API documentation
One integration connects your customers’ accounts and posts to Instagram, TikTok, YouTube, LinkedIn, X and every other network. No review per network.
How it works
- Create an API key in the dashboard. Every request carries
Authorization: Bearer <api key>. - Create a profile for each brand or end customer. Social accounts are connected to a profile.
- Connect accounts: ask for a URL, send the user there, they authorize the network and come back to your app.
- Post: one
POST /v1/postswith the text, media and accounts. Now, scheduled, queued or as a draft. - Get webhooks when a post goes live or fails, or an account disconnects.
The basics
| Base URL | https://api.usecrier.com/v1 |
| Format | JSON requests and responses. Dates in ISO 8601. |
| Responses | The result is always inside data: { "data": { … } }. |
| Errors | { "error": { "code", "message" } } with a stable code. See Errors. |
| Ids | Prefixed by type: prf_ profiles, acc_ accounts, pst_ posts, evt_ events. |