Post to 17 platforms with a single API call
Stop building separate integrations for each social network. Relay gives you one unified endpoint to publish content everywhere.
Launching our new unified API! One endpoint to reach every social platform. Try it free today 🚀
Trusted by fast-growing startups
One endpoint for every platform
Relay handles authentication, rate limits, media formatting, and platform quirks so you can focus on building your product
Go from zero to publishing in minutes
Connect your social accounts, get your API key, and start publishing with a single REST call. No SDKs to install.
Connect accounts via OAuth
Link Twitter, Instagram, LinkedIn, TikTok, and 11 more platforms in seconds. We handle token refresh and re-auth automatically.
Publish with one API call
Send a single POST request with your content and target platforms. Relay formats and delivers to each network simultaneously.
Media uploads. Webhooks. Scheduling.
Upload images and videos to our CDN, schedule posts for the perfect time, and get notified when content goes live via webhooks.
View DocsUpload media once, use everywhere
Upload images and videos to Relay. We auto-resize and reformat for each platform's requirements.
Waiting for events...
Real-time delivery webhooks
Get notified instantly when your posts are published, fail, or receive engagement. Never miss a status update.
Stop managing 12 APIs. Just use one.
Relay abstracts away the complexity of each social platform's API. Consistent request format, unified error handling, and standardized responses.
Built for teams and developers worldwide
From indie makers to marketing teams at scale. Trusted by companies that need reliable cross-platform publishing.
Trusted by growing teams
Development teams and marketing platforms rely on Relay to power their social publishing workflows at scale.
Serving developers globally
Relay powers social publishing for developers and companies around the world with 99.9% uptime and edge-deployed infrastructure.
Sign up. Connect. Publish.
Get from zero to publishing across all platforms in under 5 minutes
Compose, publish
Compose, publish
Create your API key
Sign up, create a workspace, and generate your API key. Start making requests immediately with our developer-friendly REST API.
Compose, publish
Connect your social accounts
Link Twitter, Instagram, LinkedIn, TikTok, Facebook, YouTube, Reddit, and more via OAuth. All credentials are encrypted at rest.
Compose, publish
Publish to every platform at once
Send a single API request with your content. Relay handles formatting, media optimization, and delivery to each platform.
Create your API key
Sign up, create a workspace, and generate your API key. Start making requests immediately with our developer-friendly REST API.
Connect your social accounts
Link Twitter, Instagram, LinkedIn, TikTok, Facebook, YouTube, Reddit, and more via OAuth. All credentials are encrypted at rest.
Publish to every platform at once
Send a single API request with your content. Relay handles formatting, media optimization, and delivery to each platform.
Hear from our developer community
Teams and developers trust Relay to power their cross-platform social publishing. Here's what they have to say.
Relay replaced 8 different social media integrations in our app. One unified API that just works.Our team saved weeks of development time.
Alex Rivera
CTO at InnovateTech
We used to spend hours manually cross-posting content. With Relay, one call handles everything. Our social reach has increased by 3x since switching.
Samantha Lee
Marketing Director at NextGen Solutions
As a startup, we can't afford to build integrations for every social platform. Relay let us ship social publishing in a single afternoon.Essential tool for any startup.
Raj Patel
Founder & CEO at StartUp Grid
The media handling alone is worth it. Upload once and Relay resizes for every platform automatically. No more managing different image specs per network.
Emily Chen
Product Manager at Digital Wave
The API design is developer-friendly and the docs are excellent. We integrated Relay into our publishing pipeline in under an hour.Clean REST API with great error handling.
Michael Brown
Lead Developer at SocialStack
Managing social presence across 10 platforms was a nightmare.Relay made it a single workflow. Our team loves it.
Linda Wu
VP of Marketing at ContentFlow
We evaluated building our own cross-posting solution, but Relay was up and running in a fraction of the time.The webhook notifications are a game-changer for our workflow.
Carlos Gomez
Head of Engineering at MediaPulse
Relay replaced 8 different social media integrations in our app. One unified API that just works.Our team saved weeks of development time.
Alex Rivera
CTO at InnovateTech
We used to spend hours manually cross-posting content. With Relay, one call handles everything. Our social reach has increased by 3x since switching.
