For marketplaces, collection apps and shops
Let your collectors grade their own books
Your users photograph a book in your app and mark it with Ruffgrade’s guided flow. Ruffgrade measures the marks, takes a second look and does the math. The report lives on ruffgrade.com, so buyers trust it.
How it fits
One assessment, a handful of calls
- Create
- Photos and corners
- Owner marks
- Second look
- Questions
- Grade and report link
POST /v1/assessments/{id}/share
{
"code": "7KQ2M9XH4P",
"display": "RG-7KQ2M-9XH4P",
"url": "https://ruffgrade.com/r/7KQ2M9XH4P",
"cardUrl": "https://ruffgrade.com/r/7KQ2M9XH4P/card.jpg",
"sharedAt": "2026-10-07T05:12:44.000Z",
"current": true
}Neutral by design
Reports made through your app still live at ruffgrade.com/r/CODE. That’s what makes them worth showing to a buyer.
Versioned
Every result names the version of the rules that did the math. A change never alters a report that’s already shared.
Your brand, our record
Show the grade and the marked flaws in your own design, link to the full report, or add the card to the listing’s photos.
Who it’s for
Partners
Collection apps
Make a report from a book you already track. Shelfcache is the first partner.
Marketplaces
Sellers attach reports to listings, and buyers check the book against them when it arrives.
Shops and pressers
A dated record of a book’s condition at intake, and before and after pressing.