Casecomp API
Search listings, get PSA signals, and pre-grade cards programmatically.
https://api.casecomp.xyzSign in to get your API key and start building
No key needed for demo data. Append ?demo=true to any GET endpoint to get realistic sample responses.
For live data, send Authorization: Bearer CC_LIVE_xxxxx. The Run buttons below use a public sandbox key CC_LIVE_SANDBOX_… rate-limited to 5 requests / minute / IP. Paste your own CC_LIVE_ key below to use it instead.
Search & sets
Multi-source card search, autocomplete, and set browsing. Append ?demo=true for sample data.
Card detail, history, PSA, arbitrage
Bundled card detail, historical prices with trend, PSA population data, and cross-source price comparison.
Image upload & AI pre-grade
Get a signed upload URL, then pre-grade the card from the resulting image. Requires authentication.
Manage your collection
List, add, update, and remove cards in your portfolio. Track collection progress and stats. Requires authentication.
Health & docs
Operational checks and the interactive Swagger UI.
Want a live key?
The live API is in private beta. Tell us what you'd build and we'll get you a key.