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FIX Straight Through Processing

Overview

FIX Straight Through Processing (STP) is a fast and efficient way to integrate with Seed CX’s Zero Hash Settlement Service. By connecting to our FIX STP Gateway, a Platform Operator can send trade information in FIX protocol for settlement on-chain via our proprietary settlement agent, Zero Hash.

Supported Message Types

Administrative Messages

The following Administrative message types are supported under MsgType (35):

Application Messages

Once connected to our FIX STP Gateway, the TradeCaptureReport acts as the FIX artifact which contains trade details for the Zero Hash Settlement Service to consume and effectuate. The tags and fields below describe the data objects necessary to report trades on behalf of counterparties involved in the trade.

Resources

Here is a QuickFIX-style data dictionary describing Seed CX FIX Straight Through Processing messages.

Sequence Diagrams

Connectivity and Logon

The API client must establish a FIX session by sending a Logon (35=A) message. Seed CX will act as an acceptor for all FIX sessions.

Seed CX FIX Logon Message Flow

Header and Trailer

Standard Header

Tag Name Data Type Req’d Description
8 BeginString String Y Must be FIXT.1.1 for FIX 5.0 protocol version.
Must be the first field in the message.
9 BodyLength Length Y Must be the second field in the message.
35 MsgType String Y Message type.
Must be the third field in the message.
34 MsgSeqNum SeqNum Y Message sequence number.
49 SenderCompID String Y Company identifier as allocated by Seed CX.
56 TargetCompID String Y Receiver FIX session identifier.
Always SEEDCX.
50 SenderSubID String N The trading account ID which represents the unique combination of user and CTI code, produced and can be found in SeedPortal.
Conditionally required for Application messages.
The value must be appropriately assigned to the SenderCompID (49).
142 SenderLocationID String N ISO identifier of message originator's location.
1128 ApplVerID String N Indicates the protocol being used in this message.
Supported values:
9 = FIX50SP2
57 TargetSubID String N Identifies specific trading unit. Conditionally required for Application messages.
Always ZERO.
52 SendingTime UTCTimestamp Y Time of message transmission.
369 LastMsgSeqNumProcessed SeqNum N The last MsgSeqNum (34) value received and processed.
Used to detect a backlog.

Standard Trailer

Tag Name Data Type Req’d Description
10 CheckSum String Y Checksum of message and end of message delimiter.

Administrative Messages

The following are the message layouts for each FIX Market Data message supported by Seed CX:

Logon (35=A)

Tag Field Name Data Type Req’d Description
Component <StandardHeader>
98 EncryptMethod Int Y Method of encryption.
Not validated by Seed CX.
Supported values:
0 = None
108 HeartBtInt Int Y Heartbeat interval as assigned by the client.
Note: Same value used by both sides.
141 ResetSeqNumFlag Char N Indicates that both sides of the FIX session should reset sequence numbers.
Supported values:
N = No
Y = Yes, reset sequence numbers
1137 DefaultApplVerID String Y Indicates the default protocol being used in this session.
Supported values:
9 = FIX50SP2
Component <StandardTrailer>

Client to Seed CX

8=FIXT.1.1|9=84|35=A|34=1|49=42022BE443|52=20190802-19:27:55.496|56=SEEDCX|98=0|108=30|141=Y|1137=9|10=174|

The Logon (35=A) message is used by a market participant to establish a FIX session with Seed CX. The Logon (35=A) message must be the first message sent by the client requesting to initiate a FIX session. It must be received within 5 seconds from establishing the connection, otherwise the connection will be closed.

Seed CX to Client

8=FIXT.1.1|9=106|35=A|34=1|49=SEEDCX|52=20190802-19:25:18.522726112|56=42022BE443|142=US,IL|369=1|98=0|108=30|141=Y|1137=9|10=078|

A successful logon will result in a Logon (35=A) acknowledgement sent by Seed CX.

Heartbeat (35=0)

The Heartbeat (35=0) message is used by both the initiator and Seed CX during periods of inactivity. The duration of the inactive period is determined by the field HeartBtInt (108) in Logon (35=A) message.

Tag Field Name Data Type Req’d Description
Component <StandardHeader>
112 TestReqID String N Conditionally required if the heartbeat message is generated in response to a TestRequest (35=1) message.
Component <StandardTrailer>

TestRequest (35=1)

Heartbeat (35=0) and TestRequest (35=1) messages are used by Seed CX to monitor the live status of a FIX Session.

