Add the connector and sign in
On a Pro or Max plan:- Open Customize > Connectors.
- Select + Add, then Add custom connector.
- Enter
PartFinderas the name andhttps://api.partfinder.dev/mcpas the remote MCP server URL. Select Continue. - Under Authentication, choose Sign in now. Under OAuth client, choose Use Claude’s published identity (Recommended).
- Select Add.
- When the PartFinder sign-in page opens, sign in, choose your organization and approve the two permissions.
Check the connection
Ask Claude “Is PartFinder connected?”. Claude calls theping tool, which is free.
Can I use my own API key?
Yes, in Claude Desktop. Its configuration file only starts local servers, so it connects to the PartFinder server throughmcp-remote, a small program that npx runs. You need
Node.js installed. The API key goes in the file’s env block, so no environment
variable needs to be set.
- In Claude Desktop, open the Claude menu and select Settings….
-
Select Developer, then Edit Config. The file opens:
- macOS:
~/Library/Application Support/Claude/claude_desktop_config.json - Windows:
%APPDATA%\Claude\claude_desktop_config.json
- macOS:
-
Add the
partfinderentry undermcpServers: -
Replace
<your API key>with your key. Keep the space afterBearer. Write no space around the:inAuthorization:${AUTH_HEADER}. - Save the file, then quit Claude Desktop completely and open it again.
env block. Keep the file on your computer, and never share or commit it.
If Claude Desktop cannot find
npx, for example because Node.js was installed through nvm, set
command to the full path to npx and add the folder that holds it to PATH in the same env
block.