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Create a post and PlugKit publishes it to the connected account(s) in the profile. 
curl -X POST https://api.plugkit.co/v1/posts \
  -H "Authorization: Bearer sk_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "profileId": "YOUR_PROFILE_ID",
    "content": "Launch day 🚀",
    "mediaUrls": ["https://example.com/photo.jpg"]
  }'
The response includes a per-account result with the live platformPostUrl once publishing succeeds.
Instagram publishing is a two-step process (create media container, then publish). PlugKit handles both steps for you.

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Uploading media

If you don’t have a public image URL, upload the file first: 
curl -X POST https://api.plugkit.co/v1/media/upload \
  -H "Authorization: Bearer sk_your_key" \
  -F "file=@./photo.jpg"
It returns a public URL you can pass in mediaUrls.

See all fields

Open POST /v1/posts in the API Reference to try it live.