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Track ChatGPT, Claude, Gemini & Perplexity token usage, costs, and a local conversation log. Free 24hr trial, then $9.99 one-time. 💡 NEVER GET SURPRISED BY AN AI BILL AGAIN. You've felt it before. You open ChatGPT, Claude, Gemini, or Perplexity. You start chatting. You lose track. Then, at the end of the month, a bill arrives — and you have no idea where all those tokens went. TokenWatch AI fixes that. It's a privacy-first Chrome extension that works as a real-time cost meter directly inside your AI chat interfaces. As you type and read responses, it estimates exactly how many tokens you're consuming and translates that into dollar figures — live, on-screen, no API key or account required. Think of it as the fare meter you wish your AI subscriptions came with. ━━━━━━━━━━━━━━━━━━━━━ 🔍 WHAT IT TRACKS ━━━━━━━━━━━━━━━━━━━━━ TokenWatch AI works seamlessly across the four most popular AI chat platforms: ChatGPT (chatgpt.com) Claude (claude.ai) Gemini (gemini.google.com) Perplexity (perplexity.ai) A clean, unobtrusive sidebar slides into each chat page automatically. No setup. No sign-up. No API key. Just install, open any supported platform, and start tracking instantly. ━━━━━━━━━━━━━━━━━━━━━ 📊 LIVE USAGE DASHBOARD ━━━━━━━━━━━━━━━━━━━━━ Every conversation is measured in real time: → Input tokens (your prompts) → Output tokens (the AI's responses) → Total tokens for the active conversation → Estimated dollar cost, calculated live Usage is automatically broken down across four time windows — Today, This Week, This Month, and Lifetime — so you always know where your consumption stands, not just for one session, but across your full history of AI use. ━━━━━━━━━━━━━━━━━━━━━ 📈 TREND CHARTS & MONTH-END PROJECTIONS ━━━━━━━━━━━━━━━━━━━━━ The Analytics dashboard shows a visual breakdown of your token spending over the last 7 days, 30 days, or all time — togglable between daily, weekly, and monthly views. Based on your average daily usage, TokenWatch AI also calculates a projected month-end cost so you can spot a trend before it becomes a bill. You'll also see a Platform Weights breakdown showing how your usage splits across all four providers, plus a Symmetry Analysis comparing how many tokens you spend on prompts versus responses. ━━━━━━━━━━━━━━━━━━━━━ ⚡ PROMPT EFFICIENCY SCORE & SMART AI GUARD ━━━━━━━━━━━━━━━━━━━━━ This is where TokenWatch AI goes beyond tracking and starts actively saving you money. Every prompt you send is automatically scored for efficiency on a 0–100 scale. The analyzer looks for: Polite filler words that waste tokens ("please," "could you," "kindly," "as an AI") Vague subjective modifiers ("very," "really," "extremely," "basically") Repetitive phrasing and duplicate vocabulary Prompt length that could be consolidated Over-formatted multi-line structures that inflate context Detected fluff is flagged as removable tags directly in the sidebar. One click removes them — fewer tokens sent, same quality output. The score turns green for efficient prompts, amber for improvement potential, and red for prompts that could be significantly trimmed. ━━━━━━━━━━━━━━━━━━━━━ 🧪 DRAFT LAB — SANDBOX TOKENIZER PLAYGROUND ━━━━━━━━━━━━━━━━━━━━━ Before you send an expensive prompt to a paid model, test it here first. The Draft Lab is a built-in sandbox where you can paste or type any text and instantly see the estimated token count, estimated cost by platform, and an efficiency score with fluff detection — all completely offline, with no calls to any external API. Perfect for prompt engineers, power users, or anyone fine-tuning a complex system prompt before burning tokens on it. ━━━━━━━━━━━━━━━━━━━━━ 💰 FULLY CUSTOMIZABLE RATE CARDS ━━━━━━━━━━━━━━━━━━━━━ Default