How to post to Discord from Claude

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 Claude

   Open PostWire in Claude's connector directory and press Connect; it works in Claude on the web, on the desktop and on your phone. In Claude Code, run claude mcp add --transport http postwire https://postwire.io/api/mcp. 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.

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 "connect my Discord". Claude 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 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

   "Write the Discord announcement." generate_posts returns a draft and publishes nothing: short and friendly, in a community tone, emojis and links welcome, under Discord's 2,000 characters. 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 a connector, so Claude gives you an upload page instead (create_upload_link, valid 24 hours, up to 100 MB on the free plan and 1 GB on paid plans). Pick the image or the video there and Claude attaches it to the post. A public https link works too. 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 Claude calls post_to_social. Say "schedule it for 5pm" 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": ["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": "2026-11-03T17:00:00-05:00"
     }
   }

7. Check that it went out

   The result lists Discord with ok and the id of the message. If Discord refuses it, the result carries what happened and the fix; a webhook someone deleted in Discord shows up in 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 first? Open the dashboard, connect the account under Accounts and copy your key under API & MCP.