specification: Sandbox
specificationVersion: '0.1'
provider: ClickHouse
providerId: clickhouse
generated: '2026-09-05'
method: searched
source: https://clickhouse.com/docs/getting-started/playground (read as its published markdown twin, 2026-09-05)
note: >-
  ClickHouse publishes a genuinely anonymous, no-signup sandbox: the ClickHouse Playground. Credentials
  below are the provider's own published values, quoted verbatim — none was invented. There is no
  test-vs-live key-prefix scheme, no test clock and no fixture/trigger tooling, because the sandbox is a
  real read-only ClickHouse cluster with example datasets, not a simulated environment.
sandbox:
  name: ClickHouse Playground
  console: https://sql.clickhouse.com
  signup_required: false
  credentials_published: true
  endpoints:
    - protocol: HTTPS
      url: https://play.clickhouse.com:443/
    - protocol: Native TCP
      url: play.clickhouse.com:9440
  credentials:
    user:
      - explorer
      - play
    password: '(empty)'
  limitations:
    - Queries run as a read-only user
    - DDL queries are not allowed
    - INSERT queries are not allowed
    - The service has usage quotas
  specifications:
    hosting: Google Cloud (GCE), US Central region (us-central1)
    replicas: 3
    per_replica: 256 GiB storage, 59 virtual CPUs
  examples:
    - description: HTTPS endpoint with curl
      command: curl "https://play.clickhouse.com/?user=explorer" --data-binary "SELECT 'Play ClickHouse'"
    - description: Native TCP with the ClickHouse client
      command: clickhouse client --secure --host play.clickhouse.com --user explorer
free_tier:
  cloud_trial: $300 in credits over 30 days
  ends: after 30 days or once the credits are consumed, whichever comes first
  then: converts to pay-as-you-go
  signup: https://console.clickhouse.cloud/signUp
  source: https://clickhouse.com/pricing.md
control_plane_sandbox:
  available: false
  note: >-
    The ClickHouse Cloud API (api.clickhouse.cloud) has no separate test mode, sandbox host or test-key
    prefix. Control-plane calls provision real, billable resources.