What Is origin_key?

Learn what origin_key means in growthepie and where to find valid origin_key values.

origin_key is the canonical growthepie identifier for a covered entity, most commonly a chain. You use origin_key values such as arbitrum, base, ethereum, or zksync_era to filter flat exports and to address richer endpoints such as chains/{origin_key}/overview.json.

Key Facts

• origin_key is lowercase and stable enough to be used in code and URLs

• The canonical list of public chain origin_key values lives in master.json

• origin_key appears in flat export rows together with metric_key, date, and value

• origin_key is not a display name; for example, arbitrum maps to the display name Arbitrum One

Example

{
  "metric_key": "txcount",
  "origin_key": "arbitrum",
  "date": "2021-05-29",
  "value": 9.0
}

Synonyms And Nearby Terms

• Search synonym: chain key

• Search synonym: chain slug

• Not the same thing: display name

• Not the same thing: owner_project

FAQ

Where do I get valid origin_key values?

Use master.json. Each chain entry in master.json.chains includes metadata and supported metrics.

Does origin_key only refer to chains?

In the public endpoints documented on this site, origin_key is primarily used for chains. Project coverage uses owner_project instead.

Related Pages

• Supported Chains And origin_key

• Endpoint: master.json