In the event of no response within the agreed upon heartbeat interval, HeartBtInt (108), in Logon (35=A) message, a TestRequest (35=1) message will be sent. The client must respond immediately to the TestRequest (35=1) message.

If Seed CX does not receive a response to the TestRequest (35=1) message within the heartbeat interval, it will terminate the FIX session to the counterparty.

Tag Field Name Data Type Req’d Description
Component <StandardHeader>
112 TestReqID String Y TestRequest (35=1) identifier.
Component <StandardTrailer>

ResendRequest (35=2)

ResendRequest (35=2) message is used as per FIX specification.

Tag Field Name Data Type Req’d Description
Component <StandardHeader>
7 BeginSeqNo SeqNum Y Message sequence number of first message in range to be resent. Valid sequence number for session.
16 EndSeqNo SeqNum Y Message sequence number of last message in range to be resent. Specify 0 for all the messages subsequent to a particular message.
Component <StandardTrailer>

Reject (35=3)

8=FIXT.1.1|9=128|35=3|34=2|49=SEEDCX|52=20190802-19:25:20.529628759|56=42022BE443|142=US,IL|369=2|45=2|58=Incorrect value for tag.|371=57|372=AE|10=207|

The Reject (35=3) message will be sent by Seed CX when a message is received but cannot be properly processed due to session-level rule violation.

Tag Field Name Data Type Req’d Description
Component <StandardHeader>
45 RefSeqNum SeqNum Y MsgSeqNum (34) of the rejected message.
371 RefTagID Int N The tag number of the FIX field being referenced.
372 RefMsgType String N The MsgType (35) of the FIX message being referenced.
373 SessionRejectReason Int N Code to identify reason for a session-level Reject (35=3) message.
Supported values:
1 = Required tag missing
5 = Value is incorrect (out of range) for this tag
6 = Type is incorrect for this tag
9 = CompID problem
10 = Sending time inaccuracy
11 = Invalid message type
99 = Other reason
58 Text String N Provides the reason the message was rejected.
Component <StandardTrailer>

SequenceReset (35=4)

SequenceReset (35=4) message can be used for both Gap Fill or to reset sequence numbers.

Tag Field Name Data Type Req’d Description
Component <StandardHeader>
36 NewSeqNo SeqNum Y New sequence number. The number cannot be lower than the expected sequence number of either side of the connection.
123 GapFillFlag Boolean N Indicates the sequence reset message is replacing messages which will not be resent.
Supported values:
Y = Gap Fill message, MsgSeqNum (34) is valid
N = Sequence Reset, ignore MsgSeqNum (34)
Component <StandardTrailer>

Logout (35=5)

Logout (35=5) message initiates or confirms the termination of a FIX session.

Tag Field Name Data Type Req’d Description
Component <StandardHeader>
58 Text String N Reason for logout.
789 NextExpectedMsgSeqNum SeqNum Y Next expected MsgSeqNum (34) value to be received.
Component <StandardTrailer>

Application Messages

TradeCaptureReport (35=AE)

