Contracts

Contents

• Contracts Cnt with Bal > 0

• Contracts Cnt

• ERC-20 Contracts Cnt

• ERC-721 Contracts Cnt

• ERC-1155 Contracts Cnt

Contracts Cnt with Bal > 0

Definition

The sum count of unique contracts that exist in the ledger and that hold a balance (i.e., own a non-zero amount) of native units at the end of the interval. A contract is a special address that contains and can execute code.

Name	MetricID	Unit	Interval
Contracts Cnt with Bal >0	ContBalCnt	Contracts	1 day

Details

• Contracts with no balance in native units are not counted.

Asset-Specific Details

• This metric is only available for ETH and ETC.

Release History

• Version 4.2 of CM Network Data Pro Daily Macro (End of Day)

Availability for Assets

Coin Metrics CoverageCoin Metrics Coverage

Contracts Cnt

Definition

The sum count of unique contracts that exist in the ledger at the end of the interval. A contract is a special address that contains and can execute code.

Name	MetricID	Unit	Interval
Contracts Cnt	ContCnt	Contracts	1 day

Details

• Contracts with no balance in native units are counted.

Asset-Specific Details

• This metric is only available for ETH and ETC.

Release History

• Version 4.2 of CM Network Data Pro Daily Macro (End of Day)

Availability for Assets

Coin Metrics CoverageCoin Metrics Coverage

ERC-20 Contracts Cnt

Definition

The sum count of unique ERC-20 contracts that exist on the ledger at the end of the interval. A contract is a special address that contains and can execute code. Contracts that contain all of the following are considered to be ERC-20 contracts: the balanceOf function, the transfer function, and the Transfer event hash.

Name	MetricID	Unit	Interval
ERC-20 Contracts Cnt	ContERC20Cnt	Contracts	1 day

Details

• Contracts with no balance in native units are counted.

• Full compliance with the ERC-20 standard is not required as only few ERC-20 tokens attain it. We therefore look for the bare minimum methods and events necessary for wallet integration of the token: balanceOf and transfer functions as well as the Transfer event. If a contract’s code has all of the following markers, it is considered to be ERC-20:

• • Signature of the balanceOf function: 6370a082311461

  • Signature of the transfer function: 63a9059cbb1461

  • Hash of the transfer event ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef

Asset-Specific Details

• This metric is only available for ETH and ETC.

Release History

• Version 4.3 of CM Network Data Pro Daily Macro (End of Day)

Availability for Assets

Coin Metrics CoverageCoin Metrics Coverage

Definition

The sum count of unique contracts that exist in the ledger at the end of the interval. A contract is a special address that contains and can execute code.

Name	MetricID	Unit	Interval
Contracts Cnt	ContCnt	Contracts	1 day

Details

• Contracts with no balance in native units are counted.

Asset-Specific Details

• This metric is only available for ETH and ETC.

Release History

• Version 4.2 of CM Network Data Pro Daily Macro (End of Day)

Availability for Assets

Coin Metrics CoverageCoin Metrics Coverage

ERC-721 Contracts Cnt

Definition

The sum count of unique contracts implementing the ERC-721 standard that exist in the ledger at the end of the interval. A contract is a special address that contains and can execute code. ERC-165 is used to determine a contract’s compliance with ERC-721.

Name	MetricID	Unit	Interval
ERC-721 Contracts Cnt	ContERC721Cnt	Contracts	1 day

Details

• Contracts with no balance in native units are counted.

• ERC-721 contracts are detected if they implement the ERC-165-compatible interface defined in the ERC-721 specification using the procedure specified in the ERC-165 specification.

Asset-Specific Details

• This metric is only available for ETH and ETC.

Release History

• Version 4.3 of CM Network Data Pro Daily Macro (End of Day)

Availability for Assets

Coin Metrics CoverageCoin Metrics Coverage

ERC-1155 Contracts Cnt

Definition

The sum count of unique smart contracts implementing the ERC-1155 standard present in the blockchain at the end of the interval. A smart contract exists in a blockchain network as a special address that contains and can execute code. The ERC-1155 standard is an emerging standard for the issuance of both fungible and non-fungible tokens on Ethereum. As of this metric's release date, the standard has attained considerable traction in the ecosystem of Non-Fungible Tokens.