Samantha Lee
Marketing Director at NextGen Solutions
As a startup, we can't afford to build integrations for every social platform. Relay let us ship social publishing in a single afternoon.Essential tool for any startup.
Raj Patel
Founder & CEO at StartUp Grid
The media handling alone is worth it. Upload once and Relay resizes for every platform automatically. No more managing different image specs per network.
Emily Chen
Product Manager at Digital Wave
The API design is developer-friendly and the docs are excellent. We integrated Relay into our publishing pipeline in under an hour.Clean REST API with great error handling.
Michael Brown
Lead Developer at SocialStack
Managing social presence across 10 platforms was a nightmare.Relay made it a single workflow. Our team loves it.
Linda Wu
VP of Marketing at ContentFlow
We evaluated building our own cross-posting solution, but Relay was up and running in a fraction of the time.The webhook notifications are a game-changer for our workflow.
Carlos Gomez
Head of Engineering at MediaPulse
Relay replaced 8 different social media integrations in our app. One unified API that just works.Our team saved weeks of development time.
Alex Rivera
CTO at InnovateTech
We used to spend hours manually cross-posting content. With Relay, one call handles everything. Our social reach has increased by 3x since switching.
Samantha Lee
Marketing Director at NextGen Solutions
As a startup, we can't afford to build integrations for every social platform. Relay let us ship social publishing in a single afternoon.Essential tool for any startup.
Raj Patel
Founder & CEO at StartUp Grid
The media handling alone is worth it. Upload once and Relay resizes for every platform automatically. No more managing different image specs per network.
Emily Chen
Product Manager at Digital Wave
The API design is developer-friendly and the docs are excellent. We integrated Relay into our publishing pipeline in under an hour.Clean REST API with great error handling.
Michael Brown
Lead Developer at SocialStack
Managing social presence across 10 platforms was a nightmare.Relay made it a single workflow. Our team loves it.
Linda Wu
VP of Marketing at ContentFlow
We evaluated building our own cross-posting solution, but Relay was up and running in a fraction of the time.The webhook notifications are a game-changer for our workflow.
Carlos Gomez
Head of Engineering at MediaPulse
Relay replaced 8 different social media integrations in our app. One unified API that just works.Our team saved weeks of development time.
Alex Rivera
CTO at InnovateTech
We used to spend hours manually cross-posting content. With Relay, one call handles everything. Our social reach has increased by 3x since switching.
Samantha Lee
Marketing Director at NextGen Solutions
As a startup, we can't afford to build integrations for every social platform. Relay let us ship social publishing in a single afternoon.Essential tool for any startup.
Raj Patel
Founder & CEO at StartUp Grid
The media handling alone is worth it. Upload once and Relay resizes for every platform automatically. No more managing different image specs per network.
Emily Chen
Product Manager at Digital Wave
The API design is developer-friendly and the docs are excellent. We integrated Relay into our publishing pipeline in under an hour.Clean REST API with great error handling.
Michael Brown
Lead Developer at SocialStack
Managing social presence across 10 platforms was a nightmare.Relay made it a single workflow. Our team loves it.
Linda Wu
VP of Marketing at ContentFlow
We evaluated building our own cross-posting solution, but Relay was up and running in a fraction of the time.The webhook notifications are a game-changer for our workflow.
Carlos Gomez
Head of Engineering at MediaPulse
Launching campaigns across all social channels simultaneously has never been easier.Relay unified our entire social strategy into one pipeline.
Aisha Khan
Chief Marketing Officer at BrandForge
The cursor-based pagination and consistent error responses make Relay a joy to work with.Finally, a social API that follows best practices.
Tom Chen
Senior Developer at DevTools Inc
Our creator platform needed multi-platform publishing and Relay delivered exactly that.17 platforms through one integration. Incredible.
Sofia Patel
CEO at CreatorKit
We needed enterprise-grade security for social publishing. Relay's AES-256 encryption and SOC2-ready infrastructure met all our requirements.Security-first API design.
