You can find up-to-date API documentation at docs.usestable.com.
Overview
The Stable API lets you connect Stable to your own applications and workflows. You can use it to access your mail data, automate common compliance tasks, and build integrations around your Stable account.
Using Claude, ChatGPT, or another AI assistant? You can also use Stable with LLMs using the official Stable MCP.
What can I use the Stable API for?
You can use the Stable API to access data and take actions in your Stable account.
Automatically send information about incoming mail to another system
Retrieve mail information and document scans
Assign mail items to tags and teams
Automate workflows involving checks
Connect Stable with other software your team uses
White-label Stable
You can offer Stable's virtual address and compliance features to your end-users using our white-label APIs. Learn more.
Who can use the Stable API?
All active Stable customers can use the Stable API.
How do I get started?
In the Stable dashboard, navigate to Settings > API keys
Create an API key and save it safely
Use the Stable API documentation for available actions and technical setup
Important: Store your API key securely. It is only shown once and cannot be retrieved later.