Official Mastodon ActivityPub API

Fediverse Decentralized Social Publishing

Publish open posts to any federated Mastodon instance. Reach censorship-resistant tech communities across the ActivityPub network.

Launch PostFlow & Connect Data Deletion Policy

Custom Instance Support

Connect to mastodon.social or your private corporate Fediverse instance.

Content Warnings (CW)

Add sensitive content flags and collapse teasers on technical spoilers.

Open Protocol Freedom

No algorithm manipulation — every follower sees your posts chronologically.

Rich Media Attachments

Attach photos, audio, and videos with custom focal points.

🛡️ Developer Policy & Data Security Compliance

PostFlow connects to Mastodon strictly via official developer APIs with explicit user authorization. All authentication tokens are encrypted at rest using industry-grade AES-256 encryption on our private PostgreSQL cluster (VPS 148.230.98.190).

We do not sell, transfer, or monetize user data. Access can be immediately revoked at any time via our User Data Deletion Instructions or directly within your Mastodon account security settings.