generated: '2026-08-09'
method: searched
source:
  - https://infoway.readme.io/reference/api-limitation.md
  - https://docs.infoway.io/getting-started/api-limitation/http.md
  - https://docs.infoway.io/getting-started/api-limitation/websocket.md
scope: per-api-key
signalling:
  response_headers: none-documented
  retry_after: false
  rate_limit_headers: false
  note: >-
    Infoway documents no X-RateLimit-* or Retry-After headers. The only runtime signal a client gets is the
    envelope `ret: 429` (HTTP) / code 429 or 501 (WebSocket). Budget tracking is the caller's problem.
plan_tiers:
  - plan: Free
    plan_zh: 免费
    http: {per_second: 2, per_minute: 120, per_day: 10000, applies_to: all endpoints}
    websocket: {connections: 1, symbols_per_connection: 10, symbols_total: 10}
  - plan: Basic
    plan_zh: 基础
    http: {per_second: 5, per_minute: 300, per_day: 30000, applies_to: all endpoints}
    websocket: {connections: 2, symbols_per_connection: 100, symbols_total: 200}
  - plan: Advanced
    plan_zh: 高级
    http: {per_second: 10, per_minute: 600, per_day: 50000, applies_to: all endpoints}
    websocket: {connections: 4, symbols_per_connection: 200, symbols_total: 800}
  - plan: Professional
    plan_zh: 专业
    http: {per_second: 20, per_minute: 1200, per_day: 100000, applies_to: all endpoints}
    websocket: {connections: 10, symbols_per_connection: 500, symbols_total: 5000}
global_limits:
  - limit: websocket subscription frames
    limit_count: 60
    window: 1 minute
    note: >-
      All WebSocket subscription requests combined — K-line subscribe, quote subscribe, heartbeats — share
      one 60/minute budget. Exceeding it disconnects the socket.
  - limit: symbols per trade request
    limit_count: 100
    window: per request
    note: Exceeding returns ret 505.
ip_limits:
  business_endpoints: none — limits are applied against the API key's plan, not the source IP
  page_endpoints: >-
    Infoway's own website widgets (live data display) are IP rate-limited; this does not apply to keyed API
    traffic.
x-evidence:
  fetched: '2026-08-09'
  urls:
    - {url: 'https://infoway.readme.io/reference/api-limitation.md', http_status: 200}
    - {url: 'https://docs.infoway.io/getting-started/api-limitation/websocket.md', http_status: 200}
  note: >-
    Tier NAMES and their numeric ceilings are published; tier PRICES are rendered client-side on
    https://infoway.io/#pricing and were not machine-readable, so no plans/ artifact was written.