Chat, research and work with files for free in your browser. Or run Claude Code on Windows with a prepaid passcode and live usage tracking. No account needed.
A free private chat in any browser, or a paid coding agent on your Windows PC.
Open it in any browser. Ask, upload, run code and edit images in one private chat that is deleted when you close it.
Writing, research, maths and code, with live web search when it needs fresh facts.
Up to 20 files per message, up to 500 MB each: documents, sheets, images, code.
A private sandbox runs your code. HTML pages open in a safe live preview.
Tables, PDFs, charts, diagrams and maths render right inside the chat.
Crop, resize, flip and remove backgrounds, then save a copy.
Save the whole chat and its files as one .zip before you leave.
Ask about today and get answers with links to sources.
Preview, edit and download every file in one place.
Share a photo or screenshot and ask about it.
Stop a reply, keep what was written, edit or try again.
Messages, time, words, code runs and workspace size.
English, French or Arabic, in light or dark.
A small native app that signs you in with a passcode, starts Claude Code on your project and shows your usage live.
No account or password. Enter your passcode once.
Starts Claude Code on your project, powered by Opus 5.5.
Watch tokens, cost and budget left update as you work.
Sound, taskbar flash and a clear warning at 80% and 100%.
Each project opens in its own terminal window.
One small .exe of about 270 KB. No installer, no admin rights.
Open several folders side by side.
Pin the app so your usage stays in view.
Keep several passcodes on one PC, encrypted by Windows.
Quitting asks first while an agent is still open.
Work as long as you need. A session ends when you sign out, or after 24 hours unused.
A passcode is locked to the first PC that signs in.
Real recordings with English narration. Nothing is staged, only the long waits are sped up.
Nyxo Code works with Claude Code. How to install
Pick an amount and pay with USDT. Your passcode appears once the payment is confirmed.
Open Nyxo Code, enter the passcode and choose your project.
Claude Code reads, edits and runs your project while the app tracks every cent.
No account and no chat history kept on a profile.
The full Nyxo Code source is public: eight short C# files you can read or build yourself.
Nyxo2893C03CACF0A9439ABA167DE714D8005819DCD021BB57A30087D31C38593377Not code-signed yet, so Windows may show a warning. Choose More info, then Run anyway. Needs Windows 10 or 11.
Nyxo Web is free. For Nyxo Code, pick any amount once, or a monthly plan for daily work.
Coding every day? Monthly plans give you more →
$12/ 30 days
$5 of usage every day
Up to $150 of usage in 30 days
1 spot left
Choose Comet$25/ 30 days
$12 of usage every day
Up to $360 of usage in 30 days
1 spot left
Choose Quasar$59/ 30 days
$35 of usage every day
Up to $1,050 of usage in 30 days
1 spot left
Choose GalaxyOne daily allowance covers input, cache and output. Unused allowance does not carry over.
| Usage | Anthropic API | Amazon Bedrock | Google Vertex AI | Nyxo Code | You save |
|---|---|---|---|---|---|
| $5 of usage | $5 | $5 | $5 | $2.75 | 45% off |
| $25 of usage | $25 | $25 | $25 | $12 | 52% off |
| $50 of usage | $50 | $50 | $50 | $21.50 | 57% off |
| $100 of usage | $100 | $100 | $100 | $40 | 60% off |
Based on published list prices for Claude Opus 5.5. Every request is metered at the published rates below, the same ones these providers use. You simply pay less for the balance.
| Usage type | Rate per 1M tokens | What it is |
|---|---|---|
| Input | $4 | New messages, files and instructions |
| Cache read | $0.20 | Context the agent rereads (95% cheaper) |
| Cache write | $5 / $8 | Context saved for 5 minutes / 1 hour |
| Output | $20 | Everything the agent writes |
Usage policy: requests refused by the AI model's safety rules count as strikes. 2nd within 24 hours pauses the passcode for 1 hour, 3rd revokes it with no refund. Read the policy
Pay with USDT on BNB Smart Chain (BEP20). No account or contact details needed.
Send USDT on BNB Smart Chain (BEP20) only. Another token or network can lead to permanent loss.
No. Nyxo Web works without an account. Nyxo Code uses a passcode instead of an account and password.
Claude Opus 5.5 by Anthropic. Nyxo Web and Nyxo Code both use it.
Yes, for Nyxo Code. It works with Claude Code, the coding agent from Anthropic, which must be installed on your PC.
A web chat and its files are permanently deleted when you close the tab, start a new chat or the chat ends. Save it as a .zip first to keep it.
Nyxo Web runs one chat at a time. Others wait in a short line, and your chat starts on its own when it is your turn. Each chat lasts up to 15 minutes, and each person can start one chat every 12 hours.
New requests stop and your files are not touched. Top up the same passcode at any time. Monthly plans refill every day at 00:00 UTC.
It stays valid for 12 months from payment. Monthly plans last 30 days, with a fresh allowance each day.
Choose an amount or plan and name your passcode. You get a USDT address on BNB Smart Chain (BEP20) for that order only. Your passcode appears as soon as the payment is confirmed.
No. Each passcode works on one PC only. If you change PCs, ask for the passcode to be moved.
Nyxo Code is not code-signed yet. In the browser, choose Keep. In Windows, choose More info, then Run anyway. You can check the SHA-256 or build it yourself.
Requests refused by the AI model's safety rules count as strikes over 24 hours: 1st a warning, 2nd a 1-hour pause, 3rd the passcode is revoked with no refund.
Only the project folder you choose. Claude Code asks for approval before running commands or making changes, depending on your settings.
Free to try. No account needed.