Get comprehensive overview of the Fortnox API including base URL, authentication requirements, rate limits, and available resource groups. Use this FIRST to understand the API before exploring specific endpoints.

List all 377 Fortnox API endpoints with method, path, summary, and resource tags. Supports filtering by HTTP method or resource group. Returns a comprehensive catalog of available endpoints.

Get complete documentation for a specific endpoint including: description, parameters (path/query), request body schema, response schema, required vs optional fields. Essential for understanding how to use an endpoint.

Get all endpoints for a specific resource (e.g., all Customer endpoints, all Invoice endpoints). Returns grouped operations (list, create, get, update, delete) for easier understanding.

Search across all endpoints by keyword. Searches in: path, summary, description, and tags. Returns ranked results. Use this when you know what you want to do but not the exact endpoint name.

List all 81 resource groups in the Fortnox API with endpoint counts. Resource groups represent different business entities (Customers, Invoices, Products, etc.). Use this to discover what resources are available.

Get detailed schema information for a specific data model referenced in the API.