugs (e.g. the-culture-code). N=1, self-report, not psychometrically calibrated: tier INFERRED. Refuses degenerate ratings (fewer than two levers rated, all ratings equal, or values outside 1–5) instead of inventing an answer.

situation

situation_demo_get

Get a committed situation-demo export for an outcome and audience seat. The data is synthetic and illustrative, never a real client or live measurement. Visual series may be trimmed to stay within the response-size budget.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

get_membership_offer

removed 22 Sep 2026

get_guide

removed 11 Oct 2026

list_guides

removed 11 Oct 2026

Endpoints

URL	Transport	State	Latency	Checked
https://performix.app/api/mcp	streamable-http	answering	154 ms	1 min ago

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Performix Site — questions

Answers built from our own checks of this server.

What can Performix Site do?

It exposes 10 tools, read directly from the server on our last check. Among them: get_book, get_evidence_source, get_guide_part, get_outcome_model, list_books, list_evidence_sources and 4 more. 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 →

What is Performix Site mostly used for?

Its tools cluster around evidence, guide and outcome. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Performix Site working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 92 checks got a reply (0.0%), average response time 154 ms. The bar chart above shows every period we have measured.

Did Performix Site ever remove tools?

Yes. get_membership_offer, get_guide, list_guides are no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

Is Performix Site still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

The registry lists Performix Site as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Performix Site?

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 Performix Site need an API key?

No. Performix Site completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.