How to post to Discord from ChatGPT, and schedule announcements

Set it up and post, step by step

Prompt to copy once Discord is connected: Here are our release notes. Write a Discord announcement with the three changes people will notice, show it to me, and post it to the channel at 5pm today.

1. Add PostWire to ChatGPT

   Open PostWire in ChatGPT's app directory, or search for PostWire in ChatGPT's apps, and add it. A sign-in window asks for your email and a 6-digit code, which also creates a free PostWire account if you have none: no password and no card. ChatGPT asks you to confirm a write action such as publishing before it runs.

2. Copy the channel's webhook URL

   In Discord, open the channel → Edit Channel → Integrations → Webhooks → New Webhook → Copy Webhook URL. You need permission to manage that channel (server owner or admin). The link looks like https://discord.com/api/webhooks/<id>/<token>; the name and avatar you give the webhook are what the channel shows on each message.

3. Connect Discord

   Ask ChatGPT "connect my Discord". It calls create_connect_link and gives you a one-hour link; open it, choose Discord and paste the link into Webhook link. There is no Discord sign-in screen. PostWire checks that it is a Discord webhook and asks Discord whether it exists before saving it, so a link copied without its end is refused on that page, not at the first post.

4. Ask for the announcement and approve it

   "Write the Discord announcement." generate_posts returns a draft and publishes nothing: short and friendly, in a community tone, emojis and links welcome, under 2,000 characters. Ask for changes in plain words ("shorter", "add the date", "end with the link"). Ask for the Telegram or LinkedIn version in the same sentence and each comes back written for its own network.

5. Add an image or a video, if you want one

   A file attached to the chat does not reach the app, so ChatGPT gives you an upload page (create_upload_link): open it on the phone or laptop that has the file and pick it, up to 100 MB on the free plan and 1 GB on paid plans. Then say "uploaded". PostWire puts the file's link on its own line under the text, and Discord shows it as an embed.

6. Post now, or schedule it

   Say "post it" and ChatGPT calls post_to_social. Say "schedule it for 5pm" and it calls schedule_post, up to 365 days ahead, or "next_slot" for your next free posting hour. This is the call:

   {
     "name": "schedule_post",
     "arguments": {
       "platforms": ["discord"],
       "per_platform": { "discord": {
         "text": "🚀 v2.4 is out! Dark mode, 2x faster sync and 14 fixes.\nFull notes: https://example.com/changelog"
       } },
       "photo_url": "https://postwire.io/m/…/release.png",
       "run_at": "2026-11-12T17:00:00-05:00"
     }
   }

7. Check that it went out

   The answer lists Discord with ok and the id of the message; get_post_status returns it later too. If Discord refuses a post, the result says what happened and the fix, and a webhook someone deleted in Discord shows on the dashboard as "reconnect" before a scheduled post is due.

"What's scheduled on Discord?" calls list_scheduled_posts and "cancel the 5pm announcement" calls cancel_scheduled_post; the same queue is on the dashboard's Queue page. Prefer to set it up by hand? Open the dashboard, connect Discord under Accounts and write the first announcement in the composer.