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

# Introduction

> Getting started with the TargetSmarter API

## Welcome to the TargetSmarter API

The **TargetSmarter API** gives you programmatic access to company intelligence, including company lookups, employee sizing, industries, and verified social profiles.

This API is designed for:

* SaaS products enriching leads or accounts
* Sales, marketing, and RevOps tooling
* Data pipelines and internal analytics
* Automated prospecting and segmentation workflows

All endpoints are RESTful, return JSON, and are versioned under `/api/v1`.

***

## API Access & Plans

API access is available to users on the **Professional plan or higher**.

You can provision and manage API keys from your dashboard:

[https://app.targetsmarter.com/settings/api-keys](https://app.targetsmarter.com/settings/api-keys)

Each key is tied to your account and subject to your plan’s usage limits.

Keep your API keys secure. Do not expose them in client-side applications.

***

## Base URL

All requests should be made against the following base URL:

```text theme={null}
https://api.targetsmarter.com/api/v1
```

***

## Authentication

All API endpoints require authentication using a **Bearer token**.

Include your API key in the `Authorization` header of every request:

```bash theme={null}
Authorization: Bearer YOUR_API_KEY
```

Authentication is defined globally in the OpenAPI specification and is automatically applied in the **Try It** playground.

```json theme={null}
"security": [
  {
    "ApiKeyBearer": []
  }
]
```

If authentication is missing or invalid, the API will return a **401 Unauthorized** response.