Send a video
POST /v1/messages/video — a video from a public link, with an optional caption.
Notes
urlmust be a publichttp(s)link directly to the video file. A link to a video page — YouTube, Vimeo, a Drive preview — will not work; those serve HTML, not a file.captionis shown under the video and is capped at 1,024 characters.mime_typeis an optional hint such asvideo/mp4.- MP4 with H.264 video and AAC audio is the combination WhatsApp handles most reliably.
- Keep videos small. WhatsApp itself limits attachment sizes, and a large file makes the send slow and more likely to time out with
502 upstream_unavailable.
Example
Authorizations
Your API key, sent in an apikey request header. Never in the URL, never as a Bearer token.
Body
Which of your connected numbers to send FROM. Copy it from your numbers screen in the portal, or from GET /v1/instances. It must belong to your account.
"3f9c1a2b-7d4e-4c81-9f0a-2b6d5e8c1a34"
The recipient, with country code and no leading zero — for example 919876543210. Spaces, dashes, brackets and a leading + are accepted and stripped; 6 to 15 digits must remain.
"919876543210"
A public http(s) link to the file. There is no upload endpoint — we fetch the file from this link, so it must be reachable from the internet and be a direct link to the file itself, not a preview or share page. Private, internal and loopback addresses are refused, as are links containing a username or password.
2048"https://example.com/receipt-2043.png"
Text shown with the file. Up to 1,024 characters.
1024"Your receipt"
Optional content-type hint such as application/pdf. It is checked for the shape type/subtype only — we do not verify it matches the file. Usually you can leave it out.
128"application/pdf"
Send this message as a reply, quoting an earlier one. Use the data.message_id returned by a previous send.
128"3EB0C1D2F4A5B6C7D8E9"
Set true when the quoted message is one you sent from this number. Only valid together with quoted_message_id.

