Grant provides a billing API for managing customers and subscriptions and generating invoices.

API

What your agent can do

  • Returns a paginated list of customers for the authenticated company.

    Via API.

Tasks depend on the interface and permissions.

Connection methods

Choose a route that fits your agent.

API connection
API path
https://api.trygrant.com/v1/customers

Authentication
All Grant API endpoints (except the health check) require authentication via an API key sent as a Bearer token in the `Authorization` header.

Documentation & experience

  • 1 of 1 connection paths checked
  • Latest documentation check 11 Oct 2026
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