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X

X

OAuth 1.0a

Build an X reply chain with the right limit for each account.

This page is for people deciding whether OpenPost fits their X publishing workflow.

Draft, preview, and schedule X posts, links, media, and reply threads. OpenPost checks the limit for each connected account.

Implemented: Publishing is implemented

Managed certification: No managed provider-format certification claim is current.

Try OpenPost Platform guide

Formats and limits

Different formats, different rules.

OpenPost checks the text and media rules for the format you choose.

Post, thread, or link

Text
280 standard · up to 25,000 subscribed
Media
Text only

Image post

Text
280 standard · up to 25,000 subscribed
Media
1-4 JPEG, PNG, WebP, or GIF images

Video

Text
280 standard · up to 25,000 subscribed
Media
1 MP4 or QuickTime video

Provider limits and scope

  • 280 weighted characters for standard accounts
  • Up to 25,000 weighted characters for verified Basic, Premium, or Premium+ accounts
  • Video: 140 seconds and 512 MiB standard; up to 4 hours and 16 GiB subscribed
  • Up to 4 images or 1 MP4 video
  • Your X API plan and limits still apply

Connect and test

Set up X in three checks.

  1. 1

    Configure the X client ID, secret, and the exact OpenPost callback URL.

  2. 2

    Enable OAuth 1.0a user authentication in the X developer portal.

  3. 3

    Connect the X account from Social accounts, then publish a small test post.

Known limits

What can still block a post.

  • OpenPost uses standard limits when X cannot verify a connected account subscription tier.
  • Media publishing needs OAuth 1.0a access-token and secret pairs.
  • Polls, quote posts, and other format settings remain subject to the account API tier.

Account requirement: An X developer app with OAuth 1.0a user authentication enabled.

Verification: Check OAuth, account limits, and each post type you plan to use.

Use the current callback address, permissions, and media setup.

Social network developer pages change. The OpenPost guide lists the settings and checks you need now.

Read the X guide