Update Agent (Identity)

curl --request POST \
  --url https://api.velt.dev/v2/agents/update \
  --header 'Content-Type: application/json' \
  --header 'x-velt-api-key: <x-velt-api-key>' \
  --header 'x-velt-auth-token: <x-velt-auth-token>' \
  --data '
{
  "data": {
    "agentId": "<string>",
    "name": "<string>",
    "description": "<string>",
    "enabled": true
  }
}
'

import requests

url = "https://api.velt.dev/v2/agents/update"

payload = { "data": {
        "agentId": "<string>",
        "name": "<string>",
        "description": "<string>",
        "enabled": True
    } }
headers = {
    "x-velt-api-key": "<x-velt-api-key>",
    "x-velt-auth-token": "<x-velt-auth-token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-velt-api-key': '<x-velt-api-key>',
    'x-velt-auth-token': '<x-velt-auth-token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    data: {agentId: '<string>', name: '<string>', description: '<string>', enabled: true}
  })
};

fetch('https://api.velt.dev/v2/agents/update', 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.velt.dev/v2/agents/update",
  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([
    'data' => [
        'agentId' => '<string>',
        'name' => '<string>',
        'description' => '<string>',
        'enabled' => true
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-velt-api-key: <x-velt-api-key>",
    "x-velt-auth-token: <x-velt-auth-token>"
  ],
]);

$response = curl_exec($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.velt.dev/v2/agents/update"

	payload := strings.NewReader("{\n  \"data\": {\n    \"agentId\": \"<string>\",\n    \"name\": \"<string>\",\n    \"description\": \"<string>\",\n    \"enabled\": true\n  }\n}")

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

	req.Header.Add("x-velt-api-key", "<x-velt-api-key>")
	req.Header.Add("x-velt-auth-token", "<x-velt-auth-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://api.velt.dev/v2/agents/update")
  .header("x-velt-api-key", "<x-velt-api-key>")
  .header("x-velt-auth-token", "<x-velt-auth-token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"agentId\": \"<string>\",\n    \"name\": \"<string>\",\n    \"description\": \"<string>\",\n    \"enabled\": true\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.velt.dev/v2/agents/update")

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

request = Net::HTTP::Post.new(url)
request["x-velt-api-key"] = '<x-velt-api-key>'
request["x-velt-auth-token"] = '<x-velt-auth-token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": {\n    \"agentId\": \"<string>\",\n    \"name\": \"<string>\",\n    \"description\": \"<string>\",\n    \"enabled\": true\n  }\n}"

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

{
  "result": {
    "status": "success",
    "message": "Agent updated successfully",
    "data": {
      "agentId": "abc123def456"
    }
  }
}

POST

agents

update

Update Agent (Identity)

curl --request POST \
  --url https://api.velt.dev/v2/agents/update \
  --header 'Content-Type: application/json' \
  --header 'x-velt-api-key: <x-velt-api-key>' \
  --header 'x-velt-auth-token: <x-velt-auth-token>' \
  --data '
{
  "data": {
    "agentId": "<string>",
    "name": "<string>",
    "description": "<string>",
    "enabled": true
  }
}
'

import requests

url = "https://api.velt.dev/v2/agents/update"

payload = { "data": {
        "agentId": "<string>",
        "name": "<string>",
        "description": "<string>",
        "enabled": True
    } }
headers = {
    "x-velt-api-key": "<x-velt-api-key>",
    "x-velt-auth-token": "<x-velt-auth-token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-velt-api-key': '<x-velt-api-key>',
    'x-velt-auth-token': '<x-velt-auth-token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    data: {agentId: '<string>', name: '<string>', description: '<string>', enabled: true}
  })
};

fetch('https://api.velt.dev/v2/agents/update', 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.velt.dev/v2/agents/update",
  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([
    'data' => [
        'agentId' => '<string>',
        'name' => '<string>',
        'description' => '<string>',
        'enabled' => true
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-velt-api-key: <x-velt-api-key>",
    "x-velt-auth-token: <x-velt-auth-token>"
  ],
]);

