curl -X POST 'https://api.resend.com/api-keys' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0' \
  -H 'Content-Type: application/json' \
  -d '{
  "name": "example-name",
  "permission": "full_access",
  "domain_id": "domain-id"
}'

# POST /api-keys (Resend API)
Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-10-20

> Create a new API key

## 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 POST 'https://api.resend.com/api-keys' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0' \
  -H 'Content-Type: application/json' \
  -d '{"name":"example-name","permission":"full_access","domain_id":"domain-id"}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| name | body | string | Yes | The API key name. |
| permission | body | string | No | The API key can have full access to Resend’s API or be on... |
| domain_id | body | string | No | Restrict an API key to send emails only from a specific d... |

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

---
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POST

POST /api-keys — Resend API

Resend API

Create a new API key

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
→ 208 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 POST 'https://api.resend.com/api-keys' \  -H "Authorization: Bearer $RESEND_API_KEY" \  -H 'User-Agent: my-app/1.0' \  -H 'Content-Type: application/json' \  -d '{  "name": "example-name",  "permission": "full_access",  "domain_id": "domain-id"}'

Parameters

Name	In	Type	Required	Description
name	body	string	Yes	The API key name.
permission	body	string	No	The API key can have full access to Resend’s API or be only restricted to send emails. * full_access - Can create, delete, get, and update any resource. * sending_access - Can only send emails.
domain_id	body	string	No	Restrict an API key to send emails only from a specific domain. Only used when the permission is sending_access.

Response 200 OK

{
  "id": "string",
  "token": "string"
}

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