Create Client Subscription

post https://a.klaviyo.com/client/subscriptions/

Create a new subscription for the given list ID and channel:

Email email
SMS phone_number

This endpoint is specifically designed to be called from publicly-browseable, client-side environments only. To create subscriptions from server-based applications, please use POST /api/profile-subscription-bulk-create-jobs

Rate limits:
Burst: 100/s
Steady: 700/m

Scopes:
subscriptions:write

Response

202

Language


xxxxxxxxxx
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curl --request POST \
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     --url 'https://a.klaviyo.com/client/subscriptions/?company_id=PUBLIC_API_KEY' \
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     --header 'content-type: application/json' \
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     --header 'revision: 2023-02-22' \
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     --data '
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{
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  "data": {
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    "type": "subscription",
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    "attributes": {
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      "list_id": "Y6nRLr",
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      "custom_source": "Homepage footer signup form",
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      "email": "matt.kemp@klaviyo-demo.com",
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      "phone_number": "+15005550006"
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    }
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  }
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}
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'