generated: '2026-07-22'
method: searched
source: https://docs.tradier.com/docs (authentication, response-format, rate-limiting, error-responses) + openapi/tradier-openapi.yml
authentication:
  style: Bearer token in the Authorization header
  token_types: [personal API token (individuals), OAuth 2.0 authorization-code access token (partners)]
  docs: https://docs.tradier.com/docs/authentication
  artifact: authentication/tradier-authentication.yml
idempotency:
  supported: false
  notes: No idempotency-key header or replay-protection mechanism is documented for order placement.
pagination:
  style: page-based (limited surface)
  params: [page, limit]
  notes: >-
    page/limit apply to account history and gain/loss endpoints; most collection
    endpoints (orders, positions, watchlists) return complete result sets.
content_negotiation:
  default: application/xml
  recommended: application/json (via Accept header)
  notes: >-
    XML is the default for legacy financial-industry reasons and will be removed in
    future versions. JSON is produced by XML-to-JSON translation, with a known
    issue where single-element lists may present as an object instead of an array.
  compression: gzip via Accept-Encoding
  docs: https://docs.tradier.com/docs/response-format
request_bodies:
  format: application/x-www-form-urlencoded for POST/PUT (order placement, watchlists, sessions)
error_envelope:
  shape: HTTP status + message body; order rejections surface as HTTP 200 with an order-level errors property
  artifacts: [errors/tradier-problem-types.yml, errors/tradier-error-codes.yml]
rate_limits:
  interval: 1 minute, per access token
  headers: [X-Ratelimit-Allowed, X-Ratelimit-Used, X-Ratelimit-Available, X-Ratelimit-Expiry]
  docs: https://docs.tradier.com/docs/rate-limiting
  artifact: rate-limits/tradier-rate-limits.yml
versioning:
  scheme: uri-path (/v1)
  artifact: lifecycle/tradier-lifecycle.yml
streaming:
  session_bootstrap: >-
    Streaming requires a short-lived sessionid created via REST
    (createMarketStreamingSession / createAccountStreamingSession), valid for up
    to 5 minutes prior to connecting; one streaming session per user.
  artifact: asyncapi/tradier-asyncapi.yml