Create or update the webhook endpoint

const options = {
  method: 'PATCH',
  headers: {'api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    url: 'https://partner.example.com/webhooks/melio',
    description: 'Production endpoint',
    events: ['api.entity.created', 'api.account.updated']
  })
};

fetch('https://api.melio.com/v2/webhook', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.melio.com/v2/webhook"

payload = {
    "url": "https://partner.example.com/webhooks/melio",
    "description": "Production endpoint",
    "events": ["api.entity.created", "api.account.updated"]
}
headers = {
    "api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

curl --request PATCH \
  --url https://api.melio.com/v2/webhook \
  --header 'Content-Type: application/json' \
  --header 'api-key: <api-key>' \
  --data '
{
  "url": "https://partner.example.com/webhooks/melio",
  "description": "Production endpoint",
  "events": [
    "api.entity.created",
    "api.account.updated"
  ]
}
'

HttpResponse<String> response = Unirest.patch("https://api.melio.com/v2/webhook")
  .header("api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"url\": \"https://partner.example.com/webhooks/melio\",\n  \"description\": \"Production endpoint\",\n  \"events\": [\n    \"api.entity.created\",\n    \"api.account.updated\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.melio.com/v2/webhook")

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

request = Net::HTTP::Patch.new(url)
request["api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"url\": \"https://partner.example.com/webhooks/melio\",\n  \"description\": \"Production endpoint\",\n  \"events\": [\n    \"api.entity.created\",\n    \"api.account.updated\"\n  ]\n}"

response = http.request(request)
puts response.read_body

package main

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

func main() {

	url := "https://api.melio.com/v2/webhook"

	payload := strings.NewReader("{\n  \"url\": \"https://partner.example.com/webhooks/melio\",\n  \"description\": \"Production endpoint\",\n  \"events\": [\n    \"api.entity.created\",\n    \"api.account.updated\"\n  ]\n}")

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

	req.Header.Add("api-key", "<api-key>")
	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))

}

{
  "url": "https://partner.example.com/webhooks/melio",
  "description": "Production endpoint",
  "events": [
    "api.entity.created",
    "api.account.updated"
  ],
  "isActive": true,
  "createdAt": "2026-07-08T15:00:00Z",
  "updatedAt": "2026-07-08T15:00:00Z"
}

{
  "error": {
    "message": "<string>",
    "details": {}
  }
}

{
  "error": {
    "message": "<string>",
    "details": {}
  }
}