> For the complete documentation index, see [llms.txt](https://docs.tiny.plus/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tiny.plus/api/concepts.md).

# Working with the API

These pages cover what every endpoint has in common. Read them before you start. The [Endpoints](/api/endpoints.md) pages then cover each record type.

* [Requests, responses and errors](/api/concepts/requests.md): authentication, choosing an account, sending data, what comes back, and what errors look like.
* [Listing, filtering and paging](/api/concepts/listing.md): getting lists of records, and narrowing them down.
* [Record types and your account's fields](/api/concepts/record-types.md): the record types, and how to find the fields, statuses and tags your account uses.
* [Permissions and confidential records](/api/concepts/permissions.md): what a token can see and change.
* [Linking records](/api/concepts/linking.md): connecting records to each other, and people to records.
* [Fair use](/api/concepts/fair-use.md): how to use the API without slowing tiny+ down for everyone else.