WhatsApp API - disable link preview thumbnails in messages
When you send a freeform text with a link, you send it to Meta with link preview enabled (preview_url on), and that's hardcoded on you side, there's no parameter in the send body to disable it. So any URL in the message body will render its thumbnail.
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Comments1
Miquel Palet López
Aug 26
This shipped on 18 August 2026. Send
linkPreview: falsein the JSON body ofPOST /v1/inbox/conversations/{conversationId}/messages(it is also accepted onPOST /v1/inbox/conversationswhen you open a conversation with a Direct Send text), and we passpreview_url: falsethrough to Meta's Cloud API so the URL stays plain text with no thumbnail card. It defaults totrue, which is how every WhatsApp text was sent before this, and it is ignored on other platforms. One detail worth knowing: the field is read from the JSON body only, not from multipart requests.