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FIXsession: admin35=*
The baseline specification for Unified FIX v2 is FIX 4.4. A standard header must be present at the start of every message in both directions, and a standard trailer closes every message. SenderCompID and TargetCompID are communicated by Kraken during onboarding.

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Standard Header

Present at the start of every message in both directions. Nine header fields are used, with the same tags, types and required flags as Unified FIX.
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string
required
FIX protocol version. Always FIX.4.4.
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Length
required
Number of characters between this field and the checksum, counting the delimiter before the checksum.Format: Character count from after this field up to and including the delimiter before tag 10.
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string
required
Message type of this message.Possible values:
  • 0 : Heartbeat.
  • 1 : TestRequest.
  • 2 : ResendRequest.
  • 3 : Reject.
  • 4 : SequenceReset.
  • 5 : Logout.
  • 8 : ExecutionReport.
  • 9 : OrderCancelReject.
  • A : Logon.
  • D : NewOrderSingle.
  • F : OrderCancelRequest.
  • G : OrderCancelReplaceRequest.
  • H : OrderStatusRequest.
  • j : BusinessMessageReject.
  • q : OrderMassCancelRequest.
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string
required
Identifier of the party sending the message. Provided by Kraken during onboarding.Format: Assigned by Kraken at onboarding.
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string
required
Identifier of the party receiving the message. KRAKEN-PERPS-TRD for US Perps order entry sessions.Format: KRAKEN-PERPS-TRD
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SeqNum
required
Sequence number of this message on the session.
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boolean
Whether the message may be a retransmission of one already sent with this sequence number.Possible values:
  • Y : Possible duplicate — this sequence number may have been sent before.
  • N : Not a duplicate.
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UTCTimestamp
required
Time the sender transmitted the message, in UTC, formatted YYYYMMDD-HH:MM:SS.uuu.Format: UTC timestamp, YYYYMMDD-HH:MM:SS.uuu
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UTCTimestamp
Original sending time of a retransmitted message; set to SendingTime when no original is available.Format: UTC timestamp, YYYYMMDD-HH:MM:SS.uuuRequired: Conditional

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Standard Trailer

Closes every message. CheckSum is always the final field.
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string
required
Modulo-256 checksum of the message. Always the last field.Format: Three digits, modulo-256 sum of every preceding byte.