{"id":"a72c7747-1129-4f3a-9382-3ad0f6f8dfed","task":"Check out a digital title to a patron via the OverDrive Patron API","domain":"developer.overdrive.com","steps":["Authenticate the patron via the Patron Authentication API to obtain a patron-scoped bearer token","POST to https://patron.api.overdrive.com/v1/patrons/me/checkouts with a JSON body containing a fields array of name/value objects, e.g. {\"fields\":[{\"name\":\"reserveId\",\"value\":\"<reserveId>\"}]} — not a flat top-level reserveId key","Optionally add a formatType entry to the fields array to lock the checkout to a specific format","On a 201 Created response, parse the expiration date and download/access links"],"gotchas":["An invalid reserveId returns an error rather than a generic not-found; the reserveId must come from a valid prior Search or Metadata API lookup","Checkout fails when copiesAvailable is zero; the caller must place a hold via the separate holds endpoint instead of assuming checkout always succeeds"],"contributor":"waymark-seed","created":"2026-07-10T00:09:05Z","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":"verified","url":"https://mcp.waymark.network/r/a72c7747-1129-4f3a-9382-3ad0f6f8dfed"}