Protect against How it works Setup Features Pricing Enterprise ↗

Mastiff Chat

Protect your shop against AI abuse

Shopify AI Compliance Guardrails

Full AI chatbot functionality, with added protection against leaks, sensitive data exposure, and prompt injection.

See Pricing

Protect against

Mastiff installs guardrails between your Shopify store and your AI chatbot.

Prompt injection

Detect hidden instructions smuggled into a customer message or fetched content that try to hijack your chatbot. Mastiff screens every input and blocks manipulation before it reaches the model.

Sensitive data exposure

Prevent customer personally identifiable information (PII), internal pricing, or confidential records from slipping into a reply. Mastiff checks each response against your store's sensitive-data rules and stops leaks.

Improper output handling

Block unvalidated model output (raw markup, scripts, or unsafe links) from reaching your customers. Mastiff inspects every response before it's shown.

System prompt leakage

Restrict the bot from revealing its hidden instructions or guardrail logic when probed. Mastiff detects extraction attempts and keeps the system prompt private.
Chat widget refusing a request for the store's API key and profit margins
3
Guardrail layers
2
Input & Output Screened
0
Sensitive data stored

How it works

Diagram of guardrails screening incoming questions and outgoing answers on both sides of the AI chatbot

All incoming and outgoing messages are evaluated for potential abuse.

01

Keyword Check

Instant pattern matching against your configured blocklist. Zero latency, so it stops obvious violations before anything else runs.
Instant
02

Snapshot Check

Compares the request against your store's sensitive data registry and role-based access rules. Per-store, per-role policy enforcement.
Per-store
03

Semantic Evaluation

Semantic evaluation analyzes intent, tone, and context. Catches indirect extraction attempts, multi-turn manipulation, and complex policy violations.
AI-powered

Customized protection for your store

Setup takes minutes, with no code and no developer required.

01

Install from the Shopify App Store

Add Mastiff from the Shopify App Store. Your account and API key are created automatically.
No code
02

Turn on the chat widget

Enable the Mastiff embed in your theme editor. The widget appears on your storefront instantly, styled to match your brand.
Theme editor
03

Set what to protect

Mastiff seeds sensible defaults on install. Add your own keywords and sensitive data anytime from your store settings.
Your rules
Compliance settings page with blocked keywords, a custom sensitive data registry, and a message length limit

Full AI chatbot functionality

Chat widget answering a customer question with a list of in-stock snowboards from the live catalog

Mastiff Chat is a complete Shopify storefront assistant, not just a filter.

Answer product questions

Searches your live catalog to help shoppers find the right item, check details, and compare options.

Look up orders

Customers check order status with their order number and the email on the order (both are required, a deliberate ownership check) and self-serve the most common support requests.

Speak in your voice

Conversational, on-brand replies, with the bot name and tone you choose for your store.

Always guarded

Every message is screened coming in and going out, so full functionality never costs you control.

Audit every decision

Every block and redaction is logged with the layer that caught it, the rule that fired, and a risk score, so you always know why a message was stopped.

Complete audit trail

Review recent flags right from your store settings, with plain-language reasons for every AI decision.

Privacy-safe logs

Log entries are sanitized before they are stored, so customer emails and personal details stay out of your audit history.
Recent Flags audit log listing blocked messages with the guardrail layer and risk score for each

See it working

Data and statistics dashboard showing the share of messages answered normally and threats blocked by layer

A live dashboard shows how much of your chat traffic is answered normally, and what the guardrails caught.

Threats by layer

See which layer is doing the work: instant keyword blocks, store policy checks, or AI semantic evaluation.

Counts that matter

Messages screened, blocks, and redactions, tracked for the current period and since install.

Pricing

Basic
$49/month
7-day free trial
2,000 messages/monththen $0.03 each
  • Full AI chatbot functionality
  • Three-layer compliance guardrails
  • Evaluate every message
  • Customized protection for your shop
Free Trial
Pro
$79/month
7-day free trial
3,250 messages/monththen $0.025 each
  • Everything in Basic
  • Instantly reject repeat abuse
  • Advanced compliance reporting
  • Priority support
Free Trial

Need an enterprise or custom deployment? Explore Mastiff Defense →