# Cubster > Cubster is an agent-first developer platform on Netlify: hosted file > storage, API keys, and workspaces behind a small SDK and CLI, currently in > private beta. This is the cubster.dev marketing + docs site's agent surface. > Every docs page below also has a raw-markdown mirror at the same path with > a `.md` extension (e.g. /docs/quickstart.md) — no HTML parsing required. ## Docs - [Quickstart](/docs/quickstart/) ([.md](/docs/quickstart.md)) — sign in, install the SDK, upload a file. - [Authentication](/docs/authentication/) ([.md](/docs/authentication.md)) — session, API key, upload grant. - [Workspaces](/docs/workspaces/) ([.md](/docs/workspaces.md)) — the isolation boundary for assets and keys. - [Editor](/docs/editor/) ([.md](/docs/editor.md)) — @cubster/editor, with a live playground on the page. - [Uploads & SDK reference](/docs/uploads/) ([.md](/docs/uploads.md)) — the full @cubster/assets client surface. - [CLI reference](/docs/cli/) ([.md](/docs/cli.md)) — @cubster/cli commands, flags, config, exit codes. - [REST reference](/docs/rest/) ([.md](/docs/rest.md)) — the plain HTTP API; anything that can make a request can upload. ## Other pages - [Changelog](/changelog/) — real release notes (seeded from @cubster/editor; more to come). - [Privacy](/privacy/) — TODO(content): not yet written. ## The API itself The authoritative, machine-readable API reference (all endpoints, auth, limits) lives on the app: https://app.cubster.dev/llms.txt ## Waitlist The private beta is invite-gated. `POST https://app.cubster.dev/api/v1/waitlist` with `{ "email": "..." }` to join — see https://app.cubster.dev/llms.txt for the full contract.