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Stack Overflow Revisions API

Every version of a question or answer, with who changed it, when, and the text on either side.

GET /v1/stack-overflow/posts/{postId}/revisions

1 credit Failed requests are free

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About this endpoint

GET /v1/stack-overflow/posts/{postId}/revisions returns the edit history of a post, newest first, up to 100 per page. Each revision has guid, number, type (single_user or vote_based), postId, postType, createdAt, author, comment (the edit summary as plain text; markup on bounty and bot rows is stripped), isRollback, setCommunityWiki, title, tags, bodyHtml, previousTitle, previousTags and previousBodyHtml.

A rollback and a close or lock are vote_based and can have no single author, so author is null there. A post that does not exist is not_found. Page with page.nextCursor while page.hasMore is true, and check limitReached on a list that stops at the ceiling.

Stack Overflow Revisions API FAQ

Can I see what the post said before an edit?

Yes. Each revision carries previousBodyHtml, previousTitle and previousTags beside the post-edit bodyHtml, title and tags.

How many credits does a revisions page cost?

Pricing is documented on the operation in the API registry (shown on this page). Confirm on every response with meta.creditsCharged: that field is the billing source of truth. Each paginated page is a separate billed request.

Why is a revision's author null?

A vote_based revision, such as a rollback or a close, has no single author. single_user revisions name the editor in author.

Does it work for answers?

Yes. Pass an answer id as postId. read postType to see whether the revision belongs to a question or an answer; title and tags are empty for answers.

Other Stack Overflow endpoints