generated: '2026-07-11' method: derived source: openapi/clicksend-openapi.yml summary: types: - http schemes: - name: basicAuth type: http scheme: basic description: HTTP Basic authentication using your ClickSend username and API key. The username is your ClickSend account username; the password is your API key from the ClickSend dashboard. sources: - openapi/clicksend-openapi.yml