Best Api Keys Apps

250+ iOS apps curated and reviewed

4.4 avg rating

18 free apps

Updated September 2026

The best api keys apps on iPhone average 4.4★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Api Keys Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Cumbersome: AI LLM API Client	Free	4.9★ (79)	No	No	Sep 2026
2	KeyNest - AI API Key Manager	Free	—	No	Yes	Aug 2026
3	API Matrix	Free	—	No	No	Sep 2026
4	HTTPBot: API & HTTP Client	Free	4.5★ (1.3K)	No	Yes	Sep 2026
5	Tester - AI Worker	Free	4.7★ (574)	No	Yes	Sep 2026
6	LLM API Request	Free	—	No	Yes	Jun 2026
7	Keys Tester	Free	—	No	No	Aug 2026
8	KeyAuth LLC	Free	4.2★ (5)	No	No	Sep 2026

Top Picks for Api Keys

Cumbersome: AI LLM API Client by Folding Sky Co

API to ChatGPT, OpenAI, Ollama

Editor's Choice

📊 Productivity

4.9(79 ratings)

Free

Cumbersome: AI LLM API Client screenshot 1

Cumbersome: AI LLM API Client screenshot 2

Cumbersome: AI LLM API Client screenshot 3

Cumbersome: AI LLM API Client screenshot 4

Cumbersome: AI LLM API Client screenshot 5

Cumbersome: AI LLM API Client screenshot 6

Connect directly to AI provider APIs for greater control over model selection and parameters. Compare different AI models, pay per use, and customize responses with advanced features. Supports multiple providers and custom endpoints.

KeyNest - AI API Key Manager by 晨阳段

Secure Vault, Test & Balance

Strong Contender

🛠️ Developer Tools

0.0(0 ratings)

FreeIn-App Purchases

KeyNest - AI API Key Manager screenshot 1

KeyNest - AI API Key Manager screenshot 2

KeyNest - AI API Key Manager screenshot 3

KeyNest - AI API Key Manager screenshot 4

KeyNest - AI API Key Manager screenshot 5

API Matrix by Chi Hin Lio

Worth Considering

🛠️ Developer Tools

0.0(0 ratings)

Free

More Api Keys apps to explore

HTTPBot: API & HTTP Client

API, MCP & WebSocket Debugger

Free

This app allows users to send HTTP/HTTPS requests and connect to WebSockets, making it easy to debug APIs on the go. It supports various response formats, collaboration features, and authentication methods, streamlining API development and testing.

Send HTTP/HTTPS and WebSocket requestsInspect JSON, HTML, and XML responsesImport/export Postman collections

🛠️ Developer Tools

(1.3K)

free with in-app purchases

Tester - AI Worker

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.

Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS APIsPowerful GraphQL editor with query, mutation, subscription supportWebSocket testing tool for WS and WSS connections

Your API key, no subscription

by PUNCAK NIAGA BERSAMA SDN. BHD.

by Nelson Cybersecurity LLC

Free

An open-source authentication system offering cloud-hosted subscription plans. It provides client SDKs for multiple programming languages, facilitating integration into various applications. Connect with the community via Telegram or explore the code on GitHub.

Open source authenticationCloud-hosted subscriptionsClient SDKs for C++, C#, Python, Rust, PHP, VB.NET

🛠️ Developer Tools

(5)

free

ShieldNode: API keys for AI

Push approval for AI agents

Free

🛠️ Developer Tools

(0)

SageChat: Private AI Chat

Your Keys. Any Model.

Free

This AI chat assistant offers private on-device AI and an optional Pro version for hosted AI, voice workflows, and web search. It prioritizes user privacy by securely storing API keys and keeping prompts local.

Private on-device AI chatHosted AI without API key setupConnect custom API keys

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.

Send and analyze API requestsCustomize query parameters, authorization, and headersSupport for four body types

🛠️ Developer Tools

(6)

free with in-app purchases

Keys - Vibe Coders Vault

API Inspector for Postman

Http Client for Rest Bot

by Victor Manuel Puga Ruiz

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.

Interactive API component explorationExplanation of key API conceptsIntroduction to basic API terms

📚 Education

(2)

free

Hapi – API Health Checks

On-device API health checks

This utility app allows users to manually send custom commands to web APIs. It's designed for developers and home automation enthusiasts who need direct control over server interactions and want to view JSON responses.

Send custom commands to web APIsView JSON response resultsManual control for non-automated tasks

🔧 Utilities

(1)

paid

FAQ about Api Keys

What are the best api keys apps for iPhone?

Cumbersome: AI LLM API Client tops our api keys apps ranking as of September 2026, with a 4.9-star average from 79 App Store ratings, and it's free to download.

Are there free api keys apps for iPhone?

Yes — 18 of the top api keys apps we rank are free to download, including Cumbersome: AI LLM API Client and KeyNest - AI API Key Manager.

Does Cumbersome: AI LLM API Client have ads or in-app purchases?

Cumbersome: AI LLM API Client has no ads and has no in-app purchases, according to its App Store listing as of September 2026.

How many api keys apps are on the App Store?

We track 250+ api keys apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

Does Cumbersome require API keys?

Yes, Cumbersome requires you to bring your own API keys from providers like OpenAI, Anthropic, Google AI Studio, or use an OpenAI-compatible endpoint. You pay the providers directly for API access.

How does Cumbersome compare to subscription AI apps?

Cumbersome offers direct API access, allowing you to choose specific models and pay per use, unlike subscription apps that may route requests to cheaper models and hide technical controls.

Best Api Keys Apps

Compare top Api Keys Apps (September 2026)

Top Picks for Api Keys

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