generated: '2026-08-26'
method: searched
source: https://docs.mthreads.com/tts/unary-tts/introduction
name: Moore Threads Sandbox and Trial Surface
description: >-
  Moore Threads publishes no sandbox in the conventional sense — there are no test-mode keys, no
  key prefixes distinguishing test from live, no fixture data, no test clocks and no simulator
  values on any surface. What it does publish is a hosted voice demo linked from its own API
  reference, and a genuinely free 30-day tier on the KUAE Cloud Coding Plan that runs against
  production. Nothing here is a value we invented; every item below is published by Moore Threads.
test_mode:
  supported: false
  key_prefixes: []
  note: >-
    One token type per surface, used against production. The streaming TTS API documents a literal
    placeholder access_token value of "default_token" because the field is not yet enforced — that
    is an unenforced credential, not a test mode, and it is recorded as a weakness rather than as
    a sandbox facility.
consoles:
- name: Moore Threads Voice Demo
  url: https://voice.mthreads.com/
  status: 200
  type: hosted-playground
  auth_required: unknown
  covers: TTS voice preview — the API reference links it as the way to audition the 27 published voices before integrating.
  note: A JavaScript application; the shell is all that is retrievable without a browser.
  source: https://docs.mthreads.com/tts/unary-tts/introduction
- name: KUAE Cloud Coding Plan console
  url: https://coding-plan.kuaecloud.net/apikey
  type: console
  auth_required: true
  covers: API key creation, free-trial claim (/free_apply) and code redemption (/redeem).
free_tier:
- api: KUAE Cloud Coding Plan API
  name: Free Trial
  duration: 30 days from claim
  quota: ~40 prompts per rolling 5-hour window
  environment: production
  signup: https://coding-plan.kuaecloud.net/free_apply
  note: One claim per account; not repeatable. This is a free production allowance, not a sandbox.
self_hosted_alternatives:
- name: LiteTTS on-device delivery
  url: https://docs.mthreads.com/tts/lite-tts/introduction
  note: >-
    A downloadable tarball containing a complete LiteTTS server, seven bundled lite voices and a
    standalone gRPC streaming client — the closest thing to an offline test harness Moore Threads
    publishes, and it needs no Moore Threads credential at all.
- name: Digital human Web SDK
  url: https://docs.mthreads.com/digital-human/digital-human-doc-online/sdk
  note: The mtai SDK defaults to http://localhost:32101, so local development runs entirely against a self-hosted server.
not_published:
- test card numbers or magic identifiers
- test-vs-live key prefixes
- time simulation / test clocks
- event or webhook trigger tooling
- seeded fixture accounts
checked: '2026-08-26'