---
title: "Etherscan Developer API Key 🔑"
description: "The Ethereum Developer APIs are provided as a community service and supports both GET/POST requests and a rate limit of 5 requests/sec."
url: https://info.etherscan.com/etherscan-developer-api-key/
tags: ["Developer"]
published: 2019-12-05
updated: 2026-06-21
---

# Etherscan Developer API Key 🔑

> The Ethereum Developer APIs are provided as a community service and without warranty, so please just use what you need and no more.

The Etherscan Ethereum Developer APIs supports both GET/POST requests and a **rate limit of 5 requests/sec**.

To use the API service please create a **FREE Api-Key Token** from within the [ClientPortal->MyApiKey](https://etherscan.io/myapikey) area which you can then use with all your api requests.

You may receive a HTTP 403 error if exceed this limit.

Kindly credit/link back or mention that your app is "**Powered by Etherscan.io APIs"** would be very much appreciated.