# Wunderkind Text Message API

**Canonical:** https://apis.io/apis/wunderkind/wunderkind-text-message-api/  
**Provider:** Wunderkind — https://apis.io/providers/wunderkind/  
**Base URL:** https://api.wknd.ai  
**Documentation:** https://developer.wunderkind.co/reference/text-message-api

Wunderkind Text Message API is one of 7 APIs that [Wunderkind](https://apis.io/providers/wunderkind/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include SMS and Messaging. The published artifact set on APIs.io includes an API reference and API documentation.

RESTful endpoints for delivering text messages from platforms external to the Wunderkind ecosystem (ESP, CDP, etc.): single and bulk sends of up to 50,000 messages per request, message status lookup, subscription status checks, and subscribe/unsubscribe of phone numbers. Authenticated with X-Client-ID and X-Client-Secret headers; rate limited to 300 requests per second per website. No OpenAPI is published for this API; the reference is markdown documentation.

## Machine-readable artifacts (3)

- **APIReference** — https://developer.wunderkind.co/reference/text-message-api
- **Documentation** — https://developer.wunderkind.co/reference/bulk-text-message-api
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/wunderkind/refs/heads/main/apis.yml

## Other Wunderkind APIs (6)

- [Wunderkind Email API](https://apis.io/apis/wunderkind/wunderkind-email-api/)
- [Wunderkind Id Resolution API](https://apis.io/apis/wunderkind/wunderkind-id-resolution-api/)
- [Wunderkind Identity API](https://apis.io/apis/wunderkind/wunderkind-identity-api/)
- [Wunderkind Send Event API](https://apis.io/apis/wunderkind/wunderkind-send-event-api/)
- [Wunderkind Ucrm API](https://apis.io/apis/wunderkind/wunderkind-ucrm-api/)
- [Wunderkind Wunderhook API](https://apis.io/apis/wunderkind/wunderkind-wunderhook-api/)

## Tags

SMS, Messaging

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