# API Matrix > API Matrix (iPhone/iPad app by Chi Hin Lio.) - Source: https://appshunter.io/ios/app/api-matrix/id6779679646 (this page in markdown: same URL + `.md`) - Developer: [Chi Hin Lio](https://appshunter.io/developer/1896516878) - Category: Developer Tools, Utilities - Price: Free - Age rating: 4+ - Requires: iOS 16.4 · 50 MB - Languages: American English - Released: 2026-06-17 - Data updated: 2026-08-01 - User reviews in markdown: https://appshunter.io/ios/app/api-matrix/id6779679646/reviews.md ## What is API Matrix? API Matrix is a privacy-first key vault built for developers who work with multiple AI providers. All your credentials stay on-device, locked behind Face ID or fingerprint. 34 providers supported — including OpenAI, Anthropic, DeepSeek, Gemini etc. Biometric lock — Face ID / fingerprint unlocks your vault automatically Ping test — Validate each key with the correct provider endpoint and auth header Usage & cost tracking — OpenAI, Anthropic, OpenRouter, DeepSeek, DeepInfra One-copy export — curl commands, .env snippets, and OpenRouter config 100% on-device — expo-secure-store, no cloud, no tracking ## Version history (last 5 releases) ### 1.0.5 — 2026-07-01 v1.0.5 — Claude Code & Codex Plan Usage Support Claude Code support: Track Claude Code subscription plan usage with daily/weekly/monthly progress bars and reset timers Codex support: Monitor OpenAI Codex CLI plan usage with hard limits, total usage, remaining credits, and percentage display Reordered provider list: Sorted by mainstream popularity — top LLM APIs and Coding plans prioritized ### 1.0.4 — 2026-06-29 Fixing some bugs and improving performance ### 1.0.2 — 2026-06-24 Bugs fixing ### 1.0.1 — 2026-06-23 - Supporting more providers to usage page ### 1.0 — 2026-06-17 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-01.*