generated: '2026-07-20'
method: derived
source: openapi/overlay-openapi.yml + https://docs.overlay.market/api/aggregator-market-data
standards:
  - id: coingecko-cmc-aggregator-schema
    conforms: true
    evidence: >-
      /data/api/aggregator/contracts returns the CoinGecko/CMC aggregator field
      set (ticker_id, base/target_currency, last_price, base/target_volume, bid,
      ask, high, low, open_interest, funding_rate).
  - id: rest-json
    conforms: true
    evidence: JSON-over-HTTPS read endpoints.
  - id: oauth2
    conforms: false
    evidence: No authentication; public read API.
  - id: rfc9457-problem-details
    conforms: false
    evidence: Failures use HTTP status, not application/problem+json.
  - id: graphql
    conforms: true
    evidence: >-
      Protocol data indexed as a GraphQL subgraph (overlay-market/v1-subgraph,
      served via Goldsky).