$response = curl_exec($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.velt.dev/v2/agents/update"

	payload := strings.NewReader("{\n  \"data\": {\n    \"agentId\": \"<string>\",\n    \"name\": \"<string>\",\n    \"description\": \"<string>\",\n    \"enabled\": true\n  }\n}")

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

	req.Header.Add("x-velt-api-key", "<x-velt-api-key>")
	req.Header.Add("x-velt-auth-token", "<x-velt-auth-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://api.velt.dev/v2/agents/update")
  .header("x-velt-api-key", "<x-velt-api-key>")
  .header("x-velt-auth-token", "<x-velt-auth-token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"agentId\": \"<string>\",\n    \"name\": \"<string>\",\n    \"description\": \"<string>\",\n    \"enabled\": true\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.velt.dev/v2/agents/update")

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

request = Net::HTTP::Post.new(url)
request["x-velt-api-key"] = '<x-velt-api-key>'
request["x-velt-auth-token"] = '<x-velt-auth-token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": {\n    \"agentId\": \"<string>\",\n    \"name\": \"<string>\",\n    \"description\": \"<string>\",\n    \"enabled\": true\n  }\n}"

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

{
  "result": {
    "status": "success",
    "message": "Agent updated successfully",
    "data": {
      "agentId": "abc123def456"
    }
  }
}

Use this API to update identity fields on the root agent document. No new version is created. Works for both custom and built-in agents, though built-in agents only support updating enabled. For behavioral changes (instructions, context gathering, execution, post-processing, scope), use Update Agent Version instead, which creates a new version.

Endpoint

POST https://api.velt.dev/v2/agents/update

Headers

string

required

Your API key.

string

required

Your Auth Token.

Body

Params

object

required

Show properties

string

required

Min 1 char. Agent ID to update (custom or built-in).

string

Min 1 char. Agent display name. Not supported for built-in agents.

string

Human-readable description. Not supported for built-in agents.

boolean

Whether the agent is active.

Provide at least one of name, description, or enabled. This is not schema-enforced — a request without any of them succeeds as a no-op for custom agents, and returns INVALID_ARGUMENT for built-in agents (which require enabled).

Example Requests

1. Rename an agent

{
  "data": {
    "agentId": "abc123def456",
    "name": "Updated Brand Checker",
    "description": "Now also checks footer typography"
  }
}

2. Disable an agent

{
  "data": {
    "agentId": "abc123def456",
    "enabled": false
  }
}

3. Enable a built-in agent

{
  "data": {
    "agentId": "spell-check",
    "enabled": true
  }
}

Response

Success Response

{
  "result": {
    "status": "success",
    "message": "Agent updated successfully",
    "data": {
      "agentId": "abc123def456"
    }
  }
}

Field	Type	Description
`data.agentId`	string	The ID of the updated agent

Failure Response

{
  "error": {
    "message": "ERROR_MESSAGE",
    "status": "INVALID_ARGUMENT"
  }
}

Errors:

INVALID_ARGUMENT: missing agentId, empty name, or updating a built-in agent without the enabled field. Built-in agents support enabled only, and a name or description sent alongside it is silently ignored.
NOT_FOUND: the workspace store database could not be resolved.
INTERNAL: the agent does not exist.

Updating an agent that does not exist surfaces as INTERNAL, not NOT_FOUND. Check existence with Get Agent if you need to distinguish a missing agent from a genuine server error.This endpoint also ignores fields it does not own. Behavioral fields such as instructions or execution sent here are silently dropped and the call still returns 200; use Update Agent Version for those.

{
  "result": {
    "status": "success",
    "message": "Agent updated successfully",
    "data": {
      "agentId": "abc123def456"
    }
  }
}

⌘I

REST APIs

SDK

Update Agent (Identity)

Endpoint

Headers

Body

Params

Example Requests

1. Rename an agent

2. Disable an agent

3. Enable a built-in agent

Response

Success Response

Failure Response

​Endpoint

​Headers

​Body

​Params

​Example Requests

​1. Rename an agent

​2. Disable an agent

​3. Enable a built-in agent

​Response

​Success Response

​Failure Response

Endpoint

Headers

Body

Params

Example Requests

1. Rename an agent

2. Disable an agent

3. Enable a built-in agent

Response

Success Response

Failure Response