Read the overview
Learn how the API is organized and what you can build with it.
Authentication
Create an API Secret and generate signed JWTs.
Send a message
Follow the first-message guide after you have an inbox ID and sender ID.
API reference
Browse endpoint details for contacts, messages, conversations, and more.
Quick start
You need a Heymarket account and an API Secret before making API calls.1
Create an API Secret
Log in to Heymarket and go to Settings > Integrations > API to generate an API Secret.
2
Generate a signed JWT
Follow the authentication guide to generate a short-lived JWT from your API Secret ID and Secret Key.
3
Authenticate requests
Pass your signed JWT as a Bearer token in every request:
4
Confirm access
Call
GET /v1/inboxes to verify authentication and find the inbox IDs available to your team.5
Send a message
Use an inbox ID and sender member ID from your account when sending a message.
6
Keep building
Browse the API Reference to discover contacts, conversations, lists, templates, and more.
Product links
Sign in
Open Heymarket to get credentials, inbox IDs, and team member IDs.
Book a demo
Talk with Heymarket about your messaging use case.
Visit the website
Learn more about Heymarket products, integrations, and pricing.
Contact sales
Ask about plans, availability, and account setup.