Name	MetricID	Unit	Interval
ERC-1155 Contracts Cnt	ContERC1155Cnt	Contracts	1 day

Details

• This metric is calculated by monitoring the blockchain for contracts that comply with the ERC-1155 standard_,_ as defined by the EIP-1155 Standard Specification.
• Like ERC-721 contracts, the activity of ERC-1155s is detected with the help of a secondary standard, ERC-165, which provides an interface for both 751 as well as 1155-compliant events.

Asset-Specific Details

• As this metric is tailored to the Ethereum ecosystem, it is only available for ETH .

Release History

• Released in Network Data Pro (NDP) version 5.1

Availability for Assets

Coin Metrics CoverageCoin Metrics Coverage

API Endpoints

Contracts metrics can be accessed using these endpoints:

• timeseries/asset-metrics

and by passing in the metric ID's Cont* in the metrics parameter.

Asset metrics

get

Returns requested metrics for specified assets. Results for block by block metrics (1b frequency) are ordered by tuple (asset, height, block_hash), all other metrics are ordered by tuple (asset, time). You can change the sorting using sort query parameter. Supported output formats are json (default) and csv, use format query parameter to override it. To fetch the next page of results use next_page_url JSON response field or x-next-page-url CSV HTTP header if present. If multiple metrics are requested in the same time the strict policy for partially available metrics among requested ones is applied:

Authorizations

Query parameters

assetsstring[]Required

Comma separated list of assets. Use the /catalog-all/assets endpoint for the full list of supported assets or specify asterisk (*) in order to get metrics for all supported assets.

metricsstring[]Required

Comma separated metrics to request time series data for. Information on all available metrics can be found on page https://coverage.coinmetrics.io/asset-metrics-v2. Use the /catalog-all/metrics or /catalog-all/assets endpoint for the full list of supported metrics per asset.

Example: ["AdrActCnt","BlkHgt"]

frequencystringOptional

Frequency of the metrics. Supported values are 1b (block by block), 1s (one second), 1m (one minute), 5m (five minutes), 10m (ten minutes), 1h (one hour), 1d (one day), 1d-ny-close (one day at New York close time). Please refer to the /catalog/metrics endpoint for the full list. Use the /catalog-all/assets endpoint for the full list of supported frequencies per asset-metric pair.

Default: 1dExample: 1b

statusstring · enumOptional

Which metric values do you want to see. Applicable only for "reviewable" metrics. You can find them in the /catalog/metrics endpoint.

Default: allPossible values:

start_timestringOptional

Start of the time interval. This field refers to the time field in the response. Multiple formats of ISO 8601 are supported: 2006-01-20T00:00:00Z, 2006-01-20T00:00:00.000Z, 2006-01-20T00:00:00.123456Z, 2006-01-20T00:00:00.123456789Z, 2006-01-20, 20060120. Inclusive by default. Mutually exclusive with start_height and start_hash. UTC timezone by default. Z suffix is optional and timezone parameter has a priority over it. If start_time is omitted, response will include time series from the earliest time available.

end_timestringOptional

End of the time interval. This field refers to the time field in the response. Multiple formats of ISO 8601 are supported: 2006-01-20T00:00:00Z, 2006-01-20T00:00:00.000Z, 2006-01-20T00:00:00.123456Z, 2006-01-20T00:00:00.123456789Z, 2006-01-20, 20060120. Inclusive by default. Mutually exclusive with end_height and end_hash. UTC timezone by default. Z suffix is optional and timezone parameter has a priority over it. If end_time is omitted, response will include time series up to the latest time available.

start_heightinteger · int64Optional

The start height indicates the beginning block height for the set of data that are returned. Inclusive by default. Mutually exclusive with start_time and start_hash.

end_heightinteger · int64Optional

The end height indicates the ending block height for the set of data that are returned. Inclusive by default. Mutually exclusive with end_time and end_hash. This parameter is disabled for Community users.

start_hashstringOptional

The start hash indicates the beginning block height for the set of data that are returned. Inclusive by default. Mutually exclusive with start_time and start_height.

end_hashstringOptional

The end hash indicates the ending block height for the set of data that are returned. Inclusive by default. Mutually exclusive with end_time and end_height.

start_inclusivebooleanOptional

Inclusive or exclusive corresponding start_* parameters.

Default: true

end_inclusivebooleanOptional

Inclusive or exclusive corresponding end_* parameters.

