Usage of the Tumblr API is rate limited in a few ways, but we respond with a 429 Limit Exceeded response whenever a consumer hits one of these limits. There is a global rate limit for all usage of the API per consumer, as well as a few per-feature rate limits, such as how many posts you can make per day. The error message or headers you receive with the 429 Limit Exceeded response should indicate what limit you've hit.
These rate limits include:
- 300 API calls per minute, per IP address.
- 18,000 API calls per hour, per IP address.
- 432,000 API calls per day, per IP address.
- 1,000 API calls per hour, per consumer key.
- 5,000 API calls per day, per consumer key.
- 250 new posts (including reblogs) per day, per user.
- 300 queued posts per day, per user.
- 150 images uploaded per day, per user.
- 200 follows per day, per user.
- 1,000 likes per day, per user.
- 10 new blogs per day, per user.
- 10 videos uploaded per day, per user.
- 5 minutes of total video uploaded per day, per user.