Introduction
PostBoost is a Social Media API for developers, AI agents, and businesses of all sizes.
One REST API replaces 12+ separate social platform integrations. PostBoost handles OAuth, token refresh, and platform-specific quirks — you just POST content and it ships.
What you can do
- Publish to Instagram, X (Twitter), LinkedIn, TikTok, Facebook, Pinterest, YouTube, Mastodon, Threads, Bluesky, Reddit, and Google Business Profile in a single API call
- Schedule posts for any future timestamp, or add them to the smart publishing queue
- Upload media via binary upload, chunked upload for large files, or remote URL
- Manage workspaces and users programmatically — ideal for agencies and SaaS platforms building multi-tenant social features
- Receive webhooks when posts publish, fail, or are approved — no polling required
- Use from AI agents via MCP (Model Context Protocol) or standard function/tool calling
Base URL
https://postboost.co/app/api
Authentication
All requests require a Bearer token:
Authorization: Bearer YOUR_API_TOKEN
Generate tokens in your dashboard under Settings → Access Tokens. See Authentication for details.
Quick navigation
| I want to… | Go to |
|---|---|
| Make my first API call | Quick Start |
| Upload images or video | Media Uploads |
| Understand auth tokens | Authentication |
| Receive real-time events | Webhooks |
| Handle errors | Error Handling |
| Use a pre-built SDK | SDKs |
| Browse all 58 endpoints | API Reference |
Supported platforms
| Platform | Posts | Media | Analytics |
|---|---|---|---|
| ✓ | ✓ | ✓ | |
| X (Twitter) | ✓ | ✓ | ✓ |
| LinkedIn (personal & pages) | ✓ | ✓ | ✓ |
| TikTok | ✓ | ✓ | ✓ |
| ✓ | ✓ | ✓ | |
| ✓ | ✓ | ✓ | |
| YouTube | ✓ | ✓ | ✓ |
| Mastodon | ✓ | ✓ | — |
| Threads | ✓ | ✓ | — |
| Bluesky | ✓ | ✓ | — |
| Google Business Profile | ✓ | — | — |
| ✓ | ✓ | — |