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reversemask

Stateless Reversible PII Vault & Prompt Injection Firewall

Mask PII before LLM → LLM uses safe tokens → Unmask before CRM/Calendar. Zero PII stored. Works with n8n, Make.com, GoHighLevel.

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Input: Raw Client Message

Paste a real SMS, form submission, or webhook payload containing PII.

Optional: GHL/Make contact fields for 100% accurate name masking

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Free Workflow Security Auditor

Paste your exported n8n or Make.com workflow JSON. Scanned 100% in your browser: nothing is uploaded. We flag where unmasked PII flows straight to a third-party LLM.

Platform Integrations (Ready to Import)

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n8n Workflow

Importable JSON workflow: HTTP → /mask → LLM → /unmask → CRM

Download n8n_workflow.json →
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Make.com Blueprint

Scenario blueprint with HTTP modules for /mask, LLM, /unmask

Download make_blueprint.json →
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GoHighLevel Webhook

Custom Values + Webhook actions for /mask, LLM, /unmask in GHL

Read GHL Integration Guide →

Built for Zero Retention

Stateless AES-256-GCM No Redis / No Database 5-min TTL Vault Bundle 80-Rule Scanner fpdf2 + Resend $0 Hosting (Render Free)

Put reversemask in front of your clients

Free Sandbox

$0

Test live on this page

  • ✅ Mask / unmask / guard endpoints
  • ✅ 20 test calls per day
  • ✅ No credit card, no account
Test the demo ↑

By using this sandbox you agree to our Terms of Service, Security Disclaimer, Acceptable Use Policy, DPA, and Privacy Policy.

3 SLOTS THIS WEEK

Founding Agency Pass

$299 lifetime

or $49/mo

  • ✅ Priority onboarding: I wire it into your top client workflow in 24h
  • ✅ GoHighLevel sidebar portal for your client
  • ✅ Automated Monday client compliance certificates
  • ✅ Reversible PII vault + injection firewall on your stack
  • ✅ Direct support: me, not a ticket queue
Get Your Agency API Key →

By purchasing you agree to our Terms of Service, Security Disclaimer, Acceptable Use Policy, DPA, and Privacy Policy.