rates (per 1M tokens, input / output): ChatGPT: $10.00 / $30.00 Claude: $15.00 / $75.00 Gemini: $7.00 / $21.00 Perplexity: $5.00 / $15.00 Every rate is editable to match your actual plan. Currency support: USD, EUR, GBP, AUD, JPY. ━━━━━━━━━━━━━━━━━━━━━ 📜 SEARCHABLE HISTORY LOG & CSV EXPORT ━━━━━━━━━━━━━━━━━━━━━ Every conversation is automatically logged with timestamp, platform, input/output token counts, total tokens, and estimated cost. Logs are searchable by keyword and filterable by provider. Export everything to CSV in one click — useful for expense reports, client billing, or your own tracking spreadsheet. ━━━━━━━━━━━━━━━━━━━━━ 🔒 PRIVACY BY DESIGN — ZERO DATA TRANSMISSION ━━━━━━━━━━━━━━━━━━━━━ TokenWatch AI operates 100% locally. It never reads your prompt text to send anywhere. It has no telemetry servers, no analytics scripts, no remote database, and no tracking APIs of any kind. Everything — every token count, every cost figure, every conversation log — lives exclusively inside your browser's sandboxed local storage. It stays on your device. It goes nowhere. When you uninstall the extension, your data is gone permanently, because nothing was ever sent to a server in the first place. The only external connection the extension ever makes is a lightweight license verification check with ExtensionPay. Your chat content is never involved. ━━━━━━━━━━━━━━━━━━━━━ ✅ FEATURES AT A GLANCE ━━━━━━━━━━━━━━━━━━━━━ ✔ Real-time token & cost tracking — ChatGPT, Claude, Gemini, Perplexity ✔ Prompt Efficiency Score with one-click fluff removal ✔ Draft Lab sandbox — test any prompt before sending it live ✔ Today / Week / Month / Lifetime usage breakdowns ✔ Month-end cost projection based on your 30-day average ✔ Visual trend charts with daily, weekly, and monthly views ✔ Platform weight breakdown across all four providers ✔ Input vs. output symmetry analysis ✔ Fully editable rate cards per provider ✔ Multi-currency display (USD, EUR, GBP, AUD, JPY) ✔ Searchable, filterable conversation history log ✔ One-click CSV export ✔ 100% local — no telemetry, no servers, no tracking ✔ No account, no API key, no login required ✔ One-time lifetime purchase — no subscription ━━━━━━━━━━━━━━━━━━━━━ 💳 PRICING ━━━━━━━━━━━━━━━━━━━━━ TokenWatch AI includes a free trial. After the trial period, a one-time lifetime license unlocks permanent premium access — no monthly fees, no subscription, no renewals. Payment is processed securely through ExtensionPay / Stripe. Already paid on another device? Use Restore Purchase to sync your license by email. ━━━━━━━━━━━━━━━━━━━━━ ⚙️ PERMISSIONS EXPLAINED ━━━━━━━━━━━━━━━━━━━━━ storage — saves your settings, usage history, and license state locally on your device activeTab — injects the cost-tracking sidebar into supported AI chat pages alarms — runs background license checks on a schedule Host access is limited strictly to chatgpt.com, claude.ai, gemini.google.com, and perplexity.ai. TokenWatch AI cannot access any other website. ━━━━━━━━━━━━━━━━━━━━━ 📝 A NOTE ON TOKEN ESTIMATES ━━━━━━━━━━━━━━━━━━━━━ TokenWatch AI uses a character-based heuristic to estimate token counts entirely on-device (approximately 1 token per 4 characters). This provides a strong practical proxy for real-world token consumption without requiring any API connection or access to your conversation content. Figures are estimates intended as a usage guide — actual billing from your AI provider may vary based on their specific tokenizer, system prompts, and plan pricing. Take control of your AI usage. Know what you're spending. Write sharper prompts. TokenWatch AI. We offer a free trial so you can experience TokenWatch AI fully before purchasing. Because of the nature of digital licenses, all sales are final once completed.