---
title: "Update TCP Monitor"
description: "Updates a TCP monitor."
---

`PATCH /api/tcp-monitors/:tcpMonitorPublicId`

## Authentication

Requires a valid session.

- Header: `Authorization: Bearer <token>`

## Parameters

- `tcpMonitorPublicId` (Path, required): TCP monitor public UUID.

## Request Body

All fields are optional.

```json
{
 "name": "Redis Primary",
 "hostname": "redis.deinkunde.com",
 "port": 6379,
 "status": "paused",
 "checkInterval": 60,
 "timeoutSeconds": 30,
 "allowedCheckCountryCodes": ["de", "es"],
 "config": {
  "expectBanner": "+PONG"
 }
}
```

### Notes

- `status` accepts `active`, `maintenance`, `disabled`, `paused`, `inactive`.
 - `paused` and `inactive` are normalized to `disabled`.
- `port`, if provided, must be an integer between `1` and `65535`.
- `allowedCheckCountryCodes` is normalized to uppercase ISO codes (e.g. `DE`, `US`). Empty lists become `null`.
- `config` only accepts the `expectBanner` key (merged into the existing stored config). There is no `sshConfig`-style alias and no credential fields. TCP monitors carry no credentials. If omitted, the stored config is not changed.
- Users with `readonly` role can only change `status`.

## cURL

```bash
curl -X PATCH "https://YOUR_DOMAIN/api/tcp-monitors/44444444-4444-4444-8444-444444444444" \
 -H "Authorization: Bearer $TOKEN" \
 -H "Content-Type: application/json" \
 -d '{
  "status": "disabled"
 }'
```

## Response

```json
{
 "id": 300,
 "publicId": "44444444-4444-4444-8444-444444444444",
 "organizationId": 1,
 "customerId": 10,
 "name": "Redis Primary",
 "hostname": "redis.deinkunde.com",
 "port": 6379,
 "status": "disabled",
 "managementType": "managed",
 "checkInterval": 60,
 "timeoutSeconds": 30,
 "notificationEmail": null,
 "notificationPhoneNumber": null,
 "lastCheckedAt": "2026-02-26T12:00:00.000Z",
 "createdAt": "2026-02-26T12:00:00.000Z",
 "updatedAt": "2026-02-26T12:01:00.000Z",
 "config": {
  "expectBanner": "+PONG"
 }
}
```

## Errors

- `400` TCP monitor ID is required / invalid fields (e.g. `invalidPort`, `invalidConfig`, `invalidStatus`)
- `401` Unauthorized
- `403` Forbidden (readonly users may only update `status`; global supporters cannot update)
- `404` Not found