Overview
EasyPost is the go-to shipping API for developers who need to integrate multi-carrier shipping directly into their applications. Unlike dashboard-based platforms, EasyPost is built API-first, providing clean RESTful endpoints for label creation, rate shopping, address verification, and package tracking.
Founded in 2012 and headquartered in San Francisco, EasyPost powers shipping for thousands of companies including Shopify, eBay, and many high-volume e-commerce brands. The platform processes over 1 billion shipments annually and connects to 100+ carriers worldwide.
Key Features
RESTful Shipping API
EasyPost's core product is its shipping API. With a few API calls, you can create shipments, buy labels, and track packages across any supported carrier. The API is well-documented with SDKs for Python, Ruby, Node.js, PHP, Java, Go, and C#.
Smart Rate Shopping
The SmartRate API goes beyond simple rate comparison by providing estimated delivery dates based on historical carrier performance data. This helps businesses choose carriers based on both price and reliability, not just the quoted rate.
Address Verification
EasyPost's address verification API validates addresses against USPS and international postal databases. It corrects common errors, standardizes formatting, and flags undeliverable addresses before they become costly failed deliveries.
Tracking & Webhooks
Rather than polling for updates, EasyPost pushes tracking events to your application via webhooks. This enables real-time tracking pages and proactive customer notifications without constant API polling.
Who Is EasyPost Best For?
EasyPost is ideal for:
- Development teams building custom shipping workflows into their platform
- High-volume shippers (200+ orders/month) who need API-level control
- SaaS companies building shipping features into their products
- Businesses needing address verification at scale
The Bottom Line
EasyPost is the best shipping API for teams that have development resources and need maximum flexibility. Its pay-per-label pricing means you only pay for what you use, and the 100+ carrier network ensures global coverage. However, if you need a point-and-click dashboard for manual shipping, look elsewhere — EasyPost is built for developers, by developers.