generated: '2026-09-16'
method: searched
source: >-
  https://docs.itick.org/en/getting-started, /en/api-url,
  /en/rest-api/crypto/crypto-kline.md, /en/rest-api/basics/symbol-list.md,
  /en/error-code.md
summary: >-
  iTick is a read-only market-data API: every documented REST operation is an
  HTTP GET returning quotes, order-book depth, ticks or K-lines. There is no
  create/update/delete surface, so the write-oriented agent-safety dimensions
  (idempotency keys, dry-run, reversibility) do not apply.
auth:
  style: api-key
  header: token
  detail: See authentication/itick-authentication.yml.
base_urls:
  production: https://api.itick.org/{product}
  free_trial: https://api-free.itick.org/{product}
  websocket: wss://api.itick.org/{product}
  products: [crypto, forex, indices, stock, future, fund]
pagination:
  style: limit-count
  params:
    limit: Number of rows to return (K-line/tick queries).
    et: Optional end timestamp in milliseconds (defaults to now).
  detail: >-
    Historical queries page by `limit` plus an optional `et` (end) millisecond
    timestamp; there is no cursor or offset token documented.
error_envelope:
  shape: '{ "code": <int>, "msg": <string|null>, "data": <payload> }'
  success_code: 0
  detail: >-
    Not RFC 9457. Faults use an E-series code catalog (see
    errors/itick-problem-types.yml).
batching:
  detail: >-
    Batch variants exist for every read (`/{product}/ticks`, `/quotes`,
    `/depths`, `/klines`); `codes` is a comma-separated symbol list.
versioning:
  detail: >-
    No global version prefix; most paths are unversioned. One path is explicitly
    v2 (/symbol/v2/holidays). See lifecycle/itick-lifecycle.yml.
rate_limit_signaling:
  detail: >-
    Limits are enforced per-plan by request-per-minute and WebSocket subscription
    caps. No X-RateLimit-*/RateLimit-* response headers are documented. See
    rate-limits/itick-rate-limits.yml.
idempotency:
  coverage: na
  detail: >-
    Read-only API - all operations are HTTP GET (naturally idempotent) and there
    is no mutating surface, so an Idempotency-Key mechanism is not applicable.
reversibility:
  status: na
  detail: >-
    No write operations exist, so there is nothing to reverse (no cancel / refund
    / void / undo surface). Not applicable.
dry_run:
  status: na
  detail: Read-only API; no state-changing action to rehearse.