X terms of service

Pay-Per-Use access (as described at developer.x.com ) is designed for hobbyists, commercial prototyping, early-stage X product integrations, and supporting applications with limited end-users.

The use of the X API and developer products to create spam, or engage in any form of platform manipulation, is prohibited.

You may not use the X API to measure the availability, performance, functionality, or usage of X for benchmarking, competitive, or commercial purposes.

As you use the X API you may not sell or receive monetary or virtual compensation for any X actions.

You may not use X Content, or information obtained from the X API to target people with advertising outside of the X platform.

If you store X Content offline, you must keep it up to date with the current state of that content on X.

you may only distribute Post IDs, Direct Message IDs, and/or User IDs (except as described below).

If we believe you are in violation of this Policy (or any other X policy), we may suspend or permanently revoke your access to the X API and X Content.

This Policy may be changed from time to time without notice.

Among other things, the X API has rate limits which help to ensure fair data usage and to combat spam on the platform.