PostGrid Documentation
PostGrid documentation — automate direct mail and verify addresses at scale.
PostGrid helps you transform your offline communications, bridging the gap between the physical and digital world. Automate direct mail with a robust API and verify addresses across 245+ countries.
Products
Section titled “Products” Print & Mail Automate sending letters, postcards, self-mailers, cheques, and more using a REST API, our dashboard, or our native integrations. Address Verification Autocomplete, verify, and standardize addresses to local postal standards. API Reference Every endpoint, request, and response — with examples in HTTP, TypeScript, and Python.
Getting started
Section titled “Getting started”Create an account at postgrid.com/sign-up and generate an API key in the dashboard. Test keys are a sandbox: Print & Mail test orders are never printed or mailed.
- Print & Mail: API overview or dashboard getting started
- Address Verification: Getting Started
For agents
Section titled “For agents”Start with llms.txt. Fetch Markdown with
Accept: text/markdown or the /path/index.md sibling. The OpenAPI spec is at
api/openapi.yaml.