CME Data Sales Team

Email: CMEDataSales@cmegroup.com

Please reach out for support with the following:

• Data availability and formats

• Data pricing and licensing

• Ordering and purchasing questions

• Your current subscription

• General questions

Enterprise Application & System Entitlements (EASE) 

Toll Free: 866 716 7274 (United States only)
Phone: 312 456 1560 (United States)
Phone: 44 203 379 3802 (Europe) Phone: 65 6593.5536 (Asia)
Email: EASE@cmegroup.com

Please reach out for support with:

• Creating a CME Group Login

• Creating an API ID

• Using your online account

Global Command Center (GCC)

Phone: 800 438 8616 (US)
Phone: 44 20 7623 4747 (Europe)
Phone: 65 6532 5010 (Asia)
Email: gcc@cmegroup.com

Please reach out for support with:

• Layout guides

• Security definition files

• Data interpretation

Certification Support for Electronic Trading (CSET)

Phone: 312 930 2322 (US)

Phone: 44 20 3379 3803 (London)
Phone: 65 6593 5593 (Asia)
Email: cset@cmegroup.com

Please reach out for support with:

• New Release API Support

seek

Int

YYYYMMDDhhmmssSSS

N

Returns streaming data starting from the timestamp specified on the request up to the current time, then continues streaming real time market data.

Note: The seek request can only retrieve data streamed within the past 24 hours. The timestamp from which to initiate streaming must be in milliseconds and UTC format. Not including this argument starts streaming from the current moment.

Example: https://datamine.api.cmegroup.com/streaming/v1/btcIndexJson?seek=20161115093023000

msgSeqNum

SeqNum (9)

Integer message sequence number.

msgType

String (50)

MarketDataIncrementalRefresh

Defines message type.

senderCompId

String (7)

CME

sendingTime

UTCTimeStamp (21)

Time of message transmission (always expressed in UTC (Universal Time Coordinated, also known as "GMT").

Format: YYYYMMDDHHMMSSsss

UTC Timestamps are sent in number of nanoseconds since Unix epoch synced to a master clock to microsecond accuracy.

transactTime

UTCTimeStamp (21)

Indicates time of trade referenced in the Market Data Incremental Refresh message.

Format: YYYYMMDDHHMMSSsss

UTC Timestamps are sent in number of nanoseconds since Unix epoch synced to a master clock to microsecond accuracy.

noMdEntries

NumInGroup (5)

Number of Market Data Incremental Refresh data blocks in the Market Data Incremental Refresh message.

matchEventIndicator

String (50)

NOT_END_OF_EVENT

END_OF_EVENT

Indicates whether the message denotes the start of an event or the end of an event. For Cryptocurrency Facilities, this should be set to END_OF_EVENT if there is no need to maintain continuity between messages to infer when a particular event started and ended.

mdEntries

→symbol

String (50)

Index Name.

→rptSeq

Int (3)

Sequence number per instrument update or index.

→mdEntryType

String (50)

INDEX_VALUE
SETTLEMENT_PRICE

Indicates the type of market data entry. 
  
Note: The following fields are NOT sent for the index price or the settlement index price:

• Bid

• Ask

• Trade Volume

• Opening Price

• Closing Price

• High Price

• Low Price

→mdEntryPx

Price (20)

Price of the market data entry.

→mdEntryDate

UTC_DATE_ONLY  (8)

Date of the market data entry.

Format: YYYYMMDD (i.e. 20071215)

→mdEntryTime

UTC_TIMEONLY (12)

Timestamp of market data entry.

→mdUpdateAction

String (50)

NEW

Indicates the type of market data update action.

Note: The following tag values are NOT sent for the index price or the settlement index price

• Change

• Delete

→openCloseSettlFlag

String (50)

Daily Open / Close / Settlement entry

Entry from previous business day

Theoretical Price Value

Settlement Index value 

Identifies a market data entry. Indicates whether the price is the daily open/close/settle from the current trading session or from the previous trading session.

Note: The following tag values are NOT sent for the index price or the settlement index price:

• Daily Open / Close / Settlement entry

• Entry from previous business day

• Theoretical Price Value

→netChgPrevDay

Price (20)

Net change from the previous day's closing price vs. the last traded price.

Applies to BRR only.

→netPctChg

Int (3)

Percentage value of the net change.

Applies to BRR only.

→mdEntryCode

MultipleValueString (50)

Indicative 

Pre-Market 

Preliminary Close 

Session Close 

Close

List of conditions describing an index value.

transactTime

Y

Y

matchEventIndicator

Y

Y

symbol

Y

Y

rptSeq

Y

Y

mdEntryType

INDEX_VALUE

SETTLEMENT_PRICE

mdEntryPx

Y

Y

mdEntryDate

Y

Y

mdEntryTime

Y

Y

mdUpdateAction

NEW

NEW

openCloseSettlFlag

N/A

Y

netChgPrevDay

N

Y

netPctChg

N

Y

mdEntryCode

N/A

Y

msgSeqNum

SeqNum (9)

Integer message sequence number.

msgType

String (50)

SecurityDefinition

Defines message type.

senderCompId

String (7)

CME

sendingTime

UTCTimeStamp (21)

Time of message transmission (always expressed in UTC (Universal Time Coordinated, also known as "GMT")).

