# ghostagg > Slot game aggregator and remote game server. Casinos list real provider slots and mint > game sessions through the operator API (bearer API key); ghostagg settles every round > against the casino's own wallet through signed callbacks (debit, credit, rollback). > Amounts are micro-units (1,000,000 = one currency unit); the casino does all money arithmetic. ## Docs - [Overview](https://localhost:3250/docs/md/overview): What ghostagg does, the two APIs and how a round flows. - [Quickstart](https://localhost:3250/docs/md/quickstart): From an API key to a game running against your wallet in five steps. - [Wallet API](https://localhost:3250/docs/md/wallet): The five signed callbacks your server implements, settlement and refusals. - [Fairness](https://localhost:3250/docs/md/fairness): The seed commitment, the draw, the round record and versions. - [API reference](https://localhost:3250/docs/md/reference): every endpoint, field and response, generated from the live OpenAPI document. ## Machine-readable - [OpenAPI 3.1](https://localhost:3250/openapi.json): the operator API and the wallet receiver contract. - [llms-full.txt](https://localhost:3250/llms-full.txt): all documentation in one Markdown file. ## Optional - [Portal](https://localhost:3250/portal): API keys, plan and balance (sign-in required).