curl -X PATCH 'https://api.resend.com/templates/id' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0' \
  -H 'Content-Type: application/json' \
  -d '{
  "html": "<p>It works!</p>"
}'

# PATCH /templates/{id} (Resend API)
Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-10-20

> Update an existing template

Template edits must be published before they are usable for sending. See [Resend](https://resend.com/docs/api-reference/templates/update-template).

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

## cURL
curl -X PATCH 'https://api.resend.com/templates/id' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0' \
  -H 'Content-Type: application/json' \
  -d '{"html":"<p>It works!</p>"}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| id | path | string | Yes | The Template ID or alias. |
| name | body | string | No | The name of the template. |
| alias | body | string | No | The alias of the template. |
Other params: from, subject, reply_to, html, text, variables

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

---
Need an API key? Get one at https://resend.com/signup

PATCH

PATCH /templates/{id} — Resend API

Resend API

Update an existing template

Template edits must be published before they are usable for sending. See Resend.

Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

Agents: curl -H "Accept: text/markdown" this URL
→ 218 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.

cURL

curl -X PATCH 'https://api.resend.com/templates/id' \  -H "Authorization: Bearer $RESEND_API_KEY" \  -H 'User-Agent: my-app/1.0' \  -H 'Content-Type: application/json' \  -d '{  "html": "<p>It works!</p>"}'

Parameters

Name	In	Type	Required	Description
id	path	string	Yes	The Template ID or alias.
name	body	string	No	The name of the template.
alias	body	string	No	The alias of the template.
from	body	string	No	Sender email address. To include a friendly name, use the format "Your Name <[email protected]>".
subject	body	string	No	Email subject.
reply_to	body	string[]	No	Reply-to email addresses.
html	body	string	No	The HTML version of the template.
text	body	string	No	The plain text version of the template.
variables	body	object[]	No	Request body field variables.

Response 200 OK

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

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