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Publish and schedule posts to Instagram, TikTok, YouTube and 6 more platforms with one request. PostOnce posts through each platform's official posting API, and every paid plan includes API access, from $0.79/day.
Updated
curl -X POST https://postonce.to/api/public/v1/posts \
-H "Authorization: Bearer po_live_xxxxx_xxxxx" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: episode-12" \
-d '{
"content": "New episode is live",
"publish_at": "2026-12-01T14:00:00.000Z",
"media": [
{ "url": "https://cdn.example.com/episode.mp4", "type": "video" }
],
"targets": [
{ "account_id": "instagram-account-id" },
{ "account_id": "tiktok-account-id" },
{ "account_id": "youtube-account-id" }
]
}'Each account gets its own status. 60 requests a minute on Creator, 300 on Pro and Agency.
Settings › API keys. Pick only the scopes you need.
GET /v1/accounts returns each connected account's ID.
POST /v1/posts with the account IDs. Add publish_at to schedule.
One API, nine official posting APIs. No developer app or app review on your side.
Instagram posting APIPublish Reels, photo posts and carousels to Instagram Business and Creator accounts. No Meta developer app or app review on your side.
TikTok posting APIPost TikTok videos and photo posts through TikTok's official Content Posting API. No TikTok developer app to register.
YouTube posting APIUpload Shorts and regular videos with your title and description. No Google Cloud project to set up.
Facebook posting APIText, photo posts and Reels on your Facebook Pages.
LinkedIn posting APIText, images and video on your profile or Company Page.
X (Twitter) posting APIPosts with text, up to 4 images, a video or a GIF.
Threads posting APIText posts and carousels that mix images and videos.
Bluesky posting APIText, images and video, with clickable links and mentions.
Pinterest posting APIImage and video Pins on the board you choose.
For apps that publish to YouTube, TikTok and Instagram on behalf of their users.
Yes. Each platform has its own official posting API with its own app review. PostOnce puts Instagram, TikTok, YouTube, Facebook, LinkedIn, X, Threads, Bluesky and Pinterest behind one REST API, so one request can publish to all of them.
Every paid plan (Creator, Pro and Agency) from $0.79/day, billed yearly. API keys aren't available during the 7-day free trial; AI assistants that sign in to PostOnce work during the trial.
The platforms' own APIs are free, but you need a developer app on each platform and its approval before you can post. PostOnce has those approvals, so you only need an API key.
Yes, for Business and Creator accounts. Through PostOnce you connect the account once and publish Reels and carousels with one call, without your own Meta app.
Yes. PostOnce posts through TikTok's official Content Posting API. You connect your TikTok account and send videos or photo posts, without registering your own TikTok developer app.
60 requests per minute per API key on Creator, and 300 on Pro and Agency. Each platform's own posting limits still apply, such as 50 Instagram posts per account in 24 hours.
Yes. Add publish_at to the post. You can update, publish now or cancel it before it runs.
Yes. n8n has a PostOnce node, and Claude, ChatGPT, Cursor and Codex connect through the PostOnce MCP server.
The Partner API. Your users connect their YouTube, TikTok and Instagram accounts from your product, and you pay $0.01 per post. PostOnce turns it on per account, so email support@postonce.to to request access.