POST

Create Contact Note

Attaches a new note to a contact.

POSThttps://api.vantaxai.com/v1/contacts/{contact_id}/notes

Headers

Authorizationstringrequired
Bearer authentication with your secret API key.
example: Bearer vx_live_3fa9c2…
Content-Typestringrequired
Must be application/json for requests with a body.
example: application/json

Path Parameters

contact_idstringrequired
The contact to attach the note to.
example: ct_9b21d3

Body Parameters

notestringrequired
The note's body text.
example: Called about a quote for the spring campaign.

Request

curl -X POST https://api.vantaxai.com/v1/contacts/ct_9b21d3/notes \
  -H "Authorization: Bearer vx_live_3fa9c2..." \
  -H "Content-Type: application/json" \
  -d '{
  "note": "Called about a quote for the spring campaign."
}'

const res = await fetch(
  "https://api.vantaxai.com/v1/contacts/ct_9b21d3/notes",
  {
  method: "POST",
  headers: {
    Authorization: "Bearer vx_live_3fa9c2...",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "note": "Called about a quote for the spring campaign."
  }),
  }
);
const { data } = await res.json();

import { Vantax } from "@vantax/sdk";

const vantax = new Vantax({ apiKey: process.env.VANTAX_API_KEY! });
// POST /v1/contacts/{contact_id}/notes
const result = await vantax.request("POST", "/v1/contacts/{contact_id}/notes", {
  "note": "Called about a quote for the spring campaign."
});

from vantax import Vantax

vantax = Vantax(api_key=os.environ["VANTAX_API_KEY"])
# POST /v1/contacts/{contact_id}/notes
result = vantax.request("POST", "/v1/contacts/{contact_id}/notes", json={"note": "Called about a quote for the spring campaign."})

Response

{
  "success": true,
  "message": "Note created successfully",
  "data": {
    "id": "note_61aa09",
    "contact_id": "ct_9b21d3",
    "note": "Called about a quote for the spring campaign.",
    "created_at": "2026-01-15T14:05:00Z"
  }
}

{
  "success": false,
  "message": "Validation failed",
  "errors": [
    { "field": "note", "message": "note is required" }
  ]
}