Hackerearth

API

API for compiling and running code in multiple programming languages

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Overview

The Hackerearth API (v4) allows users to compile and execute code snippets across 50+ programming languages (Python, Java, C++, JavaScript, etc.). Core endpoints include code compilation (to validate syntax) and execution (to retrieve output, errors, or execution time). Requests and responses use JSON format. Use cases: Integrate into educational platforms for interactive coding lessons, coding interview tools to evaluate candidates' code in real time, or developer portals to let users test snippets without local setup.

Example Integration (JavaScript)

script.js JS

fetch('https://www.hackerearth.com/docs/wiki/developers/v4/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

  • Supports 50+ programming languages
  • RESTful architecture
  • JSON request/response
  • Code compilation & execution
  • Detailed error logs

Frequently Asked Questions

? Is Hackerearth API free to use?

Yes, it offers a freemium model—free tier with limited requests, and paid plans for higher volume and additional features.

? Does it require an API Key?

Yes, all requests to the Hackerearth API need authentication via an API key obtained from the developer portal.

? What is the response format?

The API uses JSON for both requests and responses, including details like execution status, output, error messages, and language metadata.

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Tool Info

Pricing Freemium
Category Programming
Platform Public API

Pros

  • Extensive language coverage
  • Easy-to-use endpoints
  • Freemium tier available
  • Useful for edtech and coding tools

Cons

  • Free tier has usage limits
  • Requires API key authentication
  • No support for advanced IDE features

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