One API Call to Post on X / Twitter
The Twitter API v2 requires paid access tiers, strict OAuth 2.0 with PKCE, and imposes aggressive rate limits that vary by plan. RelayAPI handles OAuth, rate limits, media hosting, and API changes.
No credit card required · Free plan available
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: ['twitter'],
media: ['https://cdn.example.com/image.jpg'],
}),
});Twitter API v2
- Paid API access is mandatory -- even basic posting requires at least the Basic tier at $100/month
- OAuth 2.0 with PKCE and separate user-context vs app-context tokens adds significant auth complexity
- Tweet thread creation requires sequential API calls with reply-chaining and careful error handling
- Rate limits are extremely tight (e.g., 17 tweets per 24 hours on Basic tier) with opaque enforcement
- Media uploads use a separate chunked upload endpoint with finalization polling before attaching to tweets
RelayAPI
- Use your existing Twitter API credentials through RelayAPI without worrying about tier-specific endpoint restrictions
- RelayAPI handles the full OAuth 2.0 PKCE flow, token storage, and automatic refresh for user-context operations
- Post entire threads with a single API call -- pass an array of tweets and we chain the replies automatically
- Intelligent rate limit tracking with request queuing, automatic backoff, and usage monitoring per account
- Upload media to RelayAPI and we manage chunked uploads, processing status polling, and attachment to tweets
Supported Content Types
How It Works
Connect Your Account
Authorize your X / Twitter 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 tweets, threads, and media with a single API call. No need to manage chunked uploads, reply chains, or poll creation flows separately.
Official API, Zero Hassle
RelayAPI uses the official Twitter API v2. Your posts appear natively in timelines with full engagement metrics, while we handle token management and rate limit compliance.
Threads Without the Complexity
Creating Twitter threads requires sequential replies with error handling at each step. RelayAPI lets you send an array of tweet content and we handle the reply-chaining, media attachment, and error recovery.
Frequently Asked Questions
Start Building with X / Twitter
Join developers who chose RelayAPI over building with Twitter API v2 directly.
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