curl --request POST \
--url https://brew.new/api/v1/audiences \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"name": "Nordic Founders",
"filters": {
"filters": [
{
"field": "country",
"operator": "equals",
"value": "NO"
}
],
"logicalOperator": "and"
}
}
'import requests
url = "https://brew.new/api/v1/audiences"
payload = {
"name": "Nordic Founders",
"filters": {
"filters": [
{
"field": "country",
"operator": "equals",
"value": "NO"
}
],
"logicalOperator": "and"
}
}
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({
name: 'Nordic Founders',
filters: {
filters: [{field: 'country', operator: 'equals', value: 'NO'}],
logicalOperator: 'and'
}
})
};
fetch('https://brew.new/api/v1/audiences', 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://brew.new/api/v1/audiences",
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([
'name' => 'Nordic Founders',
'filters' => [
'filters' => [
[
'field' => 'country',
'operator' => 'equals',
'value' => 'NO'
]
],
'logicalOperator' => 'and'
]
]),
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://brew.new/api/v1/audiences"
payload := strings.NewReader("{\n \"name\": \"Nordic Founders\",\n \"filters\": {\n \"filters\": [\n {\n \"field\": \"country\",\n \"operator\": \"equals\",\n \"value\": \"NO\"\n }\n ],\n \"logicalOperator\": \"and\"\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://brew.new/api/v1/audiences")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"name\": \"Nordic Founders\",\n \"filters\": {\n \"filters\": [\n {\n \"field\": \"country\",\n \"operator\": \"equals\",\n \"value\": \"NO\"\n }\n ],\n \"logicalOperator\": \"and\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://brew.new/api/v1/audiences")
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 \"name\": \"Nordic Founders\",\n \"filters\": {\n \"filters\": [\n {\n \"field\": \"country\",\n \"operator\": \"equals\",\n \"value\": \"NO\"\n }\n ],\n \"logicalOperator\": \"and\"\n }\n}"
response = http.request(request)
puts response.read_body{
"audienceId": "jn7a8w4q8m9k2p1x7c3b5v6n9h7s2d4f",
"audienceName": "Nordic Founders",
"filters": {
"filters": [
{
"field": "country",
"operator": "equals",
"value": "NO"
}
],
"logicalOperator": "and"
},
"count": 1284,
"createdAt": "2026-04-08T12:34:56.789Z",
"updatedAt": "2026-04-08T12:34:56.789Z"
}Create an audience
Creates a saved audience from a name + filter set ({ filters: [{ field, operator, value? }], logicalOperator: "and" | "or" }). Returns 201 with the bare audience row. An email in [...] clause listing more than 100 addresses is converted automatically: a fresh date custom field is stamped on the listed EXISTING contacts and the stored filter becomes customFields.<field> is_not_empty (a snapshot — addresses with no contact record are skipped), reported back as emailListMaterializations; 10,000 addresses max per clause.
curl --request POST \
--url https://brew.new/api/v1/audiences \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"name": "Nordic Founders",
"filters": {
"filters": [
{
"field": "country",
"operator": "equals",
"value": "NO"
}
],
"logicalOperator": "and"
}
}
'import requests
url = "https://brew.new/api/v1/audiences"
payload = {
"name": "Nordic Founders",
"filters": {
"filters": [
{
"field": "country",
"operator": "equals",
"value": "NO"
}
],
"logicalOperator": "and"
}
}
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({
name: 'Nordic Founders',
filters: {
filters: [{field: 'country', operator: 'equals', value: 'NO'}],
logicalOperator: 'and'
}
})
};
fetch('https://brew.new/api/v1/audiences', 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://brew.new/api/v1/audiences",
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([
'name' => 'Nordic Founders',
'filters' => [
'filters' => [
[
'field' => 'country',
'operator' => 'equals',
'value' => 'NO'
]
],
'logicalOperator' => 'and'
]
]),
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://brew.new/api/v1/audiences"
payload := strings.NewReader("{\n \"name\": \"Nordic Founders\",\n \"filters\": {\n \"filters\": [\n {\n \"field\": \"country\",\n \"operator\": \"equals\",\n \"value\": \"NO\"\n }\n ],\n \"logicalOperator\": \"and\"\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://brew.new/api/v1/audiences")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"name\": \"Nordic Founders\",\n \"filters\": {\n \"filters\": [\n {\n \"field\": \"country\",\n \"operator\": \"equals\",\n \"value\": \"NO\"\n }\n ],\n \"logicalOperator\": \"and\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://brew.new/api/v1/audiences")
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 \"name\": \"Nordic Founders\",\n \"filters\": {\n \"filters\": [\n {\n \"field\": \"country\",\n \"operator\": \"equals\",\n \"value\": \"NO\"\n }\n ],\n \"logicalOperator\": \"and\"\n }\n}"
response = http.request(request)
puts response.read_body{
"audienceId": "jn7a8w4q8m9k2p1x7c3b5v6n9h7s2d4f",
"audienceName": "Nordic Founders",
"filters": {
"filters": [
{
"field": "country",
"operator": "equals",
"value": "NO"
}
],
"logicalOperator": "and"
},
"count": 1284,
"createdAt": "2026-04-08T12:34:56.789Z",
"updatedAt": "2026-04-08T12:34:56.789Z"
}Authorizations
Send your Brew API key as Authorization: Bearer brew_xxx.
Headers
Optional idempotency key for safe retries. Reusing the same key with the same request body returns the original response for 24 hours.
1 - 100The brand this request acts on. REQUIRED for organization-scoped credentials (otherwise 400 BRAND_ID_REQUIRED — there is no default brand); list ids with GET /v1/brands. Brand-scoped credentials may omit it, and sending a different brand returns 403 BRAND_SCOPE_MISMATCH. A brand outside your organization returns 404 BRAND_NOT_FOUND.
1 - 64Body
1 - 200Filter clauses combined by logicalOperator. For specific addresses use { field: "email", operator: "in", value: ["a@x.com", ...] } — a list over 100 addresses is auto-converted into a stamped custom-field snapshot of the listed EXISTING contacts (addresses without a contact record are skipped; 10,000 max).
Show child attributes
Show child attributes
Response
Created.
1 - 641 - 200Show child attributes
Show child attributes
x >= 0pending, running, ready, failed Show child attributes
Show child attributes
Present when an email in [...] clause with more than 100 addresses was auto-converted into a stamped custom-field snapshot.
Show child attributes
Show child attributes
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