Best Api Reference Apps & Games

API Pro

The Simplest API App

Free

This application simplifies understanding of APIs by allowing users to interact with core components. It introduces fundamental API concepts and basic terminology in an accessible way.

PostX - Rest API Client

HTTP API Client

Free

This app allows developers to build and test REST, HTTP, and SOAP APIs directly on their iPhone or iPad. It supports various request methods, authentication types, and body formats, with features for organizing requests and inspecting responses.

Tester - Code, API, Terminal

Developer AI Agent, Any Task

Free

Test various APIs directly from your mobile device. Supports REST, GraphQL, WebSockets, and more, with advanced editors and request customization. Share requests easily and manage cookies and history.

Rest – HTTP API Client

Perform HTTP Requests

Free

Easily perform HTTP requests directly from your mobile device. Supports various body types, syntax highlighting, and detailed response inspection. Import collections and manage project variables for efficient API testing.

REST API Client

REST API and GraphQL Client

Free

This tool allows users to send and analyze API requests with customizable parameters, authorization, and body content. It offers robust search and filtering capabilities for managing saved requests, optimized for iPadOS with keyboard support.

Api token Pricing Calculator

AI API prompt token cost tool

Free

Estimate AI API costs by inputting prompt and response tokens. This tool helps optimize budgets and control expenses for AI projects, offering real-time pricing based on token usage.

API Bot

API calls at your fingertips

Free

This tool empowers mobile developers to build and test APIs directly on their devices. It leverages on-device machine learning to analyze API results and identify patterns, while also allowing for the creation and management of various request types and data formats.

Postman API-First Journey

Escape the monolith.

Free

Navigate a challenging world by dodging obstacles and defeating bugs. Utilize unique powers to advance through levels and reach the API-First World. This game offers an engaging experience focused on strategic movement and combat.

Auth app for Tesla

Tesla token generator

Free

Generate secure Tesla API authentication tokens with this utility. It allows you to keep custom shortcuts alive by providing token access for third-party services. Your credentials are sent directly to Tesla, and tokens are stored encrypted locally.

API-Client Testing

REST API

Free

Send and analyze HTTP/HTTPS requests directly from your mobile device. Save requests to collections for easy reuse and view detailed response information, including headers and round trip time. Customize connection timeout settings for efficient testing.

AI Writer: Email Letter Essay

AI Keyboard, Writing Assistant

Free

This app assists with all your writing needs, from emails and essays to creative content. It offers AI-powered dictation, instant content generation, and a variety of templates to overcome writer's block and enhance your writing.

SmartBox Reference Guide

by Smart Box Technology, LLC

Free

Learn programming concepts through guided lessons. This educational tool breaks down key programming ideas for understanding, not for live coding. Ideal for beginners wanting to grasp fundamental principles.

API Tester REST API HTTP SOAP

Test your API Client HTTP.

Free

This application provides a unified environment for developers and QA engineers to test, debug, and analyze various API types including REST, GraphQL, WebSocket, SOAP, JSON RPC, and XML. It offers features like CRUD operations, authentication support, query validation, real-time interaction, and WSDL file loading for comprehensive API testing.

RestForge - API Client

GraphQL & REST API Client

Free

This app allows developers to build, test, debug, and automate APIs directly from their mobile devices. It supports various HTTP methods, body types, and offers cloud sync, scripting, and SOAP support. Premium features include code export and an analytics dashboard.

API Tester ‎

Test APIs

Free

This tool simplifies API testing for developers and enthusiasts. Organize requests, customize headers and parameters, and send various body types. Supports flexible authentication and allows sharing of test collections.

Python Reference

Offline and on the go

Free

Access comprehensive Python 3.6 documentation and language references offline. Ideal for learning and reviewing Python concepts anytime, anywhere, without an internet connection.

API Debugger

by Guilin Cui

Free

This tool helps developers inspect and understand API response data. It provides a clear interface for debugging and analyzing the information received from APIs, aiding in the development process.