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PATCH
/
v1
/
emails
/
{emailId}
Edit an email design
curl --request PATCH \
  --url https://brew.new/api/v1/emails/{emailId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "Tighten the headline and replace the CTA copy with \"Get started today\"."
}
'
import requests

url = "https://brew.new/api/v1/emails/{emailId}"

payload = { "prompt": "Tighten the headline and replace the CTA copy with \"Get started today\"." }
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}

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

print(response.text)
const options = {
method: 'PATCH',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
prompt: 'Tighten the headline and replace the CTA copy with "Get started today".'
})
};

fetch('https://brew.new/api/v1/emails/{emailId}', 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/emails/{emailId}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "PATCH",
CURLOPT_POSTFIELDS => json_encode([
'prompt' => 'Tighten the headline and replace the CTA copy with "Get started today".'
]),
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/emails/{emailId}"

payload := strings.NewReader("{\n \"prompt\": \"Tighten the headline and replace the CTA copy with \\\"Get started today\\\".\"\n}")

req, _ := http.NewRequest("PATCH", 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.patch("https://brew.new/api/v1/emails/{emailId}")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"prompt\": \"Tighten the headline and replace the CTA copy with \\\"Get started today\\\".\"\n}")
.asString();
require 'uri'
require 'net/http'

url = URI("https://brew.new/api/v1/emails/{emailId}")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"prompt\": \"Tighten the headline and replace the CTA copy with \\\"Get started today\\\".\"\n}"

response = http.request(request)
puts response.read_body
{
  "emailId": "eml_2SmZOWV3ZQ7W5x6g3m4p",
  "emailVersionId": "emv_2SmZOWV3ZQ7W5x6g3m4p_v1",
  "html": "<!DOCTYPE html><html><body>Welcome to Brew.</body></html>",
  "previewImage": "https://storage.example.com/emails/eml_2SmZOWV3ZQ7W5x6g3m4p.png"
}

Authorizations

Authorization
string
header
default:Bearer brew_your_api_key
required

Send your Brew API key as Authorization: Bearer brew_xxx.

Path Parameters

emailId
string
required

Design id returned by POST /v1/emails and listed by GET /v1/emails.

Required string length: 1 - 64
Example:

"eml_2SmZOWV3ZQ7W5x6g3m4p"

Body

application/json

A natural-language prompt edit, with an optional emailVersionId source pin and optional contentUrls. Identity lives on the path.

prompt
string
required
Minimum string length: 1
emailVersionId
string
Required string length: 1 - 64
contentUrls
string<uri>[]
Maximum array length: 8

Response

Updated design (a new latest version row was written) or a text response if the agent returned prose instead of a design. USAGE-metered: the agent’s actual token usage is charged (no fixed price).

emailId
string
required
Minimum string length: 1
emailVersionId
string
required
Minimum string length: 1
html
string
required
previewImage
string<uri>