Publish once.
Reach everywhere.
A client-side cross-posting tool for sovereign creators. Compose once, publish to X/Twitter, Bluesky, Mastodon, and more — from a single interface. Your identity stays yours: Ed25519 keypairs, no platform gate.
How Relay
works.
From compose to cross-post in four steps. No servers, no gatekeepers.
Connect your accounts
Authenticate with X/Twitter, Bluesky, Mastodon, and other supported platforms through OAuth. Your API keys stay local.
Compose once
Write your post in the Relay compose interface. Tag accounts, embed media, and preview how it renders on each platform before publishing.
Cross-post everywhere
Relay sends your content to every connected platform simultaneously. Threaded replies, media attachments, and formatting preserved per-platform.
Your identity, your keys
Every Relay identity is rooted in an Ed25519 keypair. Your content is signed, verifiable, and portable.
Everything a sovereign
creator needs.
Cross-posting without compromise. Full control, full flexibility.
Multi-platform publish
X/Twitter, Bluesky, Mastodon, and more from one compose panel. Platform-specific formatting and character limits handled automatically.
Self-sovereign identity
Ed25519 keypair identities. Your profile, your keys, your content. Not tied to any platform's user database.
Scheduled posting
Queue posts for optimal times across timezones. Per-platform scheduling with built-in analytics to track engagement.
Privacy-first architecture
All authentication happens client-side. No relay servers store your credentials or content.
Open protocol
Built on open standards — ActivityPub for Mastodon, AT Protocol for Bluesky, Twitter API v2 for X.
Cross-platform threads
Threaded conversations span platforms. Reply on X, see the response on Mastodon.
Stack.
Ready to publish
sovereign?
Relay is in active development. Follow along, contribute, or deploy your own instance.