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POST
Send WhatsApp text message

Authorizations

Authorization
string
header
required

Organization API key (flo_…). Paste the full key; Scalar sends Authorization: Bearer <key>.

Body

application/json
to
string
required
Required string length: 3 - 32
text
string
required
Required string length: 1 - 4096
whatsappChannelId
string<cuid>

Response

Message accepted and stored

id
string
required
conversationId
string
required
contactId
string
required
metaMessageId
string | null
required
Last modified on August 8, 2026