How to post to Discord from Claude Code

Set it up and post, step by step

Prompt to copy once Discord is connected: Read CHANGELOG.md, write a Discord announcement for v2.4 with the three changes users will notice, show it to me, and post it with ./assets/release.png.

1. Add PostWire to Claude Code

   In your terminal run claude mcp add --transport http postwire https://postwire.io/api/mcp (add --scope user to have it in every project), then type /mcp in Claude Code and pick postwire to sign in. The sign-in 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. Or install the skill instead

   npx skills add https://postwire.io --skill schedule-posts adds PostWire's scheduling skill to Claude Code (and to the other agents on the machine). It uses your key from the environment: copy it in the dashboard under API & MCP and set POSTWIRE_API_KEY. The skill is a plain file you can read first: schedule-posts/SKILL.md.

3. 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.

4. Connect Discord

   Ask "connect my Discord". Claude Code calls create_connect_link and prints 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.

5. Ask for the announcement

   "Write the Discord announcement for v2.4." 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.

6. Post now, or schedule it

   Say "post it" and Claude Code calls post_to_social. Say "schedule it for Tuesday at 5pm" and it calls schedule_post, up to 365 days ahead, or with run_at: "next_slot" for your next free posting hour. An image or a video goes as its public https link in photo_url or video_url: PostWire puts it on its own line under the text and Discord shows it as an embed. A file on your computer goes through an upload page: ask for one (create_upload_link), pick the file there, and Claude Code gets its link. One file can be up to 100 MB on the free plan and 1 GB on paid plans. 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 changelog: https://example.com/changelog"
       } },
       "photo_url": "https://example.com/assets/release.png",
       "run_at": "2026-10-20T17:00:00-05:00"
     }
   }

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 Tuesday's 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.