> For the complete documentation index, see [llms.txt](https://getsquish.gitbook.io/squish/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://getsquish.gitbook.io/squish/resources/implementations.md).

# Implementations

The timestamped contact sheet is a format, not a product. These are the known implementations that produce it:

| Implementation              | Where                                                                                                                                       | Notes                                                                                                          |
| --------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- |
| **Squish CLI + MCP server** | [github.com/getsquish/squish](https://github.com/getsquish/squish) · [`@getsquish/squish`](https://www.npmjs.com/package/@getsquish/squish) | The reference implementation — this repo. Local, free, every density.                                          |
| **Hosted API**              | `api.getsquish.app`                                                                                                                         | The same engine, remote — for CI, serverless, or machines without ffmpeg. Intentional upload, prepaid credits. |
| **Web app**                 | [getsquish.app](https://getsquish.app)                                                                                                      | Runs entirely in the browser — no install, nothing uploaded.                                                   |

Consumers are any vision model handed a sheet — plus agents running the [navigation loop](/squish/the-primitive/the-navigation-loop.md) over one of the producers above.

## Build your own

The sheet format — grid geometry, sampling, timecode stamping, and the invariants that make addresses absolute — is specified in [the sheet format spec](/squish/reference/sheet-format.md). Anyone is welcome to build a compatible producer (another language, another runtime) or consumer (a viewer, an indexer, an agent framework).

If you're building one, open an issue on [github.com/getsquish/squish](https://github.com/getsquish/squish/issues) to coordinate — we'd like this page to grow.


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