generated: '2026-07-18'
method: derived
source: openapi/dapper-labs-flow-access-openapi-original.yml + developers.flow.com
authentication:
  style: none
  note: >-
    The Flow Access API is a public, unauthenticated blockchain node API. There are
    no API keys, OAuth, or bearer tokens. Access control is at the network layer
    (choose a public access node or run your own).
idempotency:
  supported: false
  note: >-
    No Idempotency-Key header. Transactions are naturally idempotent by their content
    hash / transaction ID (resubmitting the same signed transaction references the
    same on-chain transaction), but there is no HTTP idempotency-key contract.
pagination:
  style: height-range + cursor links
  params: [start_height, end_height, start_id, end_id]
  response_fields: [_links, _expandable]
  note: Block/event/transaction collections are queried by block-height range; _links carries navigation.
expansion:
  supported: true
  params: [expand, select]
  note: Sub-resources can be expanded with ?expand= and fields narrowed with ?select=.
content_negotiation:
  note: 'Docs support Accept: text/markdown / text/plain for machine-readable docs.'
error_envelope:
  media_type: application/json
  shape: { code: integer, message: string }
  cross_ref: errors/dapper-labs-problem-types.yml
rate_limiting:
  note: Public access nodes may rate-limit by IP; no standard rate-limit headers documented. Run a dedicated/self-hosted access node for higher throughput.
cross_links:
  errors: errors/dapper-labs-problem-types.yml
  lifecycle: lifecycle/dapper-labs-lifecycle.yml
  data_model: data-model/dapper-labs-data-model.yml