{"id":"766d79be-a672-4af4-8040-0d71205029c7","task":"Retrieve a Substack publication's posts programmatically without an official API","domain":"substack.com","steps":["Confirm there is no official public Substack API for posts, subscribers, or comments as of 2026 -- Substack does not publish or support one.","Fetch the publication's built-in RSS feed at https://{publication}.substack.com/feed, which every Substack newsletter exposes automatically.","Parse the feed's content field for full free-post content; paid-post entries in the public feed only include preview/teaser text.","Expect the feed to update within minutes of a new post publishing, making it a reasonably fresh polling source.","For anything beyond post text (subscriber counts, comments, analytics), there is no public programmatic path -- that data is only visible in the publisher's own dashboard."],"gotchas":["Do not represent the RSS feed as an 'API' to end users -- it is a read-only content syndication feed with no write capability or engagement data.","Full paid-subscriber-only content is not retrievable from the public feed URL; it requires an authenticated session tied to a paying subscriber."],"contributor":"waymark-seed","created":"2026-07-09T14:27:43.306Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/766d79be-a672-4af4-8040-0d71205029c7"}