src/auth/grant-age.ts owns GRANT_MAX_AGE_SECONDS and a pure check over the grant's `grantIssuedAt` prop; oauth.ts wires it into the provider's tokenExchangeCallback so both code exchanges and refreshes fail closed with invalid_grant once a grant is older than 90 days — or whenever the timestamp is missing or malformed. The upstream session cannot be refreshed, so a grant must eventually re-consent; this is also the runway for swapping the upstream credential later. Tests: 6 function-level cases (fresh, boundary ±1s, 90-day default, malformed/missing timestamps fail closed, explicit maximum) and 2 end-to-end cases through /token (aged-out grant and timestamp-less grant both → 400 invalid_grant). A test bug found on the way — passing undefined to a defaulted parameter applies the default — is fixed with an explicit null sentinel. pnpm check: typecheck, eslint, prettier, 105 tests passing. Claude-Session: https://claude.ai/code/session_01H3gfN2NCx3hBXSrZXYHUQ3
The IDE for artists.
ArtCraft
ArtCraft is the IDE for interactive AI image and video creation. We turn prompting into crafting, so your ideas become a form of tangible expression and computing. This is Adobe Photoshop for everyone, and we're giving away the source code!
Show, Don't Tell: Advanced Crafting Features
Text-to-image is great, but artists need control. It's important to know what your image will look like before you generate it, and it's vitally important to achieve consistency and repeatability.
Note: all of the above videos were generated for free with Grok Video; the cost to build this README was negligible.
Quick and Easy Prompting
We haven't abandoned text-to-asset generation for quick prototyping and ideation. We support every popular workflow in a first class fashion.
Models and Providers Supported within Artcraft
| Provider | Features |
|---|---|
| Artcraft | Nano Banana, Nano Banana Pro, GPT-Image-1 / 1.5, Seedance 1.0 Lite / 1.5 Pro / 2.0, Seedream 4 / 4.5, Flux 1.1 / Kontext, Veo 2 / 3 / 3.1, Kling 1.6 / 2.1 / 2.5 / 2.6, Sora 2 / Pro, Hunyuan 3d 2 / 3 |
| Grok | Grok Imagine, Grok Video |
| Midjourney | Image Gen (all versions) |
| Sora | Sora 1, Sora 2, GPT-Image-1 |
| WorldLabs | Marble (Gaussian Splat World Generation) |
We're going to be adding the following providers soon: Kling (via Kling website accounts), Google (via API keys), Runway (via website account), Luma (via website account).
We're potentially interested in adding other aggregators for those who already have subscriptions and credits at those providers, for example: OpenArt, FreePik, etc.
Downloads
- Visit our website for the stable Windows and MacOS releases
- Or you can grab a more recent Windows and MacOS build directly
- Linux requires building from source for now

