List Segment Contacts

Retrieve a list of contacts in a segment.

Path Parameters

The Segment ID.

Query Parameters

  {isRequired ?

limit (number) — Number of contacts to retrieve.
- Default value: 20
- Maximum value: 100
- Minimum value: 1

: <>

Note that the limit parameter is optional. If you do not provide a limit, all contacts will be returned in a single response.

limit (number) — Number of contacts to retrieve.
- Maximum value: 100
- Minimum value: 1
```
</>}
```
  - after (string) — The ID after which we'll retrieve more contacts (for pagination). This ID will not be included in the returned list. Cannot be used with the before parameter.
  - before (string) — The ID before which we'll retrieve more contacts (for pagination). This ID will not be included in the returned list. Cannot be used with the after parameter.
    
    You can only use either after or before parameter, not both. See our pagination guide for more information.
  </>

Node.js

import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.contacts.list({
  segmentId: '78261eea-8f8b-4381-83c6-79fa7120f1cf',
});

PHP

$resend = Resend::client('re_xxxxxxxxx');

$resend->contacts->list([
  'segment_id' => '78261eea-8f8b-4381-83c6-79fa7120f1cf',
]);

Python

import resend

resend.api_key = 're_xxxxxxxxx'

contacts = resend.Contacts.list(segment_id='78261eea-8f8b-4381-83c6-79fa7120f1cf')

Ruby

require 'resend'

Resend.api_key = 're_xxxxxxxxx'

contacts = Resend::Contacts.list(segment_id: '78261eea-8f8b-4381-83c6-79fa7120f1cf')

package main

import (
	"context"
	"fmt"

	"github.com/resend/resend-go/v4"
)

func main() {
	ctx := context.TODO()
	client := resend.NewClient("re_xxxxxxxxx")

	contacts, err := client.Contacts.ListWithContext(ctx, &resend.ListContactsOptions{
		SegmentId: "78261eea-8f8b-4381-83c6-79fa7120f1cf",
	})
	if err != nil {
		panic(err)
	}
	fmt.Println(contacts)
}

Java

import com.resend.Resend;
import com.resend.core.exception.ResendException;
import com.resend.services.contacts.model.ListContactsResponseSuccess;

public class Main {
    public static void main(String[] args) throws ResendException {
        Resend resend = new Resend("re_xxxxxxxxx");

        ListContactsResponseSuccess response = resend.contacts().list("78261eea-8f8b-4381-83c6-79fa7120f1cf");
    }
}

cURL

curl -X GET 'https://api.resend.com/segments/78261eea-8f8b-4381-83c6-79fa7120f1cf/contacts' \
     -H 'Authorization: Bearer re_xxxxxxxxx'

CLI

resend segments contacts 78261eea-8f8b-4381-83c6-79fa7120f1cf

Response

{
  "object": "list",
  "has_more": false,
  "data": [
    {
      "id": "e169aa45-1ecf-4183-9955-b1499d5701d3",
      "email": "steve.wozniak@gmail.com",
      "first_name": "Steve",
      "last_name": "Wozniak",
      "created_at": "2026-10-06 23:47:56.678+00",
      "unsubscribed": false
    }
  ]
}