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A plain-language walkthrough for adding Ad Legends as a personal plugin today—then confirming that your brands are available in a fresh conversation.
Ad Legends is not yet listed in ChatGPT’s public Plugins Directory. You do not need to wait for that listing: in the ChatGPT desktop app, Plugin Creator can add the production MCP server to your Personal plugins. On ChatGPT web, users with Developer Mode can add the same server directly. Both paths connect to your Ad Legends account through OAuth; availability can still depend on your account or workspace policy.
Sign in with the account that owns or has access to the brands you want to use.
Use the desktop app for the easiest Plugin Creator path, or ChatGPT web with Developer Mode.
Personal plugin and Developer Mode availability can depend on your ChatGPT account or workspace policy.
The ChatGPT desktop app can create the personal plugin for you. On the web, Developer Mode lets you register the same secure MCP connection yourself.
@Plugin Creator Add the Ad Legends personal plugin for this MCP server: https://www.adlegends.ai/api/mcp/brandsIf Developer Mode is missing or disabled, your account or workspace policy may not allow personal MCP connections. Ask your workspace owner or request setup help from Ad Legends.
Connect opens an Ad Legends authorization flow. Sign in there, check the account and access being requested, and approve only what you intend to use. OAuth grants the plugin a revocable connection; you do not paste an Ad Legends password or API key into the conversation.
Workspace controls, your Ad Legends role, and brand permissions still apply. The plugin should only return brands and actions your signed-in account is authorized to access.
“Show my Ad Legends brands.”
A successful connection returns the brands available to the Ad Legends account you authorized. If the list is empty or incomplete, check the signed-in account and its brand permissions before reconnecting.
That is expected today. Use Plugin Creator in the ChatGPT desktop app, or add the production MCP URL through ChatGPT web Developer Mode.
Developer Mode availability can depend on your ChatGPT account or workspace policy. Ask your workspace owner to allow personal connections, or contact Ad Legends for guided setup.
Confirm you are using the current ChatGPT desktop app in Work mode or Codex, keep the MCP server URL unchanged, and review any approval or authentication request the skill shows.
Allow the sign-in window, confirm cookies and pop-ups are not being blocked, sign in to the intended Ad Legends account, and try Connect again.
Start a fresh conversation. Existing chats may not load a plugin that was installed or reconnected after the conversation began.
Confirm the OAuth flow used the correct Ad Legends account and that the account has permission to the expected brands.
Disconnect or revoke the MCP connection in Ad Legends settings, then reconnect and choose the correct account during OAuth.
Codex desktop also supports adding the remote MCP server through its own settings. This local Codex configuration is separate from the ChatGPT Developer Mode connection above, but both use the same production endpoint and OAuth flow.
adlegends_brandsStreamable HTTPhttps://www.adlegends.ai/api/mcp/brandsOpenAI’s current guidance documents personal marketplace plugins in the desktop app, direct MCP connections through ChatGPT Developer Mode, workspace publishing, and a separate review process for public Directory listings.
Ad Legends is not yet listed in ChatGPT’s public Plugins Directory. You can still use it now as a personal plugin: ask Plugin Creator to add the Ad Legends MCP server in the desktop app, or add the server through ChatGPT web Developer Mode.
Yes, but enter it in the Developer Mode connection form—not as an ordinary chat message. Open Settings, choose Security and login, turn on Developer Mode, then open Plugins and use the plus button to add the Ad Legends MCP server URL.
No. The personal plugin and Developer Mode paths connect through Ad Legends OAuth. The authorization screen grants the connection only the access allowed by your Ad Legends account.
A new chat loads the newly installed plugin and its current capabilities cleanly. Existing chats may not recognize a plugin that was installed or reconnected after the conversation began.
Start a fresh chat and ask, “Show my Ad Legends brands.” A successful connection should return the brands your signed-in Ad Legends account is allowed to access.
Create an account, add the personal plugin, and bring your Ad Legends brands into a fresh ChatGPT task today.