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Cursor 1.0+ supports OAuth for remote MCP servers out of the box. Add just the URL — no key — and Cursor registers itself and handles sign-in:
Then open Cursor → Settings → Tools & Integrations, find alchemist under MCP Tools, and click Login — a browser opens to sign in with your Alchemist account.
OAuth signs you in as an existing Alchemist user. Sign in once at app.askalchemist.com first, or the server returns 401 even after the flow completes.

API key

Prefer a shared key or a headless setup? Use the auto-install block below, or the manual setup. Both use the Authorization header.

Copy and Paste in Cursor

Copy the block below and paste it into Cursor Agent. Cursor will create the MCP config and the rule file for you automatically.

Manual setup

If you prefer to configure manually, add to .cursor/mcp.json:
Then verify in Cursor Settings → MCP that Alchemist shows as connected with 6 tools.
The header above is the API-key path. Alchemist also supports OAuth 2.0 with Dynamic Client Registration — if your client can run an OAuth flow, drop the headers block entirely and it will discover the authorization server on its own. See Generic MCP → OAuth 2.0.