generated: '2026-07-22'
method: derived
source: openapi/dxfeed-fundamentals-openapi.json + asyncapi/dxfeed-dxlink-asyncapi.yml + kb.dxfeed.com
  + dxfeed.com/trust-center/
standards:
- id: fix
  conforms: true
  evidence: Industry-standard FIX protocol access to market data documented at kb.dxfeed.com/en/market-data-api/data-access-solutions/fix.html
- id: asyncapi-2.4
  conforms: true
  evidence: dxLink WebSocket protocol published as an AsyncAPI 2.4 document (asyncapi/dxfeed-dxlink-asyncapi.yml,
    harvested from dxFeed/dxLink)
- id: openapi-3.1
  conforms: true
  evidence: Fundamentals API publishes OpenAPI 3.1.0 at tools.dxfeed.com/fs/v3/api-docs
- id: server-sent-events
  conforms: true
  evidence: REST webservice /eventSource resource streams SSE
- id: websocket-rfc6455
  conforms: true
  evidence: dxLink runs over standard WebSocket
- id: soc2
  conforms: true
  evidence: SOC 2 attested on https://dxfeed.com/trust-center/
- id: oauth2
  conforms: false
  evidence: No OAuth surface; login/password credentials + entitlements
- id: oidc
  conforms: false
- id: rfc9457-problem-details
  conforms: false
  evidence: Errors use a custom ApiError envelope, not application/problem+json
- id: json-api
  conforms: false
- id: idempotency-key
  conforms: false
  evidence: No idempotency-key contract documented