Works with all AI agents

Connect your AI agent

Choose your AI agent and connect in seconds.

Add to Claude

Works on every Claude plan, including free. Full Claude guide

  1. 1

    Add to Claude

    One click from Claude’s connector directory.

  2. 2

    Sign up or sign in

    Takes seconds, then you’re sent straight back.

  3. 3

    Ask Claude

    “Plan and schedule my posts for next week.”

GET/platform-rules

Get per-platform composer rules with the PostEverywhere API

Server-authoritative composer rules for every supported platform: character limits, image/video constraints, and feature support (threads, carousels, reels, alt text, blog posts). WordPress also carries `blog`: the platform_content.wordpress fields, their limits and defaults. Google Business Profile carries `local_post`: the platform_content.google_business fields (post types, buttons, event and offer fields). Check before composing for an unfamiliar platform — limits span 300 characters (Bluesky) to 63,206 (Facebook), and some constraints are enforced platform-side only. Served with an ETag; a newly supported platform appears here with no client update. Live since 2026-08-17.

Guide: Media requirements by platform

Responses

  • 200Map of platform → rules
  • 401
  • 500
← All endpoints