Format: YYYYMMDDHHMMSSsss

currency

Currency (3)

Identifies currency used for price.

symbol

String (50)

BRR

BRTI

Instrument/Index Name.

securityExchange

String (50)

CRYPTO FACILITIES

Used to help identify a security/index.

product

String (50)

Index

Identifies the type of product.

Always ‘Index’

noEvents

NumInGroup (1)

Number of repeating EventType entries.

noInstrAttrib

NumInGroup (2)

Number of repeating group InstrAttribType entries.

applID

String (50)

The channel ID as defined in the XML configuration file.

events

→eventType

String (50)

Activation

Inactivation

Modification

Indicates type of event.

→eventTime

UTC_TIMEONLY (20)

Time of event. This is a UTC time expressed as the number of nanoseconds since the Unix epoch time (Jan 1, 1970).

instrAttrib

→instrAttribType

String (50)

InstAttribType and InstAttribValue function together where InstAttribType indicates the type of value that InstAttribValue will contain.

→instrAttribValue

String (50)

Attribute value appropriate for the InstrAttribType field.

DISPLAY_PRICE_PRECISION

Number of decimals in displayed price.

INDEX_KEY

Unique ID.

FREE_CODE

When the preceding InstAttribType= Fee Code, the following value is valid for InstAttribValue:

• XW = All Fee Waived Indices

FREQUENCY

Publishing frequency (in seconds).

START_PUBLISH_TIME

Time that the messages will begin to be published. 

UTC Format: HHMMSSsss

END_PUBLISH_TIME

Time that the messages will no longer be published.

UTC Format: HHMMSSsss

INDEX_LONG_NAME

Name of the Index.

• CME CF Bitcoin Real Time Index

• CME CF Ether-Dollar Real Time Index

• CME CF Bitcoin Reference Rate

• CME CF Ether-Dollar Reference Rate

Bitcoin (Dollar)

BRTI

BRR

BRRNY

BRRAP

Bitcoin (Euro)

BTCEUR_RTI

BTCEUR_RR

N/A

N/A

Ether (Dollar)

ETHUSD_RTI

ETHUSD_RR

ETHUSD_NY

ETHUSD_AP

Ether (Euro)

ETHEUR_RTI

ETHUSD_RR

N/A

N/A

Ether/Bitcoin Ratio 

ETHBTC_USDRTI

ETHBTC_USDRR

N/A

N/A

Aave

AAVEUSD_RTI

AAVEUSD_RR

N/A

N/A

Algorand

ALGOUSD_RTI

ALGOUSD_RR

N/A

N/A

Avalanche

AVAXUSD_RTI

AXAVUSD_RR

N/A

N/A

Axie Infinity

AXSUSD_RTI

AXSUSD_RR

N/A

N/A

Bitcoin Cash

BCHUSD_RTI

BCHUSD_RR

N/A

N/A

Cardano

ADAUSD_RTI

ADAUSD_RR

N/A

N/A

Chainlink

LINKUSD_RTI

LINKUSD_RR

LINKUSD_NY

N/A

Chiliz

CHZUSD_RTI

CHZUSD_RR

N/A

N/A

Cosmos

ATOMUSD_RTI

ATOMUSD_RR

N/A

N/A

Curve

CRVUSD_RTI

CRVUSD_RR

N/A

N/A

Decentraland

MANAUSD_RTI

MANAUSD_RR

N/A

N/A

Filecoin

FILUSD_RTI

FILUSD_RR

N/A

N/A

Internet Computer

ICPUSD_RTI

ICPUSD_RR

N/A

N/A

Litecoin

LTCUSD_RTI

LTCUSD_RR

N/A

N/A

Polygon

POLUSD_RTI

POLUSD_RR

POLUSD_NY

N/A

Polkadot

DOTUSD_RTI

DOTUSD_RR

N/A

N/A

Solana

SOLUSD_RTI

SOLUSD_RR

N/A

N/A

Stellar Lumens

XLMUSD_RTI

XLMUSD_RR

N/A

N/A

Synthetix

SNXUSD_RTI

SNXUSD_RR

N/A

N/A

Tezos

XTZUSD_RTI

XTZUSD_RR

N/A

N/A

Uniswap

UNIUSD_RTI

UNIUSD_RR

NA

N/A

XRP

XRPUSD_RTI

XRPUSD_RR

XRPUSD_NY

N/A