---
title: "Let's Encrypt: Order a certificate"
method: POST
path: "/{account}/domains/{domain}/certificates/letsencrypt"
tags: ["domain certificates"]
---

# Let's Encrypt: Order a certificate

`POST /{account}/domains/{domain}/certificates/letsencrypt`

Orders a [Let's Encrypt](https://dnsimple.com/letsencrypt) certificate with DNSimple.

## Path parameters

- `account` integer, required
- `domain` string, required

## Request body

- object
  - `auto_renew` boolean — Enable the auto-renewal of the certificate
  - `name` string — The certificate name
  - `alternate_names` string[] — The certificate alternate names
  - `signature_algorithm` string — Optional string to determine the signature algorithm to be used. Either `ECDSA` or `RSA`

## Response `201`

Successfully created the certificate purchase order.

- object
  - `data` LetsencryptCertificatePurchase, required
    - `id` integer, required
    - `certificate_id` integer, required
    - `state` 'new' | 'purchased' | 'configured' | 'submitted' | 'issued' | 'rejected' | 'refunded' | 'cancelled' | 'requesting' | 'failed', required
    - `auto_renew` boolean, required
    - `created_at` string, date-time, required — A date-time value, representing when the entry was created, formatted as ISO 8601.
    - `updated_at` string, date-time, required — A date-time value, representing when the entry was last updated, formatted as ISO 8601.

## Other responses

- `404` — The requested resource doesn't exist.

## Changes

- **2025-07-11** (v2) `06780be0ef17` — 8 info
  - the response property `data` became required for the status `201`
  - the response property `data/auto_renew` became required for the status `201`
  - the response property `data/certificate_id` became required for the status `201`
  - the response property `data/created_at` became required for the status `201`
  - …4 more
- **2023-07-18** (v2) `c8591dcf8c29` — 8 breaking
  - the response property `data` became optional for the status `201`
  - the response property `data/auto_renew` became optional for the status `201`
  - the response property `data/certificate_id` became optional for the status `201`
  - the response property `data/created_at` became optional for the status `201`
  - …4 more

[Change history](https://skmtc.dev/dnsimple/apis/dnsimple-api/changes/:account/domains/:domain/certificates/letsencrypt/post.md)

---

[API](https://skmtc.dev/dnsimple/apis/dnsimple-api.md) · [All operations](https://skmtc.dev/dnsimple/apis/dnsimple-api/llms.txt) · [OpenAPI document](https://skmtc.dev/dnsimple/apis/dnsimple-api/revisions/faec8b49cc03?raw)