Works, with rewrites

Cross-posting LinkedIn to Discord: what actually breaks

You can, but not by copying the text across: 3 things change between LinkedIn and Discord, starting with you lose 1,000 characters. Below is exactly what breaks and what to do instead.

Side by side

LinkedInDiscord
Characters3,0002,000
Mediaoptionaloptional
Hashtags3 hashtags (5 max) at the endnot needed
Links in bodysuppress reachfine
Needs platform approvalyesno

What changes, one by one

You lose 1,000 characters

LinkedIn allows 3,000 characters; Discord caps at 2,000. A post written to LinkedIn's length gets truncated — usually mid-sentence — unless it is rewritten, not trimmed.

The hashtag rules are not the same

LinkedIn: 3 hashtags (5 max) at the end. Discord: not needed. Carrying the tag block across is the single most obvious sign of an automated cross-post.

Discord lets you put the link back in

LinkedIn penalises links in the body, so posts written for it park the URL elsewhere. On Discord links in the body are fine — putting it back is free reach.

Why copy-paste cross-posting underperforms

LinkedIn is professional and first-person; the hook must fit in 210 characters. Discord is casual and short, like talking in a channel. Those are different jobs, so the same words cannot do both well — and every algorithm here demotes text that obviously was not written for it. The fix is not to skip cross-posting; it is to send a native version to each network.

Publish to both in one call

curl -X POST https://postwire.io/api/post \
  -H "Authorization: Bearer $POSTWIRE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "platforms": ["linkedin", "discord"],
    "text": "Your post",
    "per_platform": {
      "linkedin": { "text": "The LinkedIn version" },
      "discord": { "text": "The Discord version" }
    }
  }'

PostWire's /api/generate writes those per-platform versions for you from a single prompt, respecting every limit in the table above. From an AI agent it is one MCP tool call.

Get an API key free →

Questions people actually ask

Can I cross-post from LinkedIn to Discord?
You can, but not by copying the text across: 3 things change between LinkedIn and Discord, starting with you lose 1,000 characters. Below is exactly what breaks and what to do instead.
What is the character limit difference between LinkedIn and Discord?
LinkedIn allows 3,000 characters and Discord allows 2,000.
How do I post to LinkedIn and Discord at the same time?
With PostWire, one API call publishes to both: POST /api/post with platforms set to ["linkedin","discord"]. Or one MCP tool call from an AI agent.

Other pairs: Discord to LinkedIn · all combinations · which APIs need approval