> For the complete documentation index, see [llms.txt](https://docs.masqbrowser.com/masq/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.masqbrowser.com/masq/advanced-use/blockchain-service-endpoint.md).

# Blockchain Service Endpoint

To communicate with the blockchain networks, an endpoint is needed to send/receive messages and transactions utilizing the interfacing in MASQ Software, conforming to standard [JSON-RPC format](https://eth.wiki/json-rpc/API) on EVM-compatible chains (Ethereum L2 and Polygon PoS).

This endpoint URL is saved under the `--blockchain-service-url` in the software, and allows you to use your own endpoints instead of public RPC endpoints.

For **live MASQ Browser / Base mainnet** use, configure an HTTPS JSON-RPC endpoint for **Base**.

**Here are providers that offer free and premium accounts that can be used with MASQ Node:**

### [Alchemy](https://www.alchemy.com) (recommended for Base mainnet)

#### Important links:

Documentation: <https://docs.alchemy.com>

Base API: <https://docs.alchemy.com/reference/base-api-quickstart>

### [Infura](https://infura.io)

#### Important links:

Documentation: <https://infura.io/docs/networks/base/base-quickstart>

### Nodies (recommended for Base mainnet RPC)

#### Important links:

Documentation: <https://docs.nodies.app/>

#### <https://www.nodies.app/auth/register>

#### Example endpoint pattern: Sign up at <https://www.nodies.app/> for free usage and access to Base endpoints.

{% hint style="info" %}
Advanced operators coordinating **Polygon mainnet** peers can use Polygon-focused RPC guides such as [Polygon network documentation](https://docs.polygon.technology/docs/develop/network-details/network/).
{% endhint %}


---

# 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://docs.masqbrowser.com/masq/advanced-use/blockchain-service-endpoint.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.