Substack API
Live data for any Substack publication, served straight from the publication's own public API — no key, nothing cached. Substack is the newsletter-and-blogging social platform; this reads a writer's public posts and their engagement. The posts endpoint returns a publication's recent or top posts with the title, subtitle, slug, publish date, post type (newsletter, podcast or thread), audience (free or paywalled), the heart-reaction count, the comment count, the word count and the cover image — Noah Smith's Noahpinion shows posts pulling hundreds of reactions and dozens of comments. The search endpoint searches a publication's archive by keyword. The post endpoint returns one post in full, including a plain-text excerpt of the body, its reactions and comment count. Point it at any publication by its Substack subdomain (noahpinion) or its custom domain (astralcodexten.com) and it follows the publication wherever it lives. This is the writer-and-post engagement layer for any media-monitoring, newsletter-analytics, reading or social app. Live from Substack, nothing stored. Distinct from dev-community and microblog APIs — this is Substack newsletter posts and their engagement. 4 endpoints.
api.oanor.com/substack-api
