OLX Poland vs Rappi

OLX Poland's Partner API lets approved integrators create and manage classified-ad listings and handle buyer/seller messaging programmatically. Access runs on an OAuth2 client-credentials flow, confirmed live by an invalid_client error from the real token endpoint, and the older v1 REST resource has been explicitly deprecated in favor of this OAuth-secured surface. Developer access comes through an application and approval process rather than a published self-serve fee.

Rappi's public API lets approved merchant partners manage store menus and orders across its Latin American on-demand delivery platform. Access requires a formal partnership and uses OAuth2 — Authorization Code with PKCE for partner-facing flows, plus Auth0-issued bearer tokens for machine-to-machine calls — confirmed live against its login/token gateway. Each country Rappi operates in runs its own regional API host.