curl --request PATCH \
  --url https://api.teamfollowup.ai/api/agent-builder/agents/{id}/split-test/variants/{variantAgentId} \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "revision": 5,
  "name": "Warm intro"
}'

import requests

url = "https://api.teamfollowup.ai/api/agent-builder/agents/{id}/split-test/variants/{variantAgentId}"

payload = {
    "revision": 5,
    "name": "Warm intro"
}
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({revision: 5, name: 'Warm intro'})
};

fetch('https://api.teamfollowup.ai/api/agent-builder/agents/{id}/split-test/variants/{variantAgentId}', 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.teamfollowup.ai/api/agent-builder/agents/{id}/split-test/variants/{variantAgentId}",
  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([
    'revision' => 5,
    'name' => 'Warm intro'
  ]),
  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.teamfollowup.ai/api/agent-builder/agents/{id}/split-test/variants/{variantAgentId}"

	payload := strings.NewReader("{\n  \"revision\": 5,\n  \"name\": \"Warm intro\"\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://api.teamfollowup.ai/api/agent-builder/agents/{id}/split-test/variants/{variantAgentId}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"revision\": 5,\n  \"name\": \"Warm intro\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.teamfollowup.ai/api/agent-builder/agents/{id}/split-test/variants/{variantAgentId}")

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  \"revision\": 5,\n  \"name\": \"Warm intro\"\n}"

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

{
  "success": true,
  "splitTest": {
    "locationId": "loc_9f7a123",
    "campaignId": "campaign_speed_to_lead_123",
    "primaryAgentId": "agent_1ffdb9717444d0e77346838911",
    "status": "active",
    "revision": 6,
    "sync": {
      "status": "healthy",
      "failedAt": null
    },
    "variants": [
      {
        "agentId": "agent_1ffdb9717444d0e77346838911",
        "name": "Speed to Lead",
        "sequence": 1,
        "weight": 50,
        "status": "active",
        "addedAt": "2026-08-14T09:12:44.318Z",
        "removedAt": null,
        "isPrimary": true
      },
      {
        "agentId": "agent_7c4e1b28f0a94d6591cc2fd340",
        "name": "Warm intro",
        "sequence": 2,
        "weight": 50,
        "status": "active",
        "addedAt": "2026-08-20T16:04:02.771Z",
        "removedAt": null,
        "isPrimary": false,
        "customName": true
      }
    ]
  }
}

{
  "success": false,
  "error": "VALIDATION",
  "message": "Weights must include every active variant exactly once."
}

{
  "success": false,
  "error": "Unauthorized",
  "message": "Authentication required."
}

{
  "success": false,
  "error": "AccessDenied",
  "message": "You do not have access to this agent."
}

{
  "success": false,
  "error": "NOT_FOUND",
  "message": "This campaign does not have an Agent Split Test."
}

{
  "success": false,
  "error": "CONFLICT",
  "message": "Agent Split Test changed since it was loaded. Refresh and retry."
}

{
  "success": false,
  "error": "TooManyRequests",
  "message": "Too many requests, please try again later."
}

{
  "success": false,
  "error": "InternalError",
  "message": "Unexpected server error."
}

{
  "success": false,
  "error": "SYNC_FAILED",
  "message": "Could not update variant names. Retry."
}