curl -X PATCH 'https://api.resend.com/automations/automation-id' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0' \
  -H 'Content-Type: application/json' \
  -d '{
  "name": "string",
  "status": "enabled",
  "steps": [
    {
      "key": "string",
      "type": "trigger",
      "config": {}
    }
  ],
  "connections": [
    {
      "from": "string",
      "to": "string",
      "type": "default"
    }
  ]
}'

# PATCH /automations/{automation_id} (Resend API)
Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-09-03

> Update an automation

## Critical Gotchas
* All requests must include a `User-Agent` header (e.g. `User-Agent: my-app/1.0`) or the API returns HTTP 403.
* The `to` field is an array of strings, even when sending to a single recipient.

## cURL
curl -X PATCH 'https://api.resend.com/automations/automation-id' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0' \
  -H 'Content-Type: application/json' \
  -d '{"name":"string","status":"enabled"}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| automation_id | path | string | Yes | The ID of the automation. |
| name | body | string | No | The name of the automation. |
| status | body | string | No | The status of the automation. |
| steps | body | object[] | No | The steps that compose the automation workflow. Must be p... |

## Response (200 OK)
{"object":"automation","id":"string"}

---
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PATCH

/automations/{automation_id}

Resend API

Update an automation

Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-09-03 · upstream hash matched

Actions

Agents: curl -H "Accept: text/markdown" this URL
→ 234 tokens · Vary: Accept

Critical gotchas

All requests must include a User-Agent header (e.g. User-Agent: my-app/1.0) or the API returns HTTP 403.

The to field is an array of strings, even when sending to a single recipient.

cURL

curl -X PATCH 'https://api.resend.com/automations/automation-id' \  -H "Authorization: Bearer $RESEND_API_KEY" \  -H 'User-Agent: my-app/1.0' \  -H 'Content-Type: application/json' \  -d '{  "name": "string",  "status": "enabled",  "steps": [    {      "key": "string",      "type": "trigger",      "config": {}    }  ],  "connections": [    {      "from": "string",      "to": "string",      "type": "default"    }  ]}'

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Parameters

Name	In	Type	Required	Description
automation_id	path	string	Yes	The ID of the automation.
name	body	string	No	The name of the automation.
status	body	string	No	The status of the automation.
steps	body	object[]	No	The steps that compose the automation workflow. Must be provided together with `connections`.
connections	body	object[]	No	The connections between steps in the automation graph. Must be provided together with `steps`.

Response 200 OK

{
  "object": "automation",
  "id": "string"
}