HeaderX vs AI Usage Limits

HeaderX injects custom HTTP request headers into your Safari browsing session — the essential companion for web developers, API testers, and QA engineers. Point HeaderX at your development environment, define your headers once, and flip them on whenever you need them. No proxy setup, no configuration files, no leaving the browser. DEFINE HEADERS AS JSON Describe your headers in a simple JSON editor — paste an entire set at once: {"X-Debug-Mode": "enabled", "Authorization": "Bearer dev-token"} Or use the array format to keep headers saved but individually switched off. TWO VIEWS, ONE TOGGLE Edit as raw JSON or flip to List view, where every header gets its own checkbox. The master toggle in the corner turns everything on or off instantly — your configuration stays saved either way. REUSABLE PROFILES Save named header sets — one per project, environment, or test scenario — and switch between them in two clicks. FEATURES • One-tap master toggle • JSON editor and checkbox list views • Per-header enable/disable • Named profiles for quick switching • Settings persist across browser restarts • Works in Private Browsing (optional) GOOD TO KNOW Standard header names (Authorization, Accept-Language, User-Agent, and other HTTP-spec headers) are applied to all requests through Safari's native rule engine. Custom header names (X-My-Header and similar) are applied to fetch and XHR requests made by web pages — a Safari platform constraint on custom names in network rules. For typical API-debugging workflows, this covers exactly the requests you care about. Headers apply to every site while the toggle is on — remember to switch off when you're done testing, especially with authentication headers. PRIVACY FIRST Everything stays on your device. HeaderX collects no data, phones home to no one, and contains no analytics. What you configure is nobody's business but yours.

See how much of your AI allowance you have used, and when it resets, without opening a single dashboard. Every provider hides your remaining quota somewhere different. AI Usage Limits puts them on one screen — and on your Home Screen and Lock Screen. SUPPORTED SERVICES • Claude — session (5-hour) and weekly windows • ChatGPT / Codex — rate-limit windows • Grok — credit usage • Cursor — plan usage • OpenRouter — credit limit and balance WIDGETS • All Providers — everything you have connected, at a glance • Single Provider — one service in full detail, with reset times • Home Screen and Lock Screen sizes, including inline and circular • Every widget shows when it last updated, and flags stale figures rather than passing them off as current TRY IT FIRST Not ready to connect an account? Turn on sample data during setup or in Settings and the app fills itself — dashboard and widgets — with made-up figures so you can see exactly what you would get. BUILT TO BE BORING ABOUT YOUR DATA • No account, no server, no analytics, no ads, no tracking • You sign in on each provider's own page in Safari — the app never sees your password • Credentials are stored in your device Keychain and sent only to the provider they belong to • The app asks for the narrowest access it can. Its Claude token can read your usage and cannot send prompts or spend your allowance • "Delete all data" removes every credential, cached figure and preference from your device • About → Privacy & connections lists exactly what each service is asked for FREE AND OPEN SOURCE No ads, no subscription, no paid tier. The whole app is on GitHub — read exactly what it does and what it sends. PLEASE NOTE This is an independent app and is not affiliated with, endorsed by, or sponsored by Anthropic, OpenAI, xAI, Anysphere or OpenRouter. Except for OpenRouter, it reads usage endpoints those companies have not documented, so a service can change and temporarily stop reporting. Figures are indicative — your provider's own dashboard is authoritative, and you should not rely on this app for billing decisions.