# API Key Issuance Guide

Issuing an API key increases the default RPS (Requests Per Second) limit. When requesting an API key, please provide your estimated call volume, and we will determine an appropriate rate limit accordingly.

However, in general cases, the API provides sufficient speed and limits (2 RPS) even without an API key.<br>

Please submit the form via [`Dexlab API Key Request`](https://forms.gle/pnuAjVNsM8Mm6LSg7)

Provide details about your intended use and expected request limits.

After review, we will issue the API key to the requested email as soon as possible.

{% hint style="info" %}
For the Pro API, the x-api-key header must always be included in every request.
{% endhint %}

**Headers**

* Open API: `https://open-api.dexlab.space/`
  * *There is a rate limit of 2 RPS. If you need more, get a free API key.*
* Pro API( API key required ): `https://pro-api.dexlab.space/`
  * *The rate limit is increased and free.*

| Name         | Value              |
| ------------ | ------------------ |
| Content-Type | `application/json` |
| x-api-key    | `your api key`     |

*The Pro API functions the same as the standard API, except for differences in the header and endpoint.*


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.dexlab.space/developer-hub/token-and-swap-apis/api-key-issuance-guide.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.