Instagram API
Instagram Posting API
Publish feed posts, reels, carousels, and stories to Instagram programmatically. PostPeer handles the Instagram Graph API complexity for you.
- Feed posts, reels, and carousels via one endpoint
- Image and video uploads with format validation
- OAuth handled — no Facebook developer app needed
- Schedule posts for optimal engagement times
No credit card required.
POST https://api.postpeer.dev/v1/posts
{ "platforms": ["twitter", "linkedin"], "content": "Hello world!" }
{ "platforms": ["twitter", "linkedin"], "content": "Hello world!" }
Published
5 platformsTwitterLinkedInFacebook+2
All posts delivered
Scheduled
queue12
Queued
847
Sent
Next: in 15 min
Platforms
connectedXIGFBLITT
One API, every platform
How It Works
Add social media to your product in three steps.
01
Get Your API Key
Sign up and get your API key instantly — no sales calls, no complex onboarding.
02
Integrate in Minutes
A single endpoint to post, schedule, and manage content. Drop it into your product and go.
03
Your Users Post Everywhere
Your product now supports every major social platform — without you maintaining a single integration.
API Response Format
Clean, structured JSON that's easy to parse and integrate
Request
POST
curl -X POST https://api.postpeer.dev/v1/posts \
-H "x-access-key: your-api-key" \
-H "Content-Type: application/json" \
-d '{
"content": "New product launch! #startup #launch",
"mediaItems": [
{ "url": "https://cdn.example.com/photo.jpg", "type": "image" }
],
"platforms": [
{
"platform": "instagram",
"accountId": "acc_ig_456"
}
]
}'Response
JSON
{
"postId": "post_def456",
"status": "published",
"platforms": [
{
"platform": "instagram",
"status": "published",
"platformPostId": "17890012345678",
"platformPostUrl": "https://www.instagram.com/p/ABC123/"
}
]
}Everything You Need for Instagram Posting
Skip the Instagram Graph API complexity. PostPeer gives you a simple, unified endpoint for all Instagram publishing needs.
Feed Posts
Publish single-image or single-video feed posts with captions, hashtags, and location tags.
Reels
Upload and publish Instagram Reels with captions. PostPeer handles the async publishing flow Instagram requires.
Carousels
Create carousel posts with up to 10 images or videos. Pass multiple media items and PostPeer handles the multi-step upload.
Media Validation
PostPeer validates image dimensions, video duration, file size, and aspect ratios against Instagram's requirements before publishing.
Scheduled Publishing
Schedule Instagram posts for any time. PostPeer handles the publishing queue and delivers content at the right moment.
Cross-Post to Other Platforms
Publish the same content to Instagram + Twitter + TikTok + more in one request. Platform formatting handled automatically.
More Platform APIs
Frequently Asked Questions
Ready to Add Social Media to Your Product?
One API. Every platform. Start building with free credits.
Start Posting for FreeNo credit card required.
POST https://api.postpeer.dev/v1/posts
{ "platforms": ["twitter", "linkedin"], "content": "Hello world!" }
{ "platforms": ["twitter", "linkedin"], "content": "Hello world!" }
Published
5 platformsTwitterLinkedInFacebook+2
All posts delivered
Scheduled
queue12
Queued
847
Sent
Next: in 15 min
Platforms
connectedXIGFBLITT
One API, every platform