> ## Documentation Index > Fetch the complete documentation index at: https://docs.clinikehr.com/llms.txt > Use this file to discover all available pages before exploring further. # Versioning > What the version in the URL means, what counts as a breaking change, and how we tell you before one happens. The version is part of the URL, not a header you set: ``` https://api.clinikehr.com/v1/... ``` Everything documented on this site is `v1`. ## What can change without a new version Inside `v1`, we can: * Add a new endpoint. * Add a new field to a response. **Don't fail on a field you don't recognize** — new fields will appear over time as this API grows past inventory. * Add a new, optional request parameter. * Add a new error `code` for a situation that previously didn't have one. None of these should break an integration that ignores what it doesn't understand, which is why that's the one rule worth building in from day one: read the fields you need and leave the rest alone. ## What would require a new version Removing a field, renaming a field, changing what a field means, removing an endpoint, or changing what a `code` means would all be breaking changes. None of that happens inside `v1` without a new version appearing in the URL first, and advance notice before the old version stops answering. ## This is early access This API is new, and covers inventory, connections, and network search today (see the [overview](/index) for the full current picture). Expect it to grow — new resources, new permissions, new endpoints — without those additions breaking anything you've already built against `v1`. If something described on this site ever stops matching what the API actually does, that's a bug in the docs, not a silent change you're expected to detect yourself. A machine-readable OpenAPI 3.1 document mirrors this API's contract and is what generates parts of this site. It is a working document ahead of the guides above, so it can describe an operation before this site does, or before that operation is actually live — **this site is the record of what you can call today; treat anything the document alone claims as not shipped yet.** This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.