Jake Morrison
CTO at SecureNet Tech
Managing social accounts for 50+ clients was painful until we found Relay.Multi-workspace support is perfect for agencies.
Nadia Ali
Product Manager at AgencyHub
Relay's free tier was generous enough to validate our idea. When we scaled, the pricing stayed reasonable.Fair pricing that grows with your business.
Omar Farooq
Founder at GrowthLab
Launching campaigns across all social channels simultaneously has never been easier.Relay unified our entire social strategy into one pipeline.
Aisha Khan
Chief Marketing Officer at BrandForge
The cursor-based pagination and consistent error responses make Relay a joy to work with.Finally, a social API that follows best practices.
Tom Chen
Senior Developer at DevTools Inc
Our creator platform needed multi-platform publishing and Relay delivered exactly that.17 platforms through one integration. Incredible.
Sofia Patel
CEO at CreatorKit
We needed enterprise-grade security for social publishing. Relay's AES-256 encryption and SOC2-ready infrastructure met all our requirements.Security-first API design.
Jake Morrison
CTO at SecureNet Tech
Managing social accounts for 50+ clients was painful until we found Relay.Multi-workspace support is perfect for agencies.
Nadia Ali
Product Manager at AgencyHub
Relay's free tier was generous enough to validate our idea. When we scaled, the pricing stayed reasonable.Fair pricing that grows with your business.
Omar Farooq
Founder at GrowthLab
Launching campaigns across all social channels simultaneously has never been easier.Relay unified our entire social strategy into one pipeline.
Aisha Khan
Chief Marketing Officer at BrandForge
The cursor-based pagination and consistent error responses make Relay a joy to work with.Finally, a social API that follows best practices.
Tom Chen
Senior Developer at DevTools Inc
Our creator platform needed multi-platform publishing and Relay delivered exactly that.17 platforms through one integration. Incredible.
Sofia Patel
CEO at CreatorKit
We needed enterprise-grade security for social publishing. Relay's AES-256 encryption and SOC2-ready infrastructure met all our requirements.Security-first API design.
Jake Morrison
CTO at SecureNet Tech
Managing social accounts for 50+ clients was painful until we found Relay.Multi-workspace support is perfect for agencies.
Nadia Ali
Product Manager at AgencyHub
Relay's free tier was generous enough to validate our idea. When we scaled, the pricing stayed reasonable.Fair pricing that grows with your business.
Omar Farooq
Founder at GrowthLab
Launching campaigns across all social channels simultaneously has never been easier.Relay unified our entire social strategy into one pipeline.
Aisha Khan
Chief Marketing Officer at BrandForge
The cursor-based pagination and consistent error responses make Relay a joy to work with.Finally, a social API that follows best practices.
Tom Chen
Senior Developer at DevTools Inc
Our creator platform needed multi-platform publishing and Relay delivered exactly that.17 platforms through one integration. Incredible.
Sofia Patel
CEO at CreatorKit
We needed enterprise-grade security for social publishing. Relay's AES-256 encryption and SOC2-ready infrastructure met all our requirements.Security-first API design.
Jake Morrison
CTO at SecureNet Tech
Managing social accounts for 50+ clients was painful until we found Relay.Multi-workspace support is perfect for agencies.
Nadia Ali
Product Manager at AgencyHub
Relay's free tier was generous enough to validate our idea. When we scaled, the pricing stayed reasonable.Fair pricing that grows with your business.
Omar Farooq
Founder at GrowthLab
One API. Every platform. Simple pricing.
Start free with 1,000 posts included. Scale as your audience grows across 17 platforms.
How it works
- Base plan includes 1,000 posts
- Each extra post costs just $0.01
- No hidden fees — pay only for what you use
- 30-day free trial, no credit card required
Every plan includes
- All 17 platforms included
- $0.01 per additional post
- Media uploads & scheduling
- Webhook notifications
- Analytics dashboard
- Full API access
Monthly post volume
100posts
$5 base — includes first 1,000 posts
30-day free trial. No credit card required.
Frequently Asked Questions
Answers to common questions about Relay. If you have any other questions, reach out to our support team.
Start publishing to every platform today
Stop juggling 17 different APIs. One integration, every platform, free to start.