curl --request PATCH \
  --url https://api.attio.com/v2/{target}/{identifier}/attributes/{attribute} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "data": {
    "title": "Your Attribute",
    "description": "Lorem ipsum",
    "api_slug": "my-attribute",
    "is_required": true,
    "is_unique": true,
    "default_value": {
      "type": "static",
      "template": [
        {
          "value": 5
        }
      ]
    },
    "config": {},
    "is_archived": false
  }
}
'

import requests

url = "https://api.attio.com/v2/{target}/{identifier}/attributes/{attribute}"

payload = { "data": {
        "title": "Your Attribute",
        "description": "Lorem ipsum",
        "api_slug": "my-attribute",
        "is_required": True,
        "is_unique": True,
        "default_value": {
            "type": "static",
            "template": [{ "value": 5 }]
        },
        "config": {},
        "is_archived": False
    } }
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({
    data: {
      title: 'Your Attribute',
      description: 'Lorem ipsum',
      api_slug: 'my-attribute',
      is_required: true,
      is_unique: true,
      default_value: {type: 'static', template: [{value: 5}]},
      config: {},
      is_archived: false
    }
  })
};

fetch('https://api.attio.com/v2/{target}/{identifier}/attributes/{attribute}', 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.attio.com/v2/{target}/{identifier}/attributes/{attribute}",
  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([
    'data' => [
        'title' => 'Your Attribute',
        'description' => 'Lorem ipsum',
        'api_slug' => 'my-attribute',
        'is_required' => true,
        'is_unique' => true,
        'default_value' => [
                'type' => 'static',
                'template' => [
                                [
                                                                'value' => 5
                                ]
                ]
        ],
        'config' => [
                
        ],
        'is_archived' => false
    ]
  ]),
  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.attio.com/v2/{target}/{identifier}/attributes/{attribute}"

	payload := strings.NewReader("{\n  \"data\": {\n    \"title\": \"Your Attribute\",\n    \"description\": \"Lorem ipsum\",\n    \"api_slug\": \"my-attribute\",\n    \"is_required\": true,\n    \"is_unique\": true,\n    \"default_value\": {\n      \"type\": \"static\",\n      \"template\": [\n        {\n          \"value\": 5\n        }\n      ]\n    },\n    \"config\": {},\n    \"is_archived\": false\n  }\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.attio.com/v2/{target}/{identifier}/attributes/{attribute}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"title\": \"Your Attribute\",\n    \"description\": \"Lorem ipsum\",\n    \"api_slug\": \"my-attribute\",\n    \"is_required\": true,\n    \"is_unique\": true,\n    \"default_value\": {\n      \"type\": \"static\",\n      \"template\": [\n        {\n          \"value\": 5\n        }\n      ]\n    },\n    \"config\": {},\n    \"is_archived\": false\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.attio.com/v2/{target}/{identifier}/attributes/{attribute}")

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  \"data\": {\n    \"title\": \"Your Attribute\",\n    \"description\": \"Lorem ipsum\",\n    \"api_slug\": \"my-attribute\",\n    \"is_required\": true,\n    \"is_unique\": true,\n    \"default_value\": {\n      \"type\": \"static\",\n      \"template\": [\n        {\n          \"value\": 5\n        }\n      ]\n    },\n    \"config\": {},\n    \"is_archived\": false\n  }\n}"

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

{
  "data": {
    "id": {
      "workspace_id": "14beef7a-99f7-4534-a87e-70b564330a4c",
      "object_id": "97052eb9-e65e-443f-a297-f2d9a4a7f795",
      "attribute_id": "41252299-f8c7-4b5e-99c9-4ff8321d2f96"
    },
    "title": "Company",
    "description": "A company attribute",
    "api_slug": "company",
    "type": "record-reference",
    "is_system_attribute": false,
    "is_writable": true,
    "is_required": false,
    "is_unique": false,
    "is_multiselect": false,
    "is_default_value_enabled": false,
    "is_archived": false,
    "default_value": null,
    "relationship": {
      "id": {
        "workspace_id": "14beef7a-99f7-4534-a87e-70b564330a4c",
        "object_id": "97052eb9-e65e-443f-a297-f2d9a4a7f795",
        "attribute_id": "41252299-f8c7-4b5e-99c9-4ff8321d2f96"
      },
      "object_slug": "companies",
      "title": "Team members",
      "api_slug": "team_members",
      "is_multiselect": true
    },
    "created_at": "2021-11-21T13:22:49.061Z",
    "config": {
      "currency": {
        "default_currency_code": null,
        "display_type": null
      },
      "record_reference": {
        "allowed_object_ids": [
          "companies"
        ]
      }
    }
  }
}

{
  "status_code": 400,
  "type": "invalid_request_error",
  "code": "system_edit_unauthorized",
  "message": "Cannot update a System attribute."
}

{
  "status_code": 404,
  "type": "invalid_request_error",
  "code": "not_found",
  "message": "Attribute with slug/ID \"my-attribute\" not found."
}