One API Call to Post on Threads
The Threads API requires Instagram Business account linkage, Meta app review, and shares the Instagram Graph API's complexity. RelayAPI handles OAuth, rate limits, media hosting, and API changes.
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const response = await fetch('https://api.relayapi.dev/v1/posts', {
method: 'POST',
headers: {
'Authorization': 'Bearer rlay_live_xxxxxxxxxx',
'Content-Type': 'application/json',
},
body: JSON.stringify({
content: 'Check out our latest update!',
platforms: ['threads'],
media: ['https://cdn.example.com/image.jpg'],
}),
});Threads API
- Threads API access requires an Instagram Business or Creator account linked to a Facebook Page, plus Meta app review
- Media container creation uses a two-step flow similar to Instagram -- create container, then publish it
- Rate limits are shared with Instagram API quotas, making cross-platform publishing harder to manage
- The API is relatively new with limited documentation and features compared to more mature platform APIs
- Text formatting is limited and URL/mention detection requires specific formatting patterns
RelayAPI
- RelayAPI manages the Instagram account linkage and Meta app review process for seamless Threads access
- Publish Threads posts with a single API call -- we handle the two-step container creation and publishing flow
- Smart rate limit management across both Instagram and Threads quotas with unified tracking and queuing
- We stay on top of Threads API updates and new features, adding support as soon as they become available
- Automatic URL and mention detection with proper formatting -- just send plain text and we handle enrichment
Instagram Business or Creator Account Required
The Threads API requires your Threads account to be linked to an Instagram Business or Creator account connected to a Facebook Page. Personal accounts are not supported.
Supported Content Types
How It Works
Connect Your Account
Authorize your Threads account via OAuth in 30 seconds
Build Your Integration
Use the REST API or our SDKs to publish content
RelayAPI Handles the Rest
We manage publishing, rate limits, and delivery notifications
Ship Faster
Post to Threads with a single API call. No container creation, no two-step publishing flow, no Instagram account juggling. Send your content and we handle the Threads-specific pipeline.
Official API, Zero Hassle
RelayAPI uses the official Threads API. Your posts appear natively in Threads feeds with full engagement, while we handle Meta app review, account linkage, and API updates.
Cross-Post to Instagram and Threads
Since Threads shares infrastructure with Instagram, RelayAPI lets you publish to both platforms simultaneously with a single request, optimizing content for each platform's format requirements.
Frequently Asked Questions
Start Building with Threads
Join developers who chose RelayAPI over building with Threads API directly.
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