How to upload to YouTube from ChatGPT

Set it up and post, step by step

Prompt to copy once YouTube is connected: Write a YouTube title and description for the video I'm about to upload, show them to me, and schedule it unlisted for Tuesday at 10:00 New York time.

1. Add PostWire as a custom connector

   If your ChatGPT plan offers developer mode, turn it on under Settings → Security and login, then under Settings → Connectors add a custom connector with the URL https://postwire.io/api/mcp and sign in when asked (OAuth). Menu names in ChatGPT change often; OpenAI's help page has the current path. PostWire is not in ChatGPT's app directory yet (submitted to OpenAI's review on Sept 27, 2026). Not available on your plan? Use PostWire in Claude, where it is in the connector directory.

2. Sign in with your email

   A 6-digit code creates your free PostWire account inside the sign-in window: no password and no card. ChatGPT asks you to confirm a write action such as publishing before it runs.

3. Connect your YouTube channel

   Ask "connect my YouTube". The connector calls create_connect_link and gives you a one-hour link; open it, sign in on Google's own page and pick the channel. You do this once per channel.

4. Hand over the video

   A file attached to a ChatGPT message does not reach a connector, so ask for an upload link: create_upload_link returns a page where you pick the video on the phone or laptop that has it (up to 100 MB on the free plan and 1 GB on paid plans); say "uploaded" and the assistant reads it with get_uploaded_file. A public https link works too. Large files are sent to YouTube with its resumable upload, so a slow connection does not start over. No video yet? make_video_from_text turns a few lines into an 8-12 second vertical MP4 (1080×1920), which YouTube shows as a Short.

5. Approve the title, description and tags

   "Write the title and description." generate_posts returns a draft and publishes nothing: a title with the words people search in its first 40 characters (YouTube takes up to 100), a description whose first lines repeat the promise, 3-5 hashtags, and 5-8 tags. Then say who can see it: public, unlisted (only people with the link) or private.

6. Upload now, or schedule it

   Say "upload it" and the assistant calls post_to_social; the result carries the video's link. Say "schedule it for Tuesday at 10" and it calls schedule_post, up to 365 days ahead, or with run_at: "next_slot" for your next free posting hour. This is the call:

   {
     "name": "schedule_post",
     "arguments": {
       "platforms": ["youtube"],
       "per_platform": { "youtube": {
         "title": "How we cut our build from 9 minutes to 2",
         "text": "The one change that cut our CI build time.\n\nIn this video: …\n\n#devtools #ci #buildinpublic",
         "tags": ["ci build time", "faster builds", "devops"]
       } },
       "video_url": "https://postwire.io/m/…/build-demo.mp4",
       "privacy": "unlisted",
       "run_at": "2026-11-03T10:00:00-05:00"
     }
   }

"What's scheduled on YouTube?" calls list_scheduled_posts and "cancel Tuesday's upload" calls cancel_scheduled_post; the same queue is on the dashboard's Queue page. Prefer to set it up by hand first? Open the dashboard, connect the account under Accounts and copy your key under API & MCP.