Interactive API Documentation

Real-time mortgage and auto loan rates from 4,000+ US lenders. Test endpoints directly in your browser.

4,000+

Lenders

<500ms

Response

Daily

Updates

Quick Start

Welcome to RateAPI - your source for real-time mortgage and auto loan rates from credit unions nationwide. This page provides interactive API documentation powered by Swagger UI, allowing you to explore all endpoints, test API calls directly in your browser, and view detailed response schemas.

terminal

# Get your API key (no signup required)

$ curl -X POST https://api.rateapi.dev/keys

# Get mortgage rate recommendations

$ curl -X POST "https://api.rateapi.dev/v1/decisions" \

-H "Authorization: Bearer YOUR_API_KEY" \

-H "Content-Type: application/json" \

-d '{"state": "CA", "product_type": "mortgage", "intent": "purchase", "amount": 500000}'

# Get auto loan rate recommendations

$ curl -X POST "https://api.rateapi.dev/v1/decisions" \

-H "Authorization: Bearer YOUR_API_KEY" \

-H "Content-Type: application/json" \

-d '{"state": "TX", "product_type": "auto_loan", "intent": "purchase", "amount": 35000, "term_months": 60, "details": {"vehicle_condition": "new"}}'

🏠 Mortgage Rates

30-year, 15-year fixed, ARM rates with property type, occupancy, and LTV filters.

🚗 Auto Loan Rates

New and used vehicle financing with term options from 36 to 84 months.

🎯 Smart Decisions

AI-powered recommendations compare rates across lenders with confidence scores.

📊 Real-Time Data

Daily updates from 4,000+ credit unions with sub-500ms global response times.

Auto Loan Parameters

Vehicle Condition new, used, certified, any

Term Lengths 36, 48, 60, 72, 84 months

Vehicle Types car, truck, suv, van, motorcycle

Vehicle Year Model year (e.g., 2024)

Base URL: https://api.rateapi.dev Website: rateapi.dev OpenAPI Spec: /openapi.json