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Penguin Random House Developer Blog

Limitations on title listings

Due to some performance issues that have come up with badly formed requests, we are planning to put in a code change next week, Sep 13, 2021, to limit the number of titles returned by the /titles endpoint to 1000. Requests that would return more than one thousand rows in a single request will instead get back an HTTP 400 response saying that individual requests are capped at a thousand.

If you are an existing user of the PRH API and believe this change will negatively impact you, please contact us at api@penguinrandomhouse.com.