# Customer.io Data Index API

**Canonical:** https://apis.io/apis/customer-io/customer-io-data-index-api/  
**Provider:** Customer.io — https://apis.io/providers/customer-io/  
**Base URL:** https://track.customer.io  
**Documentation:** https://docs.customer.io/integrations/api/track/

Customer.io Data Index API is one of 42 APIs that [Customer.io](https://apis.io/providers/customer-io/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Data Index. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

Update descriptions for attributes and events in your workspace. This helps improve AI-generated content and segments.

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/customer-io/refs/heads/main/openapi/customer-io-data-index-api-openapi.yml
- **Documentation** — https://docs.customer.io/integrations/api/app/
- **Documentation** — https://docs.customer.io/integrations/data-in/connections/http-api/

## Other Customer.io APIs (12)

- [Customer.io Track API](https://apis.io/apis/customer-io/track-api/)
- [Customer.io Activities API](https://apis.io/apis/customer-io/customer-io-activities-api/)
- [Customer.io Alias API](https://apis.io/apis/customer-io/customer-io-alias-api/)
- [Customer.io Batch API](https://apis.io/apis/customer-io/customer-io-batch-api/)
- [Customer.io Broadcasts API](https://apis.io/apis/customer-io/customer-io-broadcasts-api/)
- [Customer.io Campaigns API](https://apis.io/apis/customer-io/customer-io-campaigns-api/)
- [Customer.io Collections API](https://apis.io/apis/customer-io/customer-io-collections-api/)
- [Customer.io Customers API](https://apis.io/apis/customer-io/customer-io-customers-api/)
- [Customer.io Exports API](https://apis.io/apis/customer-io/customer-io-exports-api/)
- [Customer.io Group API](https://apis.io/apis/customer-io/customer-io-group-api/)
- [Customer.io Identify API](https://apis.io/apis/customer-io/customer-io-identify-api/)
- [Customer.io Messages API](https://apis.io/apis/customer-io/customer-io-messages-api/)

## Tags

Data Index

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