Query Twitter/X profiles, tweets, follower events, and KOL data through the 6551 REST API.
Design & media
Upload-Post
Try itPost videos, photos, text, and documents to 10 social platforms through a single REST API call.
What it does
Post content to multiple social media platforms with one API call. Supports uploading videos, photo carousels, text-only posts, and LinkedIn document posts (PDF/PPT/DOC up to 100MB). Includes scheduled posting, history retrieval, upload status checks, and analytics for followers, impressions, reach, profile views and time-series data. Also provides an FFmpeg media-processing endpoint, plus utilities for listing Facebook pages, LinkedIn pages, Pinterest boards, and Reddit posts with media.
When to use it
- Publishing the same short video to TikTok, Instagram, and YouTube in one request
- Scheduling a cross-platform campaign with mixed photo+video carousels
- Uploading a PDF or slide deck as a native LinkedIn carousel document post
- Pulling followers, impressions, and reach across platforms from a single analytics endpoint
The skill document
Upload-Post API
Post content to multiple social media platforms with a single API call.
Documentation
- Full API docs: https://docs.upload-post.com
- LLM-friendly: https://docs.upload-post.com/llm.txt
Setup
- Create account at upload-post.com
- Connect your social media accounts
- Create a Profile (e.g., "mybrand") - this links your connected accounts
- Generate an API Key from dashboard
- Use the profile name as
userparameter in API calls
Authentication
Authorization: Apikey YOUR_API_KEY
Base URL: https://api.upload-post.com/api
The user parameter in all endpoints refers to your profile name (not username), which determines which connected social accounts receive the content.
Endpoints Reference
| Endpoint | Method | Description |
|---|---|---|
/upload_videos | POST | Upload videos |
/upload_photos | POST | Upload photos/carousels |
/upload_text | POST | Text-only posts |
/upload_document | POST | Upload documents (LinkedIn only) |
/uploadposts/status?request_id=X | GET | Check async upload status |
/uploadposts/history | GET | Upload history |
/uploadposts/schedule | GET | List scheduled posts |
/uploadposts/schedule/ | DELETE | Cancel scheduled post |
/uploadposts/schedule/ | PATCH | Edit scheduled post |
/uploadposts/me | GET | Validate API key |
/analytics/ | GET | Get analytics |
/uploadposts/facebook/pages | GET | List Facebook pages |
/uploadposts/linkedin/pages | GET | List LinkedIn pages |
/uploadposts/pinterest/boards | GET | List Pinterest boards |
/uploadposts/reddit/detailed-posts | GET | Get Reddit posts with media |
/ffmpeg | POST | Process media with FFmpeg |
Upload Videos
curl -X POST "https://api.upload-post.com/api/upload_videos" \
-H "Authorization: Apikey YOUR_KEY" \
-F "user=profile_name" \
-F "platform[]=instagram" \
-F "platform[]=tiktok" \
-F "video=@video.mp4" \
-F "title=My caption"
Key parameters:
user: Profile username (required)platform[]: Target platforms (required)video: Video file or URL (required)title: Caption/title (required)description: Extended descriptionscheduled_date: ISO-8601 date for schedulingtimezone: IANA timezone (e.g., "Europe/Madrid")async_upload: Settruefor background processingfirst_comment: Auto-post first comment
Upload Photos
curl -X POST "https://api.upload-post.com/api/upload_photos" \
-H "Authorization: Apikey YOUR_KEY" \
-F "user=profile_name" \
-F "platform[]=instagram" \
-F "photos[]=@photo1.jpg" \
-F "photos[]=@photo2.jpg" \
-F "title=My caption"
Instagram & Threads support mixed carousels (photos + videos in same post).
Upload Text
curl -X POST "https://api.upload-post.com/api/upload_text" \
-H "Authorization: Apikey YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"user": "profile_name",
"platform": ["x", "threads", "bluesky"],
"title": "My text post"
}'
Supported: X, LinkedIn, Facebook, Threads, Reddit, Bluesky.
Upload Document (LinkedIn only)
Upload PDFs, PPTs, DOCs as native LinkedIn document posts (carousel viewer).
