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Klaviyo API (Previous Stable) (v2025-07-15)

JSON →
api 2025-07-15
api_key
crm

REST API for Klaviyo marketing automation. Base: a.klaviyo.com

https://a.klaviyo.com

Resources

docsdevelopers.klaviyo.com ↗
homepagewww.klaviyo.com ↗

API endpoints

full doc /v1/registry/klaviyo-api-v2025-07-15