# About FIX API

## Introduction

Welcome to the Blockhouse FIX (Financial Information eXchange) API! The purpose of this document is to show how the FIX messaging protocol can be used to place orders, receive order updates and trades, replace orders and cancel orders.

### Overview

Our API is based on FIX 4.2 specification. Please reach out to our support for FIX credentials.


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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://blockhouse-app.gitbook.io/blockhouse/fix-api/about-fix-api.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.