Free scan
Scan for FX slippage — paste balance and payout records
Paste recent `balance.available` and payout records and the detector compares each cross-currency movement’s realised rate against the same-day baseline for its pair, flagging directional losses beyond 0.8% — the outliers that indicate misconfiguration worth fixing rather than spread worth accepting.
Baseline method
Per currency pair per day: comparable transfers establish the day’s baseline; each movement deviates against it. Directional checks flag losses only — windfalls never appear, halving noise while adding nothing actionable. Deviations beyond threshold surface with deviation multiples attached.
Reading outliers honestly
A transfer several multiples off baseline rarely means one bad conversion — it usually means a settlement-currency setting changed and keeps charging every subsequent transfer. Findings say monitoring-only explicitly: converted money stays converted; the win is catching causes while they are still live.
Privacy
The public scanner deliberately does not accept Stripe API keys: an unauthenticated endpoint collecting credentials would have no audit trail and no revocation path. Key-based monitoring happens only inside accounts where keys are encrypted with AES-256-GCM and revocable by their owners.
Common questions
Windfalls flagged?
Never — directional logic exists precisely so the queue contains only actionable losses.
Mixed currencies in one paste?
Baselines form per pair automatically; mixed inputs are the normal case, not an edge case.