> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.trygrant.com/api-reference/grant-events-api/customers/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.trygrant.com/_mcp/server. # Customers > API documentation for Grant — billing infrastructure for usage-based pricing ## API Docs - [List customers](https://docs.trygrant.com/api-reference/grant-events-api/customers/list.md): Customers - [Create a customer](https://docs.trygrant.com/api-reference/grant-events-api/customers/create.md): Customers - [Search customers](https://docs.trygrant.com/api-reference/grant-events-api/customers/search.md): Customers - [Retrieve a customer](https://docs.trygrant.com/api-reference/grant-events-api/customers/get.md): Customers - [Update a customer](https://docs.trygrant.com/api-reference/grant-events-api/customers/update.md): Customers - [Delete a customer](https://docs.trygrant.com/api-reference/grant-events-api/customers/delete.md): Customers - [Create a customer portal link](https://docs.trygrant.com/api-reference/grant-events-api/customers/create-portal-link.md): Customers - [List customer balances](https://docs.trygrant.com/api-reference/grant-events-api/customers/list-balances.md): Customers ## OpenAPI Specification - [OpenAPI JSON](https://docs.trygrant.com/openapi.json): raw OpenAPI 3.1 specification for this API, JSON format - [OpenAPI YAML](https://docs.trygrant.com/openapi.yaml): raw OpenAPI 3.1 specification for this API, YAML format