> 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/networking-options/aws-privatelink.md).

# AWS PrivateLink

Institutional clients requiring **low-latency, private connectivity** to the Openfeed platform can establish a direct connection using **AWS PrivateLink**.

AWS PrivateLink enables private communication between your AWS Virtual Private Cloud (VPC) and Barchart’s Openfeed infrastructure without routing traffic over the public internet.

This architecture provides several advantages:

* **Lower latency** through direct network paths
* **Improved security** by avoiding public internet exposure
* **Simplified network configuration** with private VPC endpoints
* **Predictable connectivity** for production trading and analytics systems

#### How It Works

AWS PrivateLink creates a **private endpoint** within your VPC that connects directly to the Openfeed service hosted in Barchart’s AWS environment.

All traffic flows through the AWS backbone network:

**Client VPC Endpoint → AWS PrivateLink → Barchart Openfeed Service**

Because traffic never traverses the public internet, the connection benefits from AWS’s internal networking performance and security controls.

#### When to Use PrivateLink

PrivateLink connectivity is recommended for clients who:

* Require **low-latency access** to streaming market data
* Operate **production trading infrastructure in AWS**
* Need **private network connectivity for compliance or security reasons**
* Prefer **dedicated cross-account connectivity** rather than internet-based access

#### Provisioning

To establish a PrivateLink connection, clients must:

1. Request a **PrivateLink endpoint service name** from Barchart Institutional Support.
2. Create a **VPC Endpoint** in their AWS environment.
3. Configure security groups and routing to allow Openfeed traffic.
4. Receive approval from Barchart to activate the connection.

Once the endpoint is approved, Openfeed services can be accessed through the private VPC endpoint.

Example

<figure><img src="/files/w5SEnJgJRrA3vEk9cobE" alt=""><figcaption></figcaption></figure>

<sub>Image credit: Amazon AWS PrivateLink; "</sub>[<sub>What is AWS PrivateLink</sub>](https://docs.aws.amazon.com/vpc/latest/privatelink/what-is-privatelink.html)<sub>"</sub>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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/networking-options/aws-privatelink.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.

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.