curl -X POST "https://api.upload-post.com/api/upload_document" \
-H "Authorization: Apikey YOUR_KEY" \
-F "user=profile_name" \
-F 'platform[]=linkedin' \
-F "document=@presentation.pdf" \
-F "title=Document Title" \
-F "description=Post text above document"
Parameters:
document: PDF, PPT, PPTX, DOC, DOCX (max 100MB, 300 pages)title: Document title (required)description: Post commentaryvisibility: PUBLIC, CONNECTIONS, LOGGED_IN, CONTAINERtarget_linkedin_page_id: Post to company page
Supported Platforms
| Platform | Videos | Photos | Text | Documents |
|---|---|---|---|---|
| TikTok | ✓ | ✓ | - | - |
| ✓ | ✓ | - | - | |
| YouTube | ✓ | - | - | - |
| ✓ | ✓ | ✓ | ✓ | |
| ✓ | ✓ | ✓ | - | |
| X (Twitter) | ✓ | ✓ | ✓ | - |
| Threads | ✓ | ✓ | ✓ | - |
| ✓ | ✓ | - | - | |
| - | ✓ | ✓ | - | |
| Bluesky | ✓ | ✓ | ✓ | - |
Upload History
curl "https://api.upload-post.com/api/uploadposts/history?page=1&limit=20" \
-H "Authorization: Apikey YOUR_KEY"
Parameters:
page: Page number (default: 1)limit: 10, 20, 50, or 100 (default: 10)
Returns: upload timestamp, platform, success status, post URLs, errors.
Scheduling
Add scheduled_date parameter (ISO-8601):
{
"scheduled_date": "2026-02-01T10:00:00Z",
"timezone": "Europe/Madrid"
}
Response includes job_id. Manage with:
GET /uploadposts/schedule- List all scheduledDELETE /uploadposts/schedule/- CancelPATCH /uploadposts/schedule/- Edit (date, title, caption)
Check Upload Status
For async uploads or scheduled posts:
curl "https://api.upload-post.com/api/uploadposts/status?request_id=XXX" \
-H "Authorization: Apikey YOUR_KEY"
Or use job_id for scheduled posts.
Analytics
curl "https://api.upload-post.com/api/analytics/profile_name?platforms=instagram,tiktok" \
-H "Authorization: Apikey YOUR_KEY"
Supported: Instagram, TikTok, LinkedIn, Facebook, X, YouTube, Threads, Pinterest, Reddit, Bluesky.
Returns: followers, impressions, reach, profile views, time-series data.
Get Pages/Boards
# Facebook Pages
curl "https://api.upload-post.com/api/uploadposts/facebook/pages" \
-H "Authorization: Apikey YOUR_KEY"
# LinkedIn Pages
curl "https://api.upload-post.com/api/uploadposts/linkedin/pages" \
-H "Authorization: Apikey YOUR_KEY"
# Pinterest Boards
curl "https://api.upload-post.com/api/uploadposts/pinterest/boards" \
-H "Authorization: Apikey YOUR_KEY"
Reddit Detailed Posts
Get posts with full media info (images, galleries, videos):
curl "https://api.upload-post.com/api/uploadposts/reddit/detailed-posts?profile_username=myprofile" \
-H "Authorization: Apikey YOUR_KEY"
Returns up to 2000 posts with media URLs, dimensions, thumbnails.
FFmpeg Editor
Process media with custom FFmpeg commands:
curl -X POST "https://api.upload-post.com/api/ffmpeg" \
-H "Authorization: Apikey YOUR_KEY" \
-F "file=@input.mp4" \
-F "full_command=ffmpeg -y -i {input} -c:v libx264 -crf 23 {output}" \
-F "output_extension=mp4"
- Use
{input}and{output}placeholders - Poll job status until
FINISHED - Download result from
/ffmpeg/job//download - Supports multiple inputs:
{input0},{input1}, etc.
Quotas: Free 30min/mo, Basic 300min, Pro 1000min, Advanced 3000min, Business 10000min.
Platform-Specific Parameters
See references/platforms.md for detailed platform parameters.
Media Requirements
See references/requirements.md for format specs per platform.
Error Codes
| Code | Meaning |
|---|---|
| 400 | Bad request / missing params |
| 401 | Invalid API key |
| 404 | Resource not found |
| 429 | Rate limit / quota exceeded |
| 500 | Server error |
Notes
- Videos auto-switch to async if >59s processing time
- X long text creates threads unless
x_long_text_as_post=true - Facebook requires Page ID (personal profiles not supported by Meta)
- Instagram/Threads support mixed carousels (photos + videos)
Questions people ask
- Which platforms are supported?
- TikTok, Instagram, YouTube, LinkedIn, Facebook, X, Threads, Pinterest, Reddit, and Bluesky. Media-type support varies per platform — see the compatibility table in the docs (e.g., YouTube is video-only, Reddit supports photos and text but not video uploads).
- How does authentication work?
- Send your API key as `Authorization: Apikey YOUR_KEY` on calls to the base URL `https://api.upload-post.com/api`. The required `user` parameter is the profile name you created in the Upload-Post dashboard, which determines which connected accounts receive the post.
- Can I schedule posts in advance?
- Yes. Add `scheduled_date` (ISO-8601) and `timezone` (IANA, e.g. `Europe/Madrid`) to any upload call. Manage queued jobs via `GET /uploadposts/schedule`, `DELETE /uploadposts/schedule/{job_id}` to cancel, and `PATCH /uploadposts/schedule/{job_id}` to edit the date or caption.
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