Acts the moment a dispute lands
Event-driven, not a queue you babysit. A processor webhook wakes the agent the second a chargeback is filed — nights, weekends, deadlines and all.
Autonomous dispute-defense agent
An AI agent that fights every chargeback for you.
The moment a dispute is filed, shield-agent's agent pulls the evidence from your processor, store, and helpdesk, writes the network-specific rebuttal, checks its own work, and hands you a case that's ready to file. You review, you submit.
Meet the agent
Not a chatbot. An agent that does the whole job.
It wakes on every new dispute, gathers its own evidence across your systems, reasons through the card-network rules, and self-checks the result — then waits for your sign-off. You stay in command; it does the work.
Gathers its own evidence
It reaches across your processor, store, carrier, and helpdesk, works out what each reason code actually requires, and assembles the bundle itself.
Reasons by network rule
Visa 10.4 is argued differently from Mastercard 4837. The agent picks the right template for the exact code on the exact network and makes only the argument that wins.
Checks its own work
Every draft is validated for invented facts and PII leaks before you ever see it. Low-confidence cases are flagged for a human instead of filed blindly.
Defends your data on local models
Generation runs first on locally-hosted models, with a hosted fallback only when needed — and cardholder data is tokenised before any model sees it.
You approve every filing
The agent never submits behind your back. It hands you a ready-to-file case in the dashboard; one click sends it through the processor's API.
Get started in minutes
Three simple steps to stop losing chargebacks by default.
Connect your payment processor
Link Stripe, Shopify, Braintree, Adyen, Checkout.com, PayPal, Square, or any supported platform in one click.
AI analyzes every dispute
Auto-matches reason codes to network requirements and compiles the exact evidence needed for each case.
Submit and win
Review the drafted rebuttal and submit with one click — network-ready, every time.
Processors
StripeBraintreeAdyen
Checkout.comPayPalSquare
Commerce
ShopifyWooCommerceBigCommerce
MagentoWix
Helpdesks
GorgiasZendeskIntercom
Freshdesk
What it does that a generic LLM doesn't.
Chargebacks are decided by card-network rules, not vibes. shield-agent is built around those rules end to end.
Network-specific rebuttals
Visa 10.4 isn't Mastercard 4837. shield-agent picks the template for the actual reason code on the actual network and pulls only the evidence that defends it.
Cross-source evidence
Order from your commerce platform, fulfilment from your carrier, conversation from your helpdesk, AVS and 3DS from your processor — collated automatically and bundled into one submission.
PII-safe by construction
Cardholder data is never sent to an language model. Names, emails, addresses and IPs are tokenised before generation and rehydrated only after the response is validated.
How it works
From processor webhook to filed rebuttal in minutes, not days — you stay in control and approve every submission.
Connect
OAuth into your processor, commerce platform, and helpdesk. No keys to copy-paste.
Detect
Webhooks pick up every new chargeback the moment it's filed.
Build
The agent assembles the evidence bundle and writes the narrative against the right network template.
Submit
You approve in the dashboard; shield-agent files it through the processor's API.
Free tools, no signup.
Useful on day one whether or not you ever connect an account.
Reason-code decoder
Paste any code (Visa, Mastercard, Amex, Discover) and get the network's plain-English meaning plus the exact evidence types that defend it.
Win-probability calculator
Score a dispute before you spend hours on it. Reason code, evidence on hand, transaction signals — out comes a number.
Chargeback-rate benchmarker
Compare your monthly rate against Visa's VDMP and Mastercard's ECM thresholds before the network does.
Evidence checklist
Generates the document list per reason code so nothing's missing when you submit.
Frequently asked questions
What payment processors do you support?
Stripe, Braintree, Adyen, Checkout.com, PayPal, and Square — plus direct integrations with Shopify, WooCommerce, BigCommerce, Magento, and Wix.
How does the AI help win disputes?
It matches each reason code to the exact evidence requirements for that card network, then drafts a network-specific rebuttal using your own transaction, fulfilment, and helpdesk data.
Is my payment data safe?
Yes. We are PCI-DSS compliant, encrypt all data at rest, and never store full card numbers. Cardholder data is tokenised before any AI processing.
Can I cancel anytime?
Yes. There are no long-term contracts. You can cancel at any time and export your data whenever you like.
Do you offer a free trial?
Yes. Every new account gets a 14-day free trial on the Pro plan, so you can test the full workflow before committing.