8=FIXT.1.1|9=621|35=AE|34=2|49=42022BE443|50=QGLUM5|52=20190802-16:41:41.141|56=SEEDCX|57=ZERO|142=US,IL|1128=9|31=9955.28|55=BTC/USD|58=Great trade!|60=20190802-16:41:41|167=SP|487=0|552=2|54=1|1154=BTC|453=1|448=LXAVL8|447=C|452=3|119=0.1|37=order-id-1-KQXuyrA7iw7aJf61Qj6aEC|11=cl-ord-id-1-HhJgVdPKdx98i2nbQCTPwJ|1427=side-exec-id-1-4JuK1QrzJREFR1Nw1UXrd3|54=2|1154=USD|453=1|448=JO514F|447=C|452=3|119=995.528|37=order-id-2-D92cpLPW2c4AkYux7HJE1Q|11=cl-ord-id-2-JeR2S5iXuQZ5SLiTL4dy19|1427=side-exec-id-2-LzbA8eXAszcXEbKcpCCuQe|828=0|856=0|1041=TX7uEfeNC9JMUzHoPeyhMf|1116=2|1117=QGLUM5|1118=C|1119=73|1117=ZERO|1118=G|1119=73|1193=P|10=145|
              BeginString    8  =  FIXT.1.1
               BodyLength    9  =  621
                  MsgType   35  =  AE (TradeCaptureReport)
                MsgSeqNum   34  =  2
             SenderCompID   49  =  42022BE443
              SenderSubID   50  =  QGLUM5
              SendingTime   52  =  20190802-16:41:41.141
             TargetCompID   56  =  SEEDCX
              TargetSubID   57  =  ZERO
         SenderLocationID  142  =  US,IL
                ApplVerID 1128  =  9 (FIX50SP2)
                   LastPx   31  =  9955.28
                   Symbol   55  =  BTC/USD
                     Text   58  =  Great trade!
             TransactTime   60  =  20190802-16:41:41
             SecurityType  167  =  SP
     TradeReportTransType  487  =  0 (NEW)
                  NoSides  552  =  2 (BOTH_SIDES)
                     Side   54  =  1 (BUY)
             SideCurrency 1154  =  BTC
               NoPartyIDs  453  =  1
                  PartyID  448  =  LXAVL8
            PartyIDSource  447  =  C (GENERALLY_ACCEPTED_MARKET_PARTICIPANT_IDENTIFIER)
                PartyRole  452  =  3 (CLIENT_ID)
             SettlCurrAmt  119  =  0.1
                  OrderID   37  =  order-id-1-KQXuyrA7iw7aJf61Qj6aEC
                  ClOrdID   11  =  cl-ord-id-1-HhJgVdPKdx98i2nbQCTPwJ
               SideExecID 1427  =  side-exec-id-1-4JuK1QrzJREFR1Nw1UXrd3
                     Side   54  =  2 (SELL)
             SideCurrency 1154  =  USD
               NoPartyIDs  453  =  1
                  PartyID  448  =  JO514F
            PartyIDSource  447  =  C (GENERALLY_ACCEPTED_MARKET_PARTICIPANT_IDENTIFIER)
                PartyRole  452  =  3 (CLIENT_ID)
             SettlCurrAmt  119  =  995.528
                  OrderID   37  =  order-id-2-D92cpLPW2c4AkYux7HJE1Q
                  ClOrdID   11  =  cl-ord-id-2-JeR2S5iXuQZ5SLiTL4dy19
               SideExecID 1427  =  side-exec-id-2-LzbA8eXAszcXEbKcpCCuQe
                  TrdType  828  =  0 (REGULAR_TRADE)
          TradeReportType  856  =  0 (SUBMIT)
              FirmTradeID 1041  =  TX7uEfeNC9JMUzHoPeyhMf
           NoRootPartyIDs 1116  =  2
              RootPartyID 1117  =  QGLUM5
        RootPartyIDSource 1118  =  C (GENERALLY_ACCEPTED_MARKET_PARTICIPANT_IDENTIFIER)
            RootPartyRole 1119  =  73 (EXECUTION_VENUE)
              RootPartyID 1117  =  ZERO
        RootPartyIDSource 1118  =  G (MIC)
            RootPartyRole 1119  =  73 (EXECUTION_VENUE)
              SettlMethod 1193  =  P (PHYSICAL_SETTLEMENT_REQUIRED)
                 CheckSum   10  =  145
Tag Field Name Data Type Req’d Description
Component <StandardHeader>
1041 FirmTradeID String Y Trade identifier as as allocated by Seed CX.
Component <RootParties>
856 TradeReportType Int Y This trade report's type.
Supported values:
0 = Submit
487 TradeReportTransType Int Y This trade report's transaction type.
Supported values:
0 = New
55 Symbol String Y Instrument identifier.
31 LastPx Price Y Price of this trade.
32 LastQty Qty N Quantity bought or sold on this trade.
Required if SettlCurrAmt (119) is not included in side groups.
167 SecurityType String Y Type of security being traded.
Supported values:
SP = Spot
828 TrdType String Y Type of trade.
Supported values:
0 = Regular Trade
1 = Block Trade
1193 SettlMethod Char Y Settlement method for this trade.
Supported values:
C = Cash
P = Physical
60 TransactTime UTCTimestamp Y Timestamp of event submitting the trade.
58 Text String N Free format text string.
6761 Anonymous Char N Whether identifying information for this trade should be hidden.
Defaults to 'Y' if not provided.
Component <TrdCapRptSideGrp>
Component <StandardTrailer>

