# AdCrunch Custom audiences API

**Canonical:** https://apis.io/apis/adcrunch-dev/adcrunch-dev-custom-audiences-api/  
**Provider:** AdCrunch — https://apis.io/providers/adcrunch-dev/  
**Base URL:** https://api.adcrunch.dev  
**Documentation:** https://docs.adcrunch.dev/api

AdCrunch Custom audiences API is one of 20 APIs that [AdCrunch](https://apis.io/providers/adcrunch-dev/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Custom Audiences. The published artifact set on APIs.io includes an OpenAPI specification.

The Meta Custom Audiences of an ad account: the groups of people that an ad set can include or exclude. A Custom Audience is configuration of the ad account, not an entity: it has no Insight, and AdCrunch stores none, so this tag has no stored read. Its live read asks Meta for the audiences of one advertiser. On Meta, you can also create a website audience from the events of a Pixel, or a lookalike of another audience. A change is asynchronous. The operation answers `202` and starts a Mutation. You poll the Mutation for its outcome.

## Operations (2)

| Method | Path | Summary |
|---|---|---|
| GET | `/observe/{advertiserId}/custom-audiences` | List an advertiser’s Meta Custom Audiences |
| POST | `/mutations/{advertiserId}/custom-audiences` | Create a Custom Audience |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/adcrunch-dev/openapi/adcrunch-dev-custom-audiences-api-openapi.yml

## Other AdCrunch APIs (12)

- [AdCrunch Ad groups API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-ad-groups-api/)
- [AdCrunch Ads API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-ads-api/)
- [AdCrunch Asset groups API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-asset-groups-api/)
- [AdCrunch Assets API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-assets-api/)
- [AdCrunch Brands API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-brands-api/)
- [AdCrunch Campaign Plans API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-campaign-plans-api/)
- [AdCrunch Campaigns API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-campaigns-api/)
- [AdCrunch Creatives API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-creatives-api/)
- [AdCrunch Custom conversions API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-custom-conversions-api/)
- [AdCrunch Documents API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-documents-api/)
- [AdCrunch Insights API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-insights-api/)
- [AdCrunch Line Items API](https://apis.io/apis/adcrunch-dev/adcrunch-dev-line-items-api/)

## Tags

Custom Audiences

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/adcrunch-dev/adcrunch-dev-custom-audiences-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/adcrunch-dev/.