Engineered for speed.
Fortified by zero-knowledge math.
FastSTNex replaces sluggish email attachments and intrusive cloud storage logins with high-throughput encrypted transfers, scheduled release triggers, and automated ephemeral shredding.
50GB Gigabit Chunking
Files stream across multiple concurrent parallel HTTP/2 byte slices. If a network blip occurs, only the affected slice re-attempts without restarting the entire file payload.
- Up to 50GB per individual transfer
- Exponential backoff retry handler
- Zero server bandwidth throttling
Client-Side Zero-Knowledge
Browser-native Web Crypto API encrypts raw bytes with AES-GCM-256 before upload. The secret key is isolated to the URL hash fragment (#key=...), invisible to our servers.
- NIST-approved AES-256 Galois/Counter Mode
- Server never touches unencrypted data
- Cryptographic tamper authentication
Precision Scheduled Release
Time your deliverable perfectly. Seal contracts, embargoed press releases, or project assets until an exact future date, time, and recipient timezone.
- Automatic timezone synchronization
- Live countdown gate for recipients
- Pre-upload with deferred unlocking
PIN & Recipient Security Gates
Protect deliverables with custom 4-12 digit passcodes or mandate one-time email OTP challenge verification before file downloading is permitted.
- Brute-force rate limiting defense
- One-time password (OTP) email gate
- Instant one-click sender revocation
In-Browser Media Previews
Recipients don't need to download massive files to inspect contents. Stream 4K video clips, read PDF pages, and review high-resolution images instantly.
- HTML5 responsive video player
- PDF document reader
- Selective or zip-bundle downloads
Model Context Protocol (MCP)
FastSTNex is built for the AI era. Connect AI assistants (Claude Desktop, Cursor, Antigravity) to create, inspect, and revoke secure file links via stdio JSON-RPC.
- Official `mcp:serve` artisan command
- Programmatic share generation
- Complete RESTful developer API
Why FastSTNex Outperforms Traditional Storage
A direct architectural comparison between FastSTNex and standard legacy cloud solutions.
| Feature | FastSTNex | Traditional Cloud Drives | Standard Email Attachments |
|---|---|---|---|
| Zero-Knowledge Encryption | Yes (Client-side AES-256) | No (Server holds keys & scans) | No (Plaintext in mailboxes) |
| Precision Scheduled Delivery | Built-in with timezones | Not supported | Client-dependent delay |
| Recipient Account Friction | Zero (Instant download) | Forced account sign-up | No account |
| Maximum Transfer Capacity | 50GB per package | Account storage quotas | Restricted to 25MB |
| Automated Data Shredding | Cryptographic shredding | Remains in trash bins | Stored forever in sent mail |
| AI / MCP Integration | Native Model Context Protocol | Third-party plugins needed | Not supported |
Frequently Asked Questions
How does FastSTNex achieve Zero-Knowledge file encryption?
FastSTNex leverages the native Web Crypto API directly within your modern browser. When you drop a file, your device creates a cryptographic 256-bit AES key. The file is encrypted before any data leaves your browser. The decryption key is attached exclusively to the URL fragment identifier (#key=...), which RFC 3986 specifies is never sent to the hosting web server in HTTP requests.
How does precision scheduled delivery work?
When uploading with Schedule mode, you select a target release date, time, and timezone. The payload is encrypted and securely stored, but access tokens are locked until the scheduled timestamp strikes. The recipient page displays an active countdown timer until the package unlocks.
What happens when a transfer link expires or is revoked?
Once the designated expiration timeframe passes, download limits are reached, or the sender clicks Revoke, FastSTNex immediately shreds the physical storage blocks on disk and invalidates the database token. Access becomes permanently impossible.
Can AI models and developer agents interact with FastSTNex?
Yes. FastSTNex provides a dedicated Model Context Protocol (MCP) server runnable via php artisan mcp:serve and full RESTful API endpoints. AI agents can initiate transfers, verify payload integrity, retrieve download statistics, and enforce security policies automatically.
Experience next-generation file delivery
Send up to 50GB now with zero recipient sign-up requirements. 100% free for individual transfers.