generated: '2026-07-21' method: searched source: https://docs.ucloud.cn/api/summary/signature + https://docs.ucloud.cn/api/summary/public notes: >- UCloud has no separate test-mode/live-mode key split — API calls run against the real account. What it does publish: (1) the UAPI browser, an interactive console API explorer that constructs requests, executes them, and generates SDK samples; and (2) a documented debug credential pair with a known-good signature test vector so developers can verify their signing code before switching to real keys. Values below are verbatim from the published docs. console: name: UAPI browser url: https://console.ucloud.cn/uapi/ucloudapi description: Interactive API explorer in the console; builds and fires requests and auto-generates SDK sample code. api_key_console: https://console.ucloud.cn/uapi/apikey signature_test_vector: description: >- Published example keys for validating a signature implementation. Signing the documented example request with these keys must produce the documented signature; only then should real account keys be substituted. public_key: ucloudsomeone@example.com1296235120854146120 private_key: 46f09bb9fab4f12dfc160dae12273d5332b5debe example_request: Action: DescribeUHostInstance Region: cn-bj2 Limit: 10 expected_signature: cba5cf5ec4d4233d206b1b54951e3787350a642f modes: test_live_split: false notes: No sandbox environment, test key prefixes, test clocks, or fixture tooling are published for the Open API.