Write once, publish to eight social platforms from one workspace
Stage
Not given
Startup
Founded
Not given
2025
Based in
Not given
IE
Pricing model
Paid
Paid
Pricing
Pro plan: $29 when charged monthly. Yearly option available at 50% discount. Includes access to all features, up to 10 connected accounts, all platforms with multiple accounts each, unlimited scheduled posts, full API and MCP access, and automatic retries.
Solo: €15/month or €144/year (€12/month billed yearly). Pro: €30/month or €300/year (€25/month billed yearly). No per-channel fees.
Key features
Single API call to schedule posts across X, LinkedIn, Facebook, Instagram, YouTube and TikTok
Per-platform caption overrides
Connect multiple accounts per platform
Unified calendar with per-platform status
Idempotency keys prevent duplicate posts
Automatic retries with backoff
OpenAPI spec and llms.txt for agent integration
Simulated mode for testing before connecting accounts
Manual composer and programmatic API posting
MCP access for advanced integrations
Schedule posts to 8 social platforms
Per-platform media optimization
Recurring posts
Multi-workspace support
REST API for developers
Basic post analytics
Media library with Canva, Drive, and Dropbox integration
Link shortener and hashtag groups
Calendar and queue for scheduling
What makes it different
Purpose-built API for AI agents with agent-ready documentation
One API call reaches all major social platforms simultaneously
Prevents duplicate posts with idempotency keys
Test entire workflow before connecting real accounts
Unified calendar with human-friendly interface
Flat euro pricing with no per-channel fees
Supports Bluesky and Threads in the same plan as other networks
Clear failure status when a post fails to publish
No per-channel fees, unlike Buffer or Later
Built for individual operators and small teams, not enterprise
PostOnce