Datadog · OpenAPI Overlay 1.0.0

API Evangelist conversational phrasing for Datadog Cardinality API

2 actions 2 updates phrasing extends openapi/datadog-cardinality-api-openapi.yml

Generated by API Evangelist Written by API Evangelist tooling for Datadog's API. It is a proposal applied on top of the contract, not a document Datadog publishes.

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What the actions change

x-apievangelist-phrasing

Targets 2

$.info

$.paths['/api/v2/metrics/{metric_name}/estimate'].get

OpenAPI Overlay

# Generated by API Evangelist (build-phrasing.py). Our phrasing, not observed demand.
overlay: 1.0.0
info:
  title: API Evangelist conversational phrasing for Datadog Cardinality API
  version: 1.0.0
extends: openapi/datadog-cardinality-api-openapi.yml
actions:
- target: $.info
  update:
    x-apievangelist-phrasing:
      method: generated
      generated: '2026-10-01'
      generator: build-phrasing.py
      label: Generated by API Evangelist
      operations: 1
- target: $.paths['/api/v2/metrics/{metric_name}/estimate'].get
  update:
    x-apievangelist-phrasing:
      intent: Estimate a metric's cardinality for a tag config
      effect: read
      questions:
      - How many custom metric series would I get if I limit a metric to certain tags?
      - Can I estimate cardinality including percentiles for a distribution metric?
      instructions:
      - text: Estimate cardinality for metric {metric_name}.
        slots:
          metric_name: path.metric_name
      - text: Estimate series for {metric_name} if queryable by tags {groups}.
        slots:
          metric_name: path.metric_name
          groups: query.filter[groups]
      - text: Estimate {metric_name} cardinality over the last {hours_ago} hours.
        slots:
          metric_name: path.metric_name
          hours_ago: query.filter[hours_ago]
      method: generated
      generated: '2026-10-01'