Twitter / X

X API v2 offers comprehensive access to posts, users, media, and real-time streams with modern RESTful endpoints.

Authentication supports OAuth 2.0, OAuth 1.0a, and Bearer tokens with good SDK support. The API includes powerful features like filtered streams, analytics, and direct messages. However, the free tier is extremely limited (500 posts/month), with Basic at $100/month (10K posts) and Pro at $5,000/month (1M posts). Rate limits are strict, and many features require paid access.

The API has undergone frequent changes affecting developer experience. It's suitable for businesses with budget for social media integration, but restrictive pricing makes it challenging for smaller projects or research applications.