Olbrain Alchemist MCP Server

by olbrain Your server? Claim it

answering

Olbrain Alchemist is answering right now. Last checked 3 min ago. Last commit 1 Nov 2026.

Build, test and publish Olbrain AI agents from Claude Code, Codex or Claude.ai.

Uptime history 7 days of history

7 days agonow

100.0%

Uptime 24h

92 of 92 checks

—

Tools

hidden behind auth

1531 ms

Response time

average over 24h

Stars

last commit 1 Nov 2026

Nothing serious here today

Today is the operative word: we check Olbrain Alchemist 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 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add alchemist --transport http https://alchemist.olbrain.com/mcp/

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

https://alchemist.olbrain.com/mcp/

~/.codex/config.toml

[mcp_servers.alchemist]
url = "https://alchemist.olbrain.com/mcp/"

.cursor/mcp.json

{
  "mcpServers": {
    "alchemist": {
      "url": "https://alchemist.olbrain.com/mcp/"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "alchemist": {
      "type": "http",
      "url": "https://alchemist.olbrain.com/mcp/"
    }
  }
}

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://alchemist.olbrain.com/mcp/	streamable-http	sign-in	1683 ms	3 min ago

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Olbrain Alchemist — questions

Answers built from our own checks of this server.

Why is there no tool list for Olbrain Alchemist?

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 Olbrain Alchemist 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 1531 ms. The bar chart above shows every period we have measured.

How do I connect Olbrain Alchemist?

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. 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 Olbrain Alchemist?

No API key is involved. Olbrain Alchemist 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 Olbrain Alchemist?

It answers our handshake in 1531 ms on average, which is faster than 1% 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.

Is Olbrain Alchemist open source?

We cannot say either way: written in TypeScript and 1 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.