🛡️ De-identifying LLM reverse proxy

Use AI.
Keep your secrets secret.

Your team pastes client names, API keys, and internal hostnames into ChatGPT, Claude and Copilot every day. CSSLTD's gateway sits in front of any LLM and strips that out before it ever leaves the building — then puts it back for you.

Get instant access — £29/mo See how it works

Token delivered to your inbox within minutes of purchase · cancel anytime after 30 days

Your teamreal names, real secrets
CSSLTD Gatewayredacts & pseudonymises
Any LLM providersees placeholders only

What actually leaves the building

Four layers of protection, on every single request — not a policy document nobody reads.

Origin anonymisation

The provider only ever sees one origin — this gateway. Your host, IP and headers never reach them.

Secret redaction

API keys, private keys and high-entropy tokens are stripped irreversibly before they leave the perimeter.

Reversible pseudonymisation

Client, product and host names become neutral placeholders on the way out — and are restored on the way back.

STRONG mode (AST rename)

Optional: rename developer identifiers inside code blocks — Python natively, JS/TS/Go/Rust via tree-sitter.

From payment to first prompt

No sales call, no onboarding meeting. Three steps, a few minutes.

1

Pay £29/month

Secure checkout via Stripe. No contracts, no setup fee — just the monthly access fee.

2

Get your token by email

The moment your payment clears, we generate a personal access token and send it straight to your inbox.

3

Paste it in and go

Drop the token into the CSSLTD gateway app, and every request from that point on is protected.

One price. No metering.

No per-token billing, no surprise invoice at the end of the month.

CSSLTD Gateway Access
£29/ month
Billed monthly · 30-day minimum term · cancel anytime after
  • Personal access token, delivered by email in minutes
  • Full de-identification pipeline on every request
  • Streaming responses, OpenAI-compatible API
  • We never log prompt or response content
  • Branded web app included — nothing to install
Get instant access

Questions

How fast do I actually get access?

Your token is generated and emailed automatically as soon as Stripe confirms your payment — typically within a couple of minutes. No manual approval step.

What happens to my data?

Secrets are redacted irreversibly before anything leaves the gateway. Sensitive names are pseudonymised on the way out and restored on the way back — the model provider never sees them. We do not log prompt or response content.

Which model powers this?

Requests are routed to an OpenAI-compatible LLM provider (GLM via z.ai) behind the gateway. You interact with it exactly like any chat model — the privacy layer is invisible in normal use.

Can I cancel?

Yes, anytime after the 30-day minimum term. There's no long-term contract.