# Introduction

> What the Toolzer Hub Developer API is, the base URL, and a first request.

Source: https://docs.toolzerhub.com/docs

The Toolzer Hub Developer API gives you JSON access to public web data —
social profiles and posts, ads libraries, shop and marketplace listings —
across dozens of sources, through one HTTP interface.

## Base URL
```
https://api.toolzerhub.com
```

## Your first request
Get an API key at
[app.toolzerhub.com/signup](https://app.toolzerhub.com/signup), then check your credit balance:

```bash
curl "https://api.toolzerhub.com/v1/credits" \
  -H "x-api-key: $TOOLZERHUB_API_KEY"
```

Successful responses are wrapped in `data`. The exact fields vary by endpoint;
open the matching page in the [API reference](/reference) for its generated
request and response schema.

Failures return a structured `error` object instead.

## Next
* [Authentication](/docs/authentication) — the `x-api-key` header
* [Credits](/docs/credits) — what a request costs and what each plan includes
* [Responses & Errors](/docs/responses-and-errors) — both envelopes, every error code
* [Rate limits](/docs/rate-limits) — what happens when you go too fast
* [API reference](/reference) — every endpoint, generated from the live spec