dispute.markets is a sandbox payment gateway for chargebacks, evidence, and reports — purpose-built for agentic workflows. Real product surface, fake data, no consequences.
Free to use. No card required. Synthetic data only.
Visa · reason 10.4
$487.50 USD
Respond by
14 days
Network case
VROL-A92F1B30
Cardholder
Al Capone
Card
•••• 4242
12+
Visa & Mastercard reason codes modeled
15
MCC categories in the generator
10
Dispute lifecycle states tracked
<1s
Reset the entire dataset in
Every surface in dispute.markets mirrors what merchants see in production gateways — transactions, disputes, evidence, reports — so your agents and your team learn against the real shape of the problem.
Synthetic data
Geo-consistent IPs and issuing banks, Luhn-safe card numbers, MCC-coded merchants, and a card-expiry distribution that lines up with the response code. Generate thousands of transactions with knobs for dispute rate, reason-code mix, currencies, and time range.
Lifecycle
Visa & Mastercard reason codes, RFI → chargeback → arbitration transitions, evidence uploads, response deadlines.
Agents
Same data, same lifecycle, same audit trail. Let your agent click through the portal like a human, or skip the chrome and call REST directly.
Dev panel
Generate, inspect, advance lifecycle, and reset state without leaving the portal. First-class UI, not a settings page.
RBAC
Owner, full-access, disputes-only, reports-only, view-only. Synthetic accounts inherit a role and can never escalate.
Webhooks
HMAC-signed events to your endpoint on every dispute, payment, and evidence action. Retried on failure, replayable from history.
Production-grade data shape. Production-grade lifecycle. None of the consequences. Every transaction, dispute, and event in dispute.markets is generated by us and ends inside your tenant — no card networks touched, no acquirer relationship needed, no real cardholders involved.
You run scenarios that would be too expensive, too sensitive, or simply too slow to run in production, then wipe the slate clean and run them again. No strings, no contracts, no audit footprint outside the sandbox.
Data leaks?
we'll make them disappear.
The browser portal is a thin client over dispute-api. Your agents can click through the UI like a human, or skip the chrome and call the API directly — whichever fits the workflow. Same data, same events, same audit trail.
01
Create an account, name your company, and you land on a clean tenant with the dev panel ready to go.
02
Pick a transaction count, dispute rate, currency, and time range. The generator hands you a believable dataset in under a second.
03
Your agent can operate the portal UI or call the API directly — pick whichever fits the workflow. Actions appear in the dashboard in real time either way.
Every payment, dispute, and evidence record is synthetic. Cards never authorise; webhooks fire to your endpoints only. Resets in the dev panel wipe the tenant clean — no cross-contamination between sessions.
Spin up a workspace, point your agent at the API, and watch the disputes pile up. All synthetic, all reversible.