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POST
/
v1
/
batch
/
contacts
Batch contact create
curl --request POST \
  --url https://api.heymarket.com/v1/batch/contacts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "phone": "12345678900",
    "avatar": "https://some.image.url.com/img.jpg",
    "custom": {},
    "display_name": "John Smith",
    "email": "john.s@heymarket.com",
    "first": "John",
    "last": "Smith",
    "external_id": "<string>",
    "type": "<string>",
    "timezone": "America/New_York",
    "assignee_id": 42,
    "tags": [
      {
        "tag_id": 1
      },
      {
        "tag_id": 2
      }
    ],
    "is_opted_out": true
  }
]
'
import requests

url = "https://api.heymarket.com/v1/batch/contacts"

payload = [
{
"phone": "12345678900",
"avatar": "https://some.image.url.com/img.jpg",
"custom": {},
"display_name": "John Smith",
"email": "john.s@heymarket.com",
"first": "John",
"last": "Smith",
"external_id": "<string>",
"type": "<string>",
"timezone": "America/New_York",
"assignee_id": 42,
"tags": [{ "tag_id": 1 }, { "tag_id": 2 }],
"is_opted_out": True
}
]
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify([
{
phone: '12345678900',
avatar: 'https://some.image.url.com/img.jpg',
custom: {},
display_name: 'John Smith',
email: 'john.s@heymarket.com',
first: 'John',
last: 'Smith',
external_id: '<string>',
type: '<string>',
timezone: 'America/New_York',
assignee_id: 42,
tags: [{tag_id: 1}, {tag_id: 2}],
is_opted_out: true
}
])
};

fetch('https://api.heymarket.com/v1/batch/contacts', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
CURLOPT_URL => "https://api.heymarket.com/v1/batch/contacts",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
[
'phone' => '12345678900',
'avatar' => 'https://some.image.url.com/img.jpg',
'custom' => [

],
'display_name' => 'John Smith',
'email' => 'john.s@heymarket.com',
'first' => 'John',
'last' => 'Smith',
'external_id' => '<string>',
'type' => '<string>',
'timezone' => 'America/New_York',
'assignee_id' => 42,
'tags' => [
[
'tag_id' => 1
],
[
'tag_id' => 2
]
],
'is_opted_out' => true
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
package main

import (
"fmt"
"strings"
"net/http"
"io"
)

func main() {

url := "https://api.heymarket.com/v1/batch/contacts"

payload := strings.NewReader("[\n {\n \"phone\": \"12345678900\",\n \"avatar\": \"https://some.image.url.com/img.jpg\",\n \"custom\": {},\n \"display_name\": \"John Smith\",\n \"email\": \"john.s@heymarket.com\",\n \"first\": \"John\",\n \"last\": \"Smith\",\n \"external_id\": \"<string>\",\n \"type\": \"<string>\",\n \"timezone\": \"America/New_York\",\n \"assignee_id\": 42,\n \"tags\": [\n {\n \"tag_id\": 1\n },\n {\n \"tag_id\": 2\n }\n ],\n \"is_opted_out\": true\n }\n]")

req, _ := http.NewRequest("POST", url, payload)

req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.post("https://api.heymarket.com/v1/batch/contacts")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("[\n {\n \"phone\": \"12345678900\",\n \"avatar\": \"https://some.image.url.com/img.jpg\",\n \"custom\": {},\n \"display_name\": \"John Smith\",\n \"email\": \"john.s@heymarket.com\",\n \"first\": \"John\",\n \"last\": \"Smith\",\n \"external_id\": \"<string>\",\n \"type\": \"<string>\",\n \"timezone\": \"America/New_York\",\n \"assignee_id\": 42,\n \"tags\": [\n {\n \"tag_id\": 1\n },\n {\n \"tag_id\": 2\n }\n ],\n \"is_opted_out\": true\n }\n]")
.asString();
require 'uri'
require 'net/http'

