ChatGPT
Add Endless to ChatGPT as a developer mode plugin, sign in with your Endless account, and ask ChatGPT to work with your workspace.
ChatGPT connects to Endless through developer mode. Add Endless as a plugin with this address, then sign in with your Endless account. Copy it without a trailing slash or path (not the /mcp path some ChatGPT guides show).
https://mcp.endless.appDeveloper mode is available on ChatGPT on the web, on the Plus, Pro, Business, Enterprise and Edu plans. On Business, Enterprise or Edu, a ChatGPT workspace owner or admin must first allow it under Permissions & roles.
Add Endless to ChatGPT
Turn on developer mode
In ChatGPT, open Settings → Security and login and turn on Developer mode.
Create the plugin
Open Settings → Plugins and press +. In New Plugin, set Name to Endless, Connection to Server URL with the address above, and Authentication to OAuth. Leave Advanced OAuth settings unchanged.
Accept the warning
ChatGPT warns about every MCP server OpenAI has not reviewed. Select I understand and want to continue, then press Create. Endless tools never edit or delete your content, and ChatGPT asks before each paid call.
Sign in with Endless
Press Sign in with Endless, sign in, and press Allow. ChatGPT shows Endless as connected.
Use it in a chat
In a new chat, press + in the message box, choose Developer mode and select Endless. Ask: "Ask Endless who I am." It answers with your account, your workspaces and the selected one.
Example requests
Name Endless in the request so ChatGPT uses the plugin instead of a web search:
- "Search my Endless assets for the Q3 launch deck."
- "Find my Endless chat about the podcast clips and summarize what we decided."
- "Quote an image of a red bicycle on a white background in Endless, then generate it."
For the full list of tools and costs, see Endless in other AI apps.
When it doesn't work
- Developer mode is missing: your plan does not include it, your ChatGPT workspace admin has not allowed it, or you are not on the web.
- Sign-in does not complete: delete the plugin and create it again, with no trailing slash or path and Authentication set to OAuth. If it still fails, sign in to Endless in the same browser and retry.
- ChatGPT does not use Endless: select Endless under Developer mode in the chat, and name Endless in your request.
- A file you know exists is missing: you are in another workspace, or the asset is private to a colleague. See assets and visibility.