Add the endpoint
Use https://postlumi.com/api/mcp when creating the ChatGPT MCP connection.
Remote agent interface
Connect an MCP-compatible client without sharing social credentials.
Give ChatGPT the stable /api/mcp endpoint and complete PostLumi's browser consent, or create a private token for another compatible client. Brand Brain approval and the workspace publishing policy stay under your control in PostLumi.
ChatGPT connection
The endpoint implements remote JSON-RPC MCP plus OAuth 2.1 discovery, PKCE and browser consent. ChatGPT never needs a PostLumi token pasted into its settings.
Sign in and consent
PostLumi opens Google sign-in and shows the exact workspace permissions before linking.
Use stable mutation keys
Every write tool requires an idempotencyKey of at least eight characters. Completed calls replay; ambiguous unfinished writes stay safely locked.
Choose your approval policy
Manual mode returns a locked PostLumi review URL. If you explicitly enable auto-approval in PostLumi, only newly prepared immutable publications are queued automatically. Agents cannot change this setting; Brand Brain proposals always require your review.
Other MCP clients
For a client that accepts custom Bearer authorization, create a revocable 30-day token in Settings → Agent Access and send it only to the trusted client. Public directory listing and OpenAI review are separate from protocol compatibility.
What an agent can prepare
A connected agent can read Brand Brain context, propose selected Brand Brain changes, build a goal-led seven-day plan, turn a selected plan day into editable platform drafts, create carousel or three-post outlines, attach workspace media, and prepare an immutable publication snapshot. Manual mode returns a first-party approval preview; owner-enabled auto-approval queues that newly prepared snapshot through the same safety gates. Brand changes appear as an exact Current versus Proposed comparison and only affect future suggestions after you approve. Existing drafts and scheduled posts stay unchanged.
Brand Brain proposal access
Grant the dedicated brand:propose permission during OAuth consent or when creating a private token. Existing grants are not silently upgraded. You can reject a proposal, revoke the originating grant or edit Brand Brain directly; each action prevents an outdated proposal from being applied.