url = URI("https://api.heymarket.com/v1/batch/contacts")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "[\n {\n \"phone\": \"12345678900\",\n \"avatar\": \"https://some.image.url.com/img.jpg\",\n \"custom\": {},\n \"display_name\": \"John Smith\",\n \"email\": \"john.s@heymarket.com\",\n \"first\": \"John\",\n \"last\": \"Smith\",\n \"external_id\": \"<string>\",\n \"type\": \"<string>\",\n \"timezone\": \"America/New_York\",\n \"assignee_id\": 42,\n \"tags\": [\n {\n \"tag_id\": 1\n },\n {\n \"tag_id\": 2\n }\n ],\n \"is_opted_out\": true\n }\n]"

response = http.request(request)
puts response.read_body
[
  {
    "avatar": "<string>",
    "created": "<string>",
    "creator_id": 123,
    "custom": {},
    "display_name": "<string>",
    "email": "<string>",
    "external_id": "<string>",
    "external_ref": "<string>",
    "first": "<string>",
    "id": 123,
    "inbox_id": 123,
    "last": "<string>",
    "note": [
      {
        "date": "<string>",
        "id": "<string>",
        "name": "<string>",
        "text": "<string>",
        "user_id": 123
      }
    ],
    "op": "<string>",
    "parent_id": 123,
    "phone": "<string>",
    "rev": 123,
    "shared": true,
    "team_id": 123,
    "type": "<string>",
    "updated": "<string>",
    "assigned_user_id": 123,
    "tags": [
      "<unknown>"
    ]
  }
]
"<string>"
"Unauthorized"
"too many requests"
"error"
Use this endpoint when you need to create many v1 contacts in one request.

Authorizations

Authorization
string
header
required

Recommended authentication for new integrations. Generate a short-lived JWT from your API Secret ID and API Secret Key, then pass the signed JWT as a bearer token in the Authorization header.

API Secret credentials are available in the Heymarket app under Settings > Integrations > API. The Secret Key is shown only when it is generated, so copy and store it securely before closing the dialog.

Use the following JWT values:

{
"alg": "HS256",
"typ": "JWT"
}
{
"iss": "YOUR_API_SECRET_ID",
"iat": CURRENT_UNIX_TIMESTAMP
}

Replace CURRENT_UNIX_TIMESTAMP with the current Unix timestamp in seconds when generating the token.

Sign the JWT with HMAC-SHA256 using this signing secret:

YOUR_API_SECRET_ID||YOUR_API_SECRET_KEY

Send the signed JWT as a bearer token:

Authorization: Bearer YOUR_SIGNED_JWT

Tokens expire 5 minutes after the iat timestamp. Generate a new JWT per request, or cache it briefly for less than 5 minutes. Generate JWTs only from trusted server-side code; do not expose the API Secret Key in browser, mobile, or other client-side code.

Query Parameters

overwrite
boolean

Overwrite existing matching contacts

Body

application/json

Array of json contacts to create

phone
string<phone>
required
Example:

"12345678900"

avatar
string<url>
Example:

"https://some.image.url.com/img.jpg"

custom
object
display_name
string
Example:

"John Smith"

email
string<email>
Example:

"john.s@heymarket.com"

first
string
Example:

"John"

last
string
Example:

"Smith"

external_id
string

External Contact ID

type
string

External Service

timezone
string

IANA timezone for the contact (e.g., America/New_York)

Example:

"America/New_York"

assignee_id
integer
Example:

42

tags
object[]
Example:
[{ "tag_id": 1 }, { "tag_id": 2 }]
is_opted_out
boolean
Example:

true

Response

Contacts not created or overwritten

avatar
string
created
string
creator_id
integer
custom
object
display_name
string
email
string
external_id
string
external_ref
string
first
string
id
integer
inbox_id
integer
last
string
note
object[]
op
string
parent_id
integer
phone
string
rev
integer
shared
boolean
team_id
integer
type
string
updated
string
assigned_user_id
integer
tags
any[]