> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kukkingu.software/llms.txt
> Use this file to discover all available pages before exploring further.

# Contracting SDK overview

> Use the TypeScript SDK to call Contracting API endpoints with typed methods and request validation.

Use `@kukkingu/contracting-sdk` to call the Contracting API with typed helpers.

## What you get

* A single client factory: `createContractingSdkClient`
* Typed resource methods for:
  * `addresses`
  * `billables`
  * `clients`
  * `contacts`
  * `contracts`
  * `emails`
  * `health`
  * `invoices`
  * `projects`
  * `tenants`
  * `timeEntries`
  * `users`
* Request body validation through Zod before network calls
* Standardized errors: `ApiClientError` and `ApiClientValidationError`

## Core behavior

* The default API base URL is `https://api.contracting.kukkingu.software/api/v1`.
* You can set global `tenantId` and `token` when you create the client.
* You can override `tenantId`, `token`, `headers`, `query`, and `signal` per request.
* Most endpoints return `{ data: ... }`. The SDK unwraps this to `response.data`.

## Next steps

1. Configure your client in [Client setup](/sdk/client-setup).
2. Learn request options and error handling in [Request options and errors](/sdk/request-options-and-errors).
3. Copy endpoint usage from [Resources and examples](/sdk/resources-and-examples).