PostGrid offers a fully documented REST API that lets businesses automate the creation and mailing of personalized letters, checks, and postcards, as well as perform real‑time address verification, autocomplete, and bulk standardization to USPS, Canada Post, and international standards. The platform integrates with existing CRMs and over 1,600 apps via Zapier and native connectors, providing developers with quick setup, activity logs, and analytics to streamline offline communications and reduce undeliverable mail.
Funding
Funding not disclosed
Founders
Product
Problem
Businesses that need to send physical mail such as letters, checks, or postcards often rely on manual processes, separate mailing services, and fragmented address data, leading to high labor costs, delayed deliveries, and low deliverability due to inaccurate addresses.
Solution
PostGrid provides a unified, fully documented REST API that automates the creation and dispatch of personalized print‑mail items—including letters, checks, and postcards—directly from a company’s existing software stack. The same platform offers real‑time address verification, autocomplete, and standardization to USPS, Canada Post, and international postal standards, reducing undeliverable mail. Developers can integrate the API in minutes using test keys, while built‑in analytics and activity logs give visibility into campaign performance. The service also supports bulk operations, webhook‑based triggers, and over 1,600 third‑party integrations via Zapier and native connectors, enabling end‑to‑end automation of offline communications.
Target Audience
Primary users are software developers and engineering teams building transactional or marketing workflows, as well as marketing, finance, compliance, and customer‑success departments in enterprises that require reliable, automated offline mail and address validation.
Features
- RESTful Print & Mail API for on‑demand generation of letters, checks, and postcards with single‑call personalization
- Real‑time address verification, parsing, autocomplete, and bulk validation (up to 200 k records) certified to CASS and SERP standards
- Test and live API keys plus detailed developer documentation, SDKs, and GitHub examples for rapid integration
- Zapier, Salesforce, HubSpot, Marketo, QuickBooks and 1,600+ app integrations for workflow automation
- Activity logs, metadata attachment, and downloadable renderings for auditability and campaign tracking
- Scalable infrastructure hosted on AWS with compliance certifications (HIPAA, GDPR, SOC‑2) and secure data handling