TradeCaptureReportAck (35=AR)

8=FIXT.1.1|9=704|35=AR|49=SEEDCX|56=42022BE443|34=2|50=QGLUM5|142=US,IL|1128=9|52=20190802-16:41:41.347823645|369=2|1041=TX7uEfeNC9JMUzHoPeyhMf|1116=2|1117=QGLUM5|1118=C|1119=73|1117=ZERO|1118=G|1119=73|856=0|487=0|55=BTC/USD|31=9955.28|167=SP|828=0|15=USD|120=BTC|1193=P|60=20190802-16:41:41.320000000|552=2|54=1|1154=BTC|119=0.1|37=order-id-1-KQXuyrA7iw7aJf61Qj6aEC|11=cl-ord-id-1-HhJgVdPKdx98i2nbQCTPwJ|1427=side-exec-id-1-4JuK1QrzJREFR1Nw1UXrd3|453=1|448=LXAVL8|452=3|447=C|54=2|1154=USD|119=995.528|37=order-id-2-D92cpLPW2c4AkYux7HJE1Q|11=cl-ord-id-2-JeR2S5iXuQZ5SLiTL4dy19|1427=side-exec-id-2-LzbA8eXAszcXEbKcpCCuQe|453=1|448=JO514F|452=3|447=C|1003=93c2e2ef-0746-41dd-9b2c-0832d689d831|939=0|58=Great trade!|751=0|10=102|
              BeginString    8  =  FIXT.1.1
               BodyLength    9  =  704
                  MsgType   35  =  AR (TradeCaptureReportAck)
             SenderCompID   49  =  SEEDCX
             TargetCompID   56  =  42022BE443
                MsgSeqNum   34  =  2
              SenderSubID   50  =  QGLUM5
         SenderLocationID  142  =  US,IL
                ApplVerID 1128  =  9 (FIX50SP2)
              SendingTime   52  =  20190802-16:41:41.347823645
   LastMsgSeqNumProcessed  369  =  2
              FirmTradeID 1041  =  TX7uEfeNC9JMUzHoPeyhMf
           NoRootPartyIDs 1116  =  2
              RootPartyID 1117  =  QGLUM5
        RootPartyIDSource 1118  =  C (GENERALLY_ACCEPTED_MARKET_PARTICIPANT_IDENTIFIER)
            RootPartyRole 1119  =  73 (EXECUTION_VENUE)
              RootPartyID 1117  =  ZERO
        RootPartyIDSource 1118  =  G (MIC)
            RootPartyRole 1119  =  73 (EXECUTION_VENUE)
          TradeReportType  856  =  0 (SUBMIT)
     TradeReportTransType  487  =  0 (NEW)
                   Symbol   55  =  BTC/USD
                   LastPx   31  =  9955.28
             SecurityType  167  =  SP
                  TrdType  828  =  0 (REGULAR_TRADE)
                 Currency   15  =  USD
            SettlCurrency  120  =  BTC
              SettlMethod 1193  =  P (PHYSICAL_SETTLEMENT_REQUIRED)
             TransactTime   60  =  20190802-16:41:41.320000000
                  NoSides  552  =  2 (BOTH_SIDES)
                     Side   54  =  1 (BUY)
             SideCurrency 1154  =  BTC
             SettlCurrAmt  119  =  0.1
                  OrderID   37  =  order-id-1-KQXuyrA7iw7aJf61Qj6aEC
                  ClOrdID   11  =  cl-ord-id-1-HhJgVdPKdx98i2nbQCTPwJ
               SideExecID 1427  =  side-exec-id-1-4JuK1QrzJREFR1Nw1UXrd3
               NoPartyIDs  453  =  1
                  PartyID  448  =  LXAVL8
                PartyRole  452  =  3 (CLIENT_ID)
            PartyIDSource  447  =  C (GENERALLY_ACCEPTED_MARKET_PARTICIPANT_IDENTIFIER)
                     Side   54  =  2 (SELL)
             SideCurrency 1154  =  USD
             SettlCurrAmt  119  =  995.528
                  OrderID   37  =  order-id-2-D92cpLPW2c4AkYux7HJE1Q
                  ClOrdID   11  =  cl-ord-id-2-JeR2S5iXuQZ5SLiTL4dy19
               SideExecID 1427  =  side-exec-id-2-LzbA8eXAszcXEbKcpCCuQe
               NoPartyIDs  453  =  1
                  PartyID  448  =  JO514F
                PartyRole  452  =  3 (CLIENT_ID)
            PartyIDSource  447  =  C (GENERALLY_ACCEPTED_MARKET_PARTICIPANT_IDENTIFIER)
                  TradeID 1003  =  93c2e2ef-0746-41dd-9b2c-0832d689d831
             TrdRptStatus  939  =  0 (ACCEPTED)
                     Text   58  =  Great trade!
  TradeReportRejectReason  751  =  0 (SUCCESSFUL)
                 CheckSum   10  =  102
Tag Field Name Data Type Req’d Description
Component <StandardHeader>
1041 FirmTradeID String Y Trade identifier as as allocated by Seed CX.
Component <RootParties>
856 TradeReportType Int Y This trade report's type.
487 TradeReportTransType Int Y This trade report's transaction type.
55 Symbol String Y Instrument identifier.
31 LastPx Price Y Price of this trade.
32 LastQty Qty N Quantity bought or sold on this trade.
167 SecurityType String Y Type of security being traded.
Supported values:
SP = Spot
828 TrdType Int Y Type of trade.
1193 SettlMethod Char Y Settlement method for this trade.
60 TransactTime UTCTimestamp Y Timestamp of event submitting the trade.
6761 Anonymous Char N Whether identifying information for this trade should be hidden.
Defaults to 'Y' if not provided.
Component <TrdCapRptSideGrp>
1003 TradeID String N Identifier assigned to the matched trade.
939 TrdRptStatus Int Y Whether the trade was accepted or rejected.
Supported values:
0 = Accepted
1 = Rejected
58 Text String N Free format text string.
751 TradeReportRejectReason Int N Reason for trade rejection.
Supported values:
0 = Successful
1 = Invalid Party Information
2 = Unknown Instrument
3 = Unauthorized to Report Trades
4 = Invalid Trade Type
99 = Other
Component <StandardTrailer>

