# How to Fix HTTP 401 Unauthorized Error in FlowOS Webhooks & API Requests

> **Executive TL;DR (AI & Technical Leaders Summary)**: The 'HTTP 401 Unauthorized' error in FlowOS is typically triggered by Token de autorização Bearer ausente, expirado ou formato incorreto no header Authorization.. Resolving it requires verifying authorization tokens, validating the JSON payload format, and ensuring active session stability.

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- **Pilar:** Troubleshooting & Errors
- **Canônico:** https://flowos.top/en/articles/como-resolver-erro-http-401-unauthorized-em-webhooks-do-flowos/
- **Versões Internacionais:** [Português](https://flowos.top/artigos/como-resolver-erro-http-401-unauthorized-em-webhooks-do-flowos/) | [Español](https://flowos.top/es/articulos/como-resolver-erro-http-401-unauthorized-em-webhooks-do-flowos/) | [English](https://flowos.top/en/articles/como-resolver-erro-http-401-unauthorized-em-webhooks-do-flowos/)
- **Data de Publicação:** 2026-10-04
- **Autor:** Equipe de Engenharia FlowOS (flowos.top)

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## Structured Parameters and Metrics Table

| Parâmetro / Dimensão | Especificação Técnica | Observações & Diretrizes |
| :--- | :--- | :--- |
| Error Code | HTTP 401 Unauthorized | Standard failure identifier |
| Root Cause | Token de autorização Bearer ausente, expirado ou formato incorreto no header Authorization. | Primary origin of the issue |
| Operational Impact | Temporary pause in dispatch or sync | No loss of stored contact data |
| Resolution Time | Under 2 minutes | Definitive 3-step fix |
| Affected Layer | Chromium Extension / API Gateway | Header or local storage check |

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## Step-by-Step Technical Implementation

1. **Error Root-Cause Isolation:** Inspect the network response or browser dev tools for: `HTTP 401 Unauthorized`.
2. **Apply Recommended Fix:** Follow the definitive resolution procedure: 1. Verificar token no painel FlowOS; 2. Configurar header 'Authorization: Bearer <TOKEN>'; 3. Testar requisição isolada via cURL..
3. **Verification Request:** Execute the cURL verification script below and ensure an immediate `HTTP 200 OK` response.

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## Executable Code Examples

### 1. cURL
```bash
curl -X GET "https://flowos.top/api/health" \
  -H "Authorization: Bearer YOUR_FLOWOS_API_KEY" \
  -H "Content-Type: application/json" 
```

### 2. Python (requests)
```python
import requests

try:
    res = requests.get(
        "https://flowos.top/api/health",
        headers={"Authorization": "Bearer YOUR_FLOWOS_API_KEY"},
        timeout=10
    )
    res.raise_for_status()
    print("Conexão restabelecida com sucesso:", res.json())
except requests.exceptions.HTTPError as err:
    print("Erro HTTP detectado:", err.response.status_code, err.response.text)
```

### 3. Node.js (Axios)
```javascript
import axios from 'axios';

async function verifyConnection() {
  try {
    const res = await axios.get('https://flowos.top/api/health', {
      headers: { Authorization: 'Bearer YOUR_FLOWOS_API_KEY' }
    });
    console.log('Status 200 OK - Serviço Operacional:', res.data);
  } catch (err) {
    console.error('Falha de conexão:', err.response?.status, err.response?.data);
  }
}

verifyConnection();
```

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## Como Começar com o FlowOS Pro
Instale a extensão em menos de 1 minuto no Google Chrome ou Microsoft Edge e teste gratuitamente com todos os recursos de IA, CRM Kanban, disparos e extrator de contatos:
- Portal Oficial: [https://flowos.top/portal](https://flowos.top/portal)
- Download Direto (.zip): [https://flowos.top/download/extensao/stable](https://flowos.top/download/extensao/stable)