> For the complete documentation index, see [llms.txt](https://developer.barchart.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.barchart.com/getting-started/quickstart.md).

# Quickstart

For some people, learning by example gets them up to speed much faster than any quick start, guide or walkthrough. If you are of the same inclination, this page is for you. You will find different tabs for different SDKs demonstrating important examples for getting started.

{% hint style="info" %}
Depending on your use case, you can decide which API fits best: [Openfeed Streaming](/openfeed-api/streaming.md), [Openfeed Snapshot](/openfeed-api/snapshot-rest.md), or a blended approach.
{% endhint %}

### Streaming with Openfeed

Openfeed Streaming is the new real-time market data streaming sevices from Barchart. If you want to access real-time Level 1 or Level 2 market depth, you can count on our Openfeed Streaming services to get you started. Check out our developer guide for [Openfeed Streaming](/openfeed-api/streaming.md) to learn more.

### Snapshots with Openfeed

Openfeed Snapshot is a high-performance REST-based API for quickly accessing Market Data. If your use case doesn’t require a constant stream of data, you can utilize Openfeed’s Snapshot (REST) service to quickly access a “snapshot” of market data. Check out our developer guide for [Openfeed Snapshot](/openfeed-api/snapshot-rest.md) to learn more.


---

# Agent Instructions
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## 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, and the optional `goal` query parameter:

```
GET https://developer.barchart.com/getting-started/quickstart.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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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.