generated: '2026-08-02'
method: searched
source: https://docs.clearstreet.io/studio/docs/sandbox
environments:
- name: Studio Demo
  api: Clear Street Studio API
  base_url: https://demo-api.clearstreet.io/studio/v2
  websocket_url: wss://demo-api.clearstreet.io/studio/v2/ws
  documented_at: https://docs.clearstreet.io/studio/docs/sandbox
  credentials: >
    Separate demo credentials are issued through Studio; the same OAuth2 client-credentials
    flow against https://auth.clearstreet.io/oauth/token applies.
  characteristics:
  - Uses mocked data rather than live market data.
  - Orders are automatically filled based on simulated rules rather than real market execution.
  - Replays recorded market data, which drives simplified but realistic risk, P&L and buying-power
    calculations.
  reset:
    cadence: daily
    note: 'The demo environment is reset daily, and information from the previous day is not saved.'
- name: Studio Sandbox (spec server)
  api: Clear Street Studio API
  base_url: https://sandbox-api.clearstreet.io/studio/v2
  source: openapi/clear-street-studio-openapi.yml servers[]
  note: >
    Declared as the "Sandbox environment" server in the Studio OpenAPI. The Studio docs describe
    the demo host above; both are recorded verbatim rather than reconciled.
- name: Legacy API sandbox
  api: Clear Street API (Trades and Uploads)
  base_url: https://api.sandbox.clearstreet.io/v1
  source: openapi/clear-street-legacy-api-swagger.yml servers[]
- name: Trading API development
  api: Clear Street Trading API
  base_url: https://api-dev.clearstreet.com
  source: openapi/clear-street-trading-api-openapi.yml servers[]
  note: >
    Declared as "Clear Street Development API" in the spec. No public documentation describes
    how to obtain access, so this is recorded as a declared server, not a published sandbox.
test_data:
  note: >
    Published verbatim from the Studio sandbox documentation. These are the symbols the demo
    environment carries market data for — no test values were invented.
  etb_symbols:
    description: Easy-to-borrow symbols with market data (15)
    values: [AAPL, NVDA, MSFT, AMZN, GOOG, META, TSLA, BRK.B, TSM, AVGO, WMT, LLY, JPM, V, UNH]
  non_etb_symbols:
    description: Non-ETB symbols with market data (5) — require locates
    values: [XOM, ORCL, MA, NVO, COST]
  unlisted_symbol_behaviour:
    reference_price: '0.01'
    treatment: non-ETB, requires locate
    note: 'For symbols outside the two lists above, the reference price defaults to $0.01.'
test_vs_live:
  separation: separate hosts
  key_prefixes: none
  note: >
    Clear Street separates test from live by HOST, not by key prefix — there is no sk_test_/
    sk_live_ style discriminator. Credentials are environment-scoped.
test_clocks:
  supported: false
fixture_tooling:
  published: false
  note: >
    No trigger/fixture CLI or event-simulation tooling is documented. Order fills are simulated
    automatically by the demo environment instead.
trading_api_sandbox:
  published: false
  note: >
    The Clear Street Trading API (api.clearstreet.com) publishes no documented sandbox or paper-
    trading environment. The api-dev.clearstreet.com server appears in the spec but is not
    documented for external use.
x-evidence:
  fetched: '2026-08-02'
  sources:
  - {url: 'https://docs.clearstreet.io/studio/docs/sandbox', http_status: 200}
  - {url: 'https://docs.clearstreet.io/studio/docs/websockets', http_status: 200}
  - {file: 'openapi/clear-street-studio-openapi.yml', field: 'servers[]'}