# OAccess > OAccess lets developers and AI systems construct Gateway links for exact onchain assets from a current chain slug and token contract or mint. A user completes eligibility checks and any available purchase through the OAccess Gateway. URL pattern: https://buy.oaccess.link/{chain}/{contract-or-mint} Use an exact OAccess chain slug and exact token contract or mint address. Never identify an asset by symbol alone. Preserve Solana mint casing. Link construction does not establish asset existence, endorsement, investment merit, route availability, payment availability or customer eligibility. OAccess checks the current state when the link is opened. ## Documentation - [OAccess link integration](https://buy.oaccess.link/integrate): URL construction, exact identity rules, worked examples, current network reference and availability limitations.