Default: true

min_confirmationsinteger · int32 · max: 99Optional

Specifies how many blocks behind the chain tip block by block metrics (1b frequency) are based on. Default for btc is 2 and 99 for eth. For example, a min_confirmations of 0 means metrics are being calculated for the block at the tip of the chain (the latest block received by our node) whereas a min_confirmations of 6 means that metrics are being applied to the block that is 6 blocks behind the chain tip (i.e., the 7th block if the chain tip is block 1).

timezonestringOptional

Timezone name for start_time and end_time timestamps. This parameter does not modify the output times, which are always UTC. Format is defined by TZ database.

Default: UTCExample: America/New_York

page_sizeinteger · int32 · min: 1 · max: 10000Optional

Number of items per single page of results. The value of this parameter is ignored if the endpoint supports the format parameter and its value is set to json_stream.

Default: 100

paging_fromstring · enumOptional

Where does the first page start, at the start of the interval or at the end. The value of this parameter is ignored if the endpoint supports the format parameter and its value is set to json_stream.

Default: endPossible values:

sortstring · enumOptional

How results will be sorted. Metrics with 1b frequency are sorted by (asset, height, block_hash) tuples by default. Metrics with other frequencies are sorted by (asset, time) by default. If you want to sort 1d metrics by (time, asset) you should choose time as value for the sort parameter. Sorting by time is useful if you request metrics for a set of assets.

Default: assetPossible values:

limit_per_assetinteger · int32Optional

How many entries per asset result should contain. For example, this combination of parameters assets=btc,eth&metrics=ReferenceRate&limit_per_asset=1 returns the latest ReferenceRate values for btc and eth.

prettybooleanOptional

Human-readable formatting of JSON responses.

Default: false

formatstring · enumOptional

Format of the response.

Default: jsonPossible values:

null_as_zerobooleanOptional

Nulls are represented as zeros in the response.

Default: false

next_page_tokenstringOptional

Token for receiving the results from the next page of a query. Should not be used directly. To iterate through pages just use next_page_url response field.

ignore_forbidden_errorsbooleanOptional

Ignore "forbidden" errors for the items you currently don't have access to.

Default: false

ignore_unsupported_errorsbooleanOptional

Ignore "unsupported" errors for not currently supported by Coin Metrics items.

Default: false

Responses

200

Time series of metrics for an asset.

application/jsontext/csv

400

Asset not found.

application/json

401

Requested resource requires authorization.

application/json

403

Requested resource is not available with supplied credentials.

application/json

414

Provided URI is too long. It must not be greater than 10000 symbols.

get

HTTPcURLJavaScriptPython

GET /v4/timeseries/asset-metrics HTTP/1.1
Host: api.coinmetrics.io
Accept: */*

{
  "data": [
    {
      "asset": "btc",
      "time": "2020-02-29T00:00:00.000000000Z",
      "PriceUSD": "8582.09029964933",
      "SplyBMXNtv": "283220.10827406",
      "SplyBMXNtv-status": "reviewed",
      "SplyBMXNtv-status-time": "2020-03-01T09:59:13.847251000Z"
    },
    {
      "asset": "btc",
      "time": "2020-03-01T00:00:00.000000000Z",
      "PriceUSD": "8541.77389392169",
      "SplyBMXNtv": "284691.32323907",
      "SplyBMXNtv-status": "reviewed",
      "SplyBMXNtv-status-time": "2020-03-02T14:00:02.622168000Z"
    }
  ],
  "next_page_token": "0.MjAyMC0wNi0wN1QwMDowMDowMFo,MjAyMC0wNi0wN1QwMDowMDowMFo",
  "next_page_url": "https://api.coinmetrics.io/v4/timeseries/asset-metrics?api_key=<your_key>&pretty=true&assets=btc&metrics=SplyBMXNtv,PriceUSD&page_size=2&next_page_token=0.MjAyMC0wNi0wN1QwMDowMDowMFo,MjAyMC0wNi0wN1QwMDowMDowMFo"
}

Shell

curl --compressed "https://api.coinmetrics.io/v4/timeseries/asset-metrics?metrics=ContBalCnt&assets=eth&pretty=true&api_key=<your_key>"

Python

import requests
response = requests.get('https://api.coinmetrics.io/v4/timeseries/asset-metrics?metrics=ContBalCnt&assets=eth&pretty=true&api_key=<your_key>').json()
print(response)

Python Client

from coinmetrics.api_client import CoinMetricsClient

api_key = "<API_KEY>"
client = CoinMetricsClient(api_key)

print(
    client.get_asset_metrics(
        metrics="ContBalCnt", 
        assets="eth",
    ).to_dataframe()
)