The credit card data API
for US & Canada
Rewards, fees, benefits, and application criteria for card products, sourced from issuer websites. Data about the cards themselves, not a payments API.
Re-checked against issuer sites every Friday · last change Oct 17
Try it without a key
GET /v1/cards/:slug, live, with the fields a free key returns. A few sample cards here; a free key covers the whole catalogue.
Everything you need
Comprehensive, structured credit card data served through a simple REST API.
Every Card Detail
Annual fees, welcome offers, purchase APRs, foreign transaction fees and network on nearly every card, plus 50+ more fields such as intro APR, balance transfer terms and authorized user policies, filled in where the issuer publishes them.
Reward Rates by Category
Dining, groceries, gas, travel, and 6 more categories. Multiplier, cashback, and points-per-dollar rates with caps. Rotating category schedules and spending-based bonus tiers.
Benefits & Perks
Statement credits, hotel elite status, TSA PreCheck, airline perks, lounge access, travel insurance, purchase protection. Structured and comparable across cards.
Transfer Partners
Know where points transfer. Amex MR to Aeroplan 1:1, Chase UR to United 1:1. Transfer ratios for Amex Membership Rewards, Chase Ultimate Rewards, Citi ThankYou and Capital One miles.
Application Rules
Issuer-specific application restrictions and velocity limits. Chase 5/24, Amex once-per-lifetime, Citi 8/65, and more.
Card Change History
Track fee increases, bonus changes, rate adjustments over time. Point/mile valuations for comparing effective earn rates across currencies.
Integrate in minutes
A clean REST API with TypeScript and Python SDKs, an OpenAPI spec and a Postman collection.
Built for builders
From comparison sites to fintech apps, CardAPI powers the credit card data layer.
Comparison Sites
Power your card comparison tool with card data sourced from issuer websites.
Fintech Apps
Build smart wallet apps, reward optimizers, or churning tools. We handle the data, you build the experience.
Content Creators
Accurate card data for blogs, YouTube reviews, and social content. Never publish outdated information.
Simple, transparent pricing
Start free. Scale when you need to.
- 100 calls/day
- 3,000 calls/month
- Basic card info
- Top 3 reward rates
- 500 calls/day
- 15,000 calls/month
- Full card details
- All reward rates
- Benefits, perks & statement credits
- Application criteria
7-day free trial, once per customer, card required. Then $29/mo until you cancel; cancel any time in the developer portal or by emailing support@cardapi.dev.
- 2,000 calls/day
- 50,000 calls/month
- Everything in Starter
- Card change history
- Offer changes
- Transfer partners & spend bonuses
- 20,000 calls/day
- 500,000 calls/month
- Everything in Pro
- Card art images where available
- Webhooks for data changes
- GraphQL access
- Priority support
Get your API key in 30 seconds
Start building with credit card data today.
No credit card required. 100 free calls per day.
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