Canada Post Address Verification API: Overview and Integration
- Derald Skogen
- Apr 10
- 1 min read
The Canada Post Address Verification API helps validate and correct Canadian addresses before they enter your system or mailing process.

Why Use It:
Improve delivery success
Eliminate errors during customer input
Validate postal codes and formats
How It Works:
Register for a Canada Post Developer Program account
Get API Keys and sandbox credentials
Integrate the API into your application or website
Send a request with the address data
Receive corrected, formatted, and validated address details
Key Features:
Autocomplete address suggestions
Validates against the Canada Post address database
Supports RESTful architecture and JSON format
Use Cases:
Ecommerce checkouts
CRM systems
Shipping software
Note: While there may be demo access for developers, full access typically requires a commercial agreement or volume-based pricing.
Whether you’re a Canadian business or a global seller shipping to Canada, this API helps ensure mail gets where it’s supposed to go—on time, every time.
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