generated: '2026-07-19'
method: searched
source: https://docs.hashflow.com/hashflow/taker/getting-started-api-v3
api: Hashflow Taker API v3
base_url: https://api.hashflow.com/taker/v3
authentication:
  style: api-key-header
  header: Authorization
  ref: authentication/hashflow-authentication.yml
source_identifier:
  description: >-
    Every request carries a `source` string identifying the integrator.
    Aggregators/multi-wallet integrators pass their assigned source; single-wallet
    integrators use `source: "api"` and add a `wallet` parameter.
  required: true
idempotency:
  supported: false
  notes: >-
    No idempotency-key header is documented. Quotes are naturally single-use:
    each RFQ returns a signed quote with a `nonce` and `quoteExpiry`, and the
    on-chain HashflowRouter rejects reused nonces, providing replay protection at
    settlement rather than API idempotency.
pagination:
  style: none
  notes: >-
    Price-level and RFQ responses return full arrays keyed by market maker; there
    is no cursor/offset pagination.
versioning:
  scheme: uri-path
  current: v3
  example: https://api.hashflow.com/taker/v3
error_envelope:
  style: status-field
  fields:
    status: '"success" | "fail"'
    error: Human-readable error string, present when status is "fail".
  ref: errors/hashflow-error-codes.yml
rate_limiting:
  signal: restrictions-endpoint
  notes: >-
    Trader-level rate limiting is surfaced via GET /restrictions, which returns
    `isTraderRestricted` and a `restrictions[]` list (reason: rate_limit) with an
    optional `expiryTimestampMs`. No standard rate-limit response headers are documented.
chains:
  identification: >-
    Requests specify chain by `baseChainType`/`quoteChainType` ("evm" | "solana")
    and numeric `baseChainId`/`quoteChainId`; native tokens use the zero address
    0x0000000000000000000000000000000000000000.