Message Components

The following components are used in the construction of STP messages:

RootParties

Repeating group identifying the owning and entering parties:

Tag Name Data Type Required Description
1116 NoRootPartyIDs NumInGroup Y Number of parties in the RootParty repeating group.
→ 1117 RootPartyID String Y Unique identifier for this root party.
→ 1118 RootPartyIDSource Char Y The source of this root party.
Supported values:
C = Generally accpeted market participant identifier (always required)
G = MIC (optional)
→ 1119 RootPartyRole Int Y The role of this root party.
Supported values:
73 = Execution Venue

TrdCapRptSideGrp

Repeating group describing the sides involved in the trade capture report:

Tag Name Data Type Req’d Description
552 NoSides NumInGroup Y Number of sides in this repeating group.
Required to be 2
→ 54 Side Char Y Side of this party.
Supported values:
1 = Buy
2 = Sell
→ 1154 SideCurrency Currency Y Currency used in the trade capture report.
→ 119 SettlCurrAmt Amt N The amount of the SideCurrency (119) to be paid to this side for settlement of this trade.
Required if LastQty (32) is not included.
→ 1444 SideLiquidityInd Int N Indicator of whether liquidity was provided or taken.
Supported values:
1 = AddedLiquidity
2 = RemovedLiquidity
→ 37 OrderID String N Unique identifier of the order as assigned by Seed CX.
→ 11 ClOrdID String N Client assigned unique identifier for the cancel or the cancel/replace request. Uniqueness must be guaranteed within a single trading day. Should not exceed 30 characters.
→ 1427 SideExecID String N Identifier for this side.
Component <Parties>

Parties

Repeating group denoting parties involved throughout the trade process:

Tag Name Data Type Req’d Description
453 NoPartyIDs NumInGroup Y Number of parties in this repeating group.
→ 448 PartyID String Y Unique identifier for this party.
→ 452 PartyRole Int Y The role of this party.
Supported values:
3 = Client ID
→ 447 PartyIDSource Char Y The source of this party.
Supported values:
C = Generally accepted market participant identifier