Get User by ID

Returns details for a specific company user by their userId. Use this endpoint when you already know the user's identifier and want to look up or refresh a single user without paginating through the full list.

Rules:

The userId is the id field from GET /users/v1/users.
Returns 404 if the user does not belong to the authenticated company.

curl -X GET "https://api-sandbox.contasimples.com/users/v1/users/550e8400-e29b-41d4-a716-446655440000" \
  -H "Content-Type: application/json" \
  -H "Signature-Input: example_string" \
  -H "Signature: example_string" \
  -H "Authorization: Bearer YOUR_API_TOKEN"

import requests
import json

url = "https://api-sandbox.contasimples.com/users/v1/users/550e8400-e29b-41d4-a716-446655440000"
headers = {
  "Content-Type": "application/json",
  "Signature-Input": "example_string",
  "Signature": "example_string",
  "Authorization": "Bearer YOUR_API_TOKEN"
}

response = requests.get(url, headers=headers)
print(response.json())

const response = await fetch("https://api-sandbox.contasimples.com/users/v1/users/550e8400-e29b-41d4-a716-446655440000", {
  method: "GET",
  headers: {
  "Content-Type": "application/json",
  "Signature-Input": "example_string",
  "Signature": "example_string",
  "Authorization": "Bearer YOUR_API_TOKEN"
}
});

const data = await response.json();
console.log(data);

package main

import (
    "fmt"
    "net/http"
)

func main() {

    req, err := http.NewRequest("GET", "https://api-sandbox.contasimples.com/users/v1/users/550e8400-e29b-41d4-a716-446655440000", nil)
    if err != nil {
        panic(err)
    }

    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("Signature-Input", "example_string")
    req.Header.Set("Signature", "example_string")
    req.Header.Set("Authorization", "Bearer YOUR_API_TOKEN")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    fmt.Println("Response Status:", resp.Status)
}

require 'net/http'
require 'json'

uri = URI('https://api-sandbox.contasimples.com/users/v1/users/550e8400-e29b-41d4-a716-446655440000')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Get.new(uri)
request['Content-Type'] = 'application/json'
request['Signature-Input'] = 'example_string'
request['Signature'] = 'example_string'
request['Authorization'] = 'Bearer YOUR_API_TOKEN'

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

{
  "id": "550e8400-e29b-41d4-a716-446655440000",
  "email": "joao.silva@empresa.com.br",
  "name": "João Silva",
  "phone": "11999999999",
  "role": {
    "id": "8a3f1b2c-4e5d-6f7a-8b9c-0d1e2f3a4b5c",
    "name": "Accountant"
  },
  "active": true
}

{
  "error": "Bad Request",
  "message": "The request contains invalid parameters or malformed data",
  "code": 400,
  "details": [
    {
      "field": "email",
      "message": "Invalid email format"
    }
  ]
}

GET

/users/v1/users/{userId}

GET

Base URLstring

Target server for requests. Edit to use your own host.

Bearer Token

Bearer Tokenstring

Required

Bearer token from OAuth 2.0 client credentials. Format: Bearer TOKEN

path

userIdstring

Required

User ID (UUID v4) — use the id field value returned by GET /users/v1/users (e.g., 550e8400-e29b-41d4-a716-446655440000).

Format: uuid

header

Signature-Inputstring

What was signed and the signature parameters, in the RFC 9421 format. A credential with a public key must send it on every call, reads included, or the request is refused with 401. The signature covers the @method, @path, and @query components, and also content-digest when there is a body. created and alg are required, and created is valid for 300 seconds. The full format, with examples, is in Request Signing.

header

Signaturestring

The signature of the base defined by RFC 9421, in base64, between : and under the same label used in Signature-Input, for example sig=:SGVsbG8gd29ybGQ=:. It always goes together with Signature-Input.