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

# Overview

> Reference overview for the Kyckr Companies V1 API — base URLs, authentication, and response format.

This section documents every Companies V1 endpoint, with request parameters, response schemas, and live examples.

New to the API? Start with the [Getting Started guide](/company-v1/guides/getting-started). For what's changed recently, see the [Changelog](/company-v1/api-reference/changelog).

## Base URL

| Environment | Base URL                      |
| ----------- | ----------------------------- |
| Production  | `https://rest.kyckr.com`      |
| Test        | `https://rest.kyckr.com/test` |

## Authentication

Every request requires your API key, sent in the `Authorization` header. See [Getting Started](/company-v1/guides/getting-started) for how to obtain and send your key.

## Response format

V1 responses use `Field`-suffixed property names (for example `responseCodeField`, `responseDetailsField`). Result status is conveyed through `responseCodeField` and `responseDetailsField`, and asynchronous operations return an `orderIdField` you can poll for the result.

<Note>V2 uses clean property names (e.g. `id`, `companyName`) and a different response envelope. If you are starting a new integration, prefer [Company V2](/company-v2/api-reference/overview).</Note>

## Finding your way around

* **[Getting Started](/company-v1/guides/getting-started)** and the other guides — task-based walkthroughs for search, profiles, documents, and orders.
* **API Reference** (this section) — every endpoint, listed below.
* **[Changelog](/company-v1/api-reference/changelog)** — version history for the V1 contract.