Precept MCP Server

by co-preceptai Your server? Claim it

answering

Precept is answering right now. Last checked 10 min ago. 44 installs a week from npm.

B2B lead and company intelligence: search leads, enrich contacts, and queue outreach.

Installs per day peak 428 · avg 78 · -69% w/w

a month agotoday

Uptime history 69 hours of history

69 hours agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

358 ms

Response time

average over 24h

Installs / week

npm and PyPI

Nothing serious here today

Today is the operative word: we check Precept 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 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add precept --transport http https://precept-mcp-server-production.up.railway.app/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "precept": {
      "url": "https://precept-mcp-server-production.up.railway.app/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.precept]
url = "https://precept-mcp-server-production.up.railway.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "precept": {
      "url": "https://precept-mcp-server-production.up.railway.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "precept": {
      "url": "https://precept-mcp-server-production.up.railway.app/mcp"
    }
  }
}

This one needs environment variables set before it will start: PRECEPT_API_KEY (API key from the Precept Developer Dashboard). The author declared them in the registry entry; get the values from the project itself.

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://precept-mcp-server-production.up.railway.app/mcp	streamable-http	sign-in	332 ms	10 min ago

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Precept — questions

Answers built from our own checks of this server.

Why is there no tool list for Precept?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Precept 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 358 ms. The bar chart above shows every period we have measured.

How do I connect Precept?

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. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to Precept?

No API key is involved. Precept answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

How fast is Precept?

It answers our handshake in 358 ms on average, which is faster than 37% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Precept?

The npm package @preceptai/mcp-server was installed 44 times in the last week. Week over week that is -69%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.