Protoperfect Labs MCP Server

by protoperfect Your server? Claim it

answering

Protoperfect Labs is answering right now. Last checked 2 min ago. It exposes 4 tools.

Search and read Protoperfect Labs research, documentation and glossary. Read-only.

Uptime history 8 days of history

8 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

624 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

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

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add labs --transport http https://protoperfect.io/api/mcp

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

https://protoperfect.io/api/mcp

~/.codex/config.toml

[mcp_servers.labs]
url = "https://protoperfect.io/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "labs": {
      "url": "https://protoperfect.io/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "labs": {
      "type": "http",
      "url": "https://protoperfect.io/api/mcp"
    }
  }
}

Available tools 4

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

documents

list_documents

List public pages with their titles, URLs and summaries. Optionally limit to one section: research (papers and case studies), documentation (architecture, blueprints, glossary, FAQ) or company (home, Studio, Games, About and the other hand-built pages).

search_documents

Search Protoperfect Labs research papers, documentation and blueprints. Every word of the query must appear. Returns up to 12 matches with the best-matching section and a snippet.

define

define_term

Return the Protoperfect glossary definition of a term (for example "Warranted Agency" or "Context Window"), with its category, related terms and the paper that covers it. Suggests close matches when there is no exact term.

document

get_document

Return any public protoperfect.io page as Markdown: research papers, documentation, the glossary and its terms, the FAQ, Studio, Games, About and the legal pages. Pass a path such as /research/warranted-agency or a full protoperfect.io URL.

Endpoints

URL	Transport	State	Latency	Checked
https://protoperfect.io/api/mcp	streamable-http	answering	126 ms	2 min ago

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Protoperfect Labs — questions

Answers built from our own checks of this server.

What can Protoperfect Labs do?

It exposes 4 tools, read directly from the server on our last check. Among them: define_term, get_document, list_documents, search_documents. 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 Protoperfect Labs 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 624 ms. The bar chart above shows every period we have measured.

How do I connect Protoperfect Labs?

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 Protoperfect Labs need an API key?

No. Protoperfect Labs completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Protoperfect Labs?

It answers our handshake in 624 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.