generated: '2026-07-19' method: searched source: openapi/hifi-openapi-original.json docs: https://docs.hifi.com/api/authentication summary: types: - http api_key_in: - header scheme: All requests are authenticated with a bearer API key sent in the Authorization header over HTTPS/TLS. Keys are created in the Hifi Dashboard under Developer > API Keys and shown only once at creation. notes: - Header format is "Authorization: Bearer [example key]". - Separate keys per environment; sandbox keys must never be used in production and vice versa. There is no documented test/live key prefix. - Webhook callbacks are themselves signed as an RS256 JWT in the Authorization header, verified with the per-endpoint webhook public key. - Recommended rotation is annual, or immediately on suspected compromise. environments: - name: sandbox base_url: https://sandbox.hifibridge.com - name: production base_url: https://production.hifibridge.com schemes: - name: bearerAuth type: http scheme: bearer bearerFormat: JWT in: header header_name: Authorization sources: - openapi/hifi-openapi-original.json