# Getblock (Node infra)

[Getblock](https://getblock.io/) is a commercial Web3 infratructure provider offering JSON-RPC access to blockchain networks with high rate limits. 

Getblock supports both Cronos zkEVM and Cronos EVM (mainnet only).

[Visit Getblock to obtain your API key](https://getblock.io/).

### Deployment status

* :white\_check\_mark: **Cronos zkEVM Mainnet (Chain-id : `388` )**

Available.

* **❌** **Cronos zkEVM Sepolia Testnet (Chain-id : `240` )**

Not available.


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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-zkevm.cronos.org/for-developers/developer-tools/getblock-node-infra.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.