Check connectivity to the configured Frappe/ERPNext site. Returns a pong response confirming the server is reachable, authenticated, and responsive. Use this as a health-check before making other calls to verify the connection is working.

Retrieve a single document (doctype record) by its doctype and document name. Returns all fields and values of the document. Common use cases: fetch a Sales Invoice by its number, get Customer details, load an Item record, or retrieve any saved document by its unique name.

Search or list documents of a given DocType with optional filters, field selection, pagination (default 20, max 200), and ordering. Returns a paginated list of matching documents. Use filters to narrow results by status, date range, amount, or any document field.

Create a new document of the specified DocType with the provided field values. The data object should contain field names as keys and their respective values. Frappe auto-generates document names (via naming series) for new records. Returns the created document including its system-assigned name and all field values.

Update specific fields of an existing document identified by its doctype and name. Only the fields provided in the data object are modified; all other fields remain unchanged. Returns the updated document with all current values. Use for changing status, updating contact information, modifying amounts, or adjusting any document field.

Permanently delete a document by its doctype and name. This action is irreversible — the document and all its associated data are removed from the system. Use with caution. For audit purposes, consider updating the document status to 'Cancelled' instead where applicable (e.g., for Sales Invoices, Sales Orders).

Call a whitelisted server-side Python method on the Frappe site remotely. Use this for operations not covered by the standard CRUD tools — such as getting the logged user, computing stock balances, running reports, triggering workflows, or invoking custom API methods. The target method must be decorated with @frappe.whitelist() on the server.