For rental shops that take deposits on PayPal
Deposits that settle themselves, fairly.
PayPal holds the deposit when the item leaves. When it comes back, AI compares the pickup and return photos, the customer sees every proposed charge on their own phone, and the rest is released on PayPal right away.
Try both sides: book as a customer in one tab, run the counter in another.
$150 deposit, settled in one tap
The renter accepted the $12 phone holder and questioned the rear light, which the counter waived.
Sample photos are AI-generated for the demo.
How it works
The customer pays the rental fee with PayPal and, in the same approval, lets the shop hold a deposit later. No deposit is taken yet.
Staff photograph the item and tap once: PayPal holds the deposit on the saved wallet. Its 29-day clock starts when the item leaves.
Staff photograph it again. Two independent AI looks compare the photos; people decide; PayPal keeps only the agreed charge and releases the rest.
Why customers can trust it
AI finds. People decide. The customer sees it first.
Automated damage scanners have charged renters for scratches that were never there. Handback is built the other way round: the model can only propose, uncertain findings are never charged, and nothing moves until the person paying has seen the evidence.
Measured on labeled photo pairs
36 AI-generated pairs, 3 runs
- Real changes caught
- 41/42
- Unchanged items charged
- 0/72
55 pairs built on real photos, 3 runs
- Real changes caught
- 63/66
- Unchanged items charged
- 0/99
The real-photo pairs start from freely licensed photos, but the damage in them is still drawn by an image model. Details in eval/README.md.
Two looks must agree
Two separate model calls compare the photos. A charge is proposed only when both see the same thing.
Prices come from your list
The AI points at an entry in the shop's repair price list. It never names an amount.
The customer co-signs
Every proposed charge goes to the customer's phone first. They accept it or question it, in their own words.
Evidence, not vibes
Photos are stored under their SHA-256 hash, and every step is hash-chained with its PayPal ids.
Built on PayPal
One approval at booking. Every later step needs no buyer present.
PayPal releases the unused part of the hold the moment the shop settles, so the customer sees it in their PayPal activity while still at the counter. (When the wallet is funded by a card, the card issuer decides when its pending line disappears.)
- Orders v2: fee capture with vault, deposit AUTHORIZE
- Vault v3: merchant-initiated holds and charges
- Payments v2: final partial capture, void, reauthorize
- Disputes v1: evidence pack from the rental's own record
- JS SDK v6: PayPal button with savePayment
- PayPal-Request-Id on every POST; debug_id in the audit log