PostGrid is a physical mail automation platform providing REST APIs for sending printed letters, postcards, checks, and self-mailers at scale, along with address verification APIs covering 245+ countries.
A REST API for programmatically sending letters, postcards, checks, and self-mailers. Handles printing, postage, and delivery with support for templates, contacts, tracking, webhooks, and both test and live modes.
REST APIs for real-time address autocomplete, verification, and standardization covering US, Canada, and 245+ countries worldwide. Supports CASS-certified validation, geocoding, and bulk batch verification.