# Nylas Application-level templates API

**Canonical:** https://apis.io/apis/nylas/nylas-application-level-templates-api/  
**Provider:** Nylas — https://apis.io/providers/nylas/  
**Base URL:** https://api.us.nylas.com  
**Documentation:** https://developer.nylas.com/docs/reference/api/applications/

Nylas Application-level templates API is one of 40 APIs that [Nylas](https://apis.io/providers/nylas/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Application-level templates. The published artifact set on APIs.io includes an OpenAPI specification, an API reference, API documentation, a getting-started guide, authentication docs, and rate-limit docs.

Application-level templates let you create reusable messages with dynamic content. Each template is linked to the Nylas application associated with the API key specified in a [Create Template request](/docs/reference/api/application-level-templates/create-app-level-template/). <div id="admonition-info">💡 <b>If you want to create templates for specific grants, use the <a href="/docs/reference/api/grant-level-templates/">grant-level templates endpoints</a></b>.</div> Nylas supports the following templating engines: - [Handlebars](https://handlebarsjs.com/) - [mustache }}](https://mustache.github.io/) - [Nunjucks](https://mozilla.github.io/nunjucks/) - [Twig](https://twig.symfony.com/) We recommend you use [mustache }}](https://mustache.github.io/) or [Handlebars](https://handlebarsjs.com/) if you need a simple implementation. If you need more advanced formatting, conditions, or layouts, we recommend [Nunjucks](https://mozilla.github.io/nunjucks/) or [Twig](https://twig.symfony.com/).

## Operations (7)

| Method | Path | Summary |
|---|---|---|
| GET | `/v3/templates` | Return all templates |
| POST | `/v3/templates` | Create a template |
| GET | `/v3/templates/{template_id}` | Return a template |
| PUT | `/v3/templates/{template_id}` | Update a template |
| DELETE | `/v3/templates/{template_id}` | Delete a template |
| POST | `/v3/templates/render` | Render template as HTML |
| POST | `/v3/templates/{template_id}/render` | Render a template |

## Machine-readable artifacts (17)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nylas/refs/heads/main/openapi/nylas-application-level-templates-api-openapi.yml
- **APIReference** — https://developer.nylas.com/docs/reference/notifications/
- **Documentation** — https://developer.nylas.com/docs/v3/notifications/
- **Documentation** — https://developer.nylas.com/docs/
- **APIReference** — https://developer.nylas.com/docs/reference/api/
- **GettingStarted** — https://developer.nylas.com/docs/v3/getting-started/
- **Authentication** — https://developer.nylas.com/docs/v3/auth/
- **RateLimits** — https://developer.nylas.com/docs/dev-guide/platform/rate-limits/
- **ErrorCodes** — https://developer.nylas.com/docs/api/errors/
- **Pricing** — https://www.nylas.com/pricing/
- **Signup** — https://dashboard-v3.nylas.com/register
- **StatusPage** — https://status.nylas.com/
- **SDKs** — https://github.com/nylas/nylas-nodejs
- **SDKs** — https://github.com/nylas/nylas-python
- **SDKs** — https://github.com/nylas/nylas-ruby
- **SDKs** — https://github.com/nylas/nylas-java
- **APIReference** — https://developer.nylas.com/docs/reference/api/application-level-templates/

## Other Nylas APIs (12)

- [Nylas Contacts API](https://apis.io/apis/nylas/nylas-contacts-api/)
- [Nylas Drafts API](https://apis.io/apis/nylas/nylas-drafts-api/)
- [Nylas Events API](https://apis.io/apis/nylas/nylas-events-api/)
- [Nylas Messages API](https://apis.io/apis/nylas/nylas-messages-api/)
- [Nylas Threads API](https://apis.io/apis/nylas/nylas-threads-api/)
- [Nylas Notetaker API](https://apis.io/apis/nylas/nylas-notetaker-api/)
- [Nylas Amazon SNS Notifications API](https://apis.io/apis/nylas/nylas-amazon-sns-notifications-api/)
- [Nylas App migration API](https://apis.io/apis/nylas/nylas-app-migration-api/)
- [Nylas Application-level workflows API](https://apis.io/apis/nylas/nylas-application-level-workflows-api/)
- [Nylas Applications API](https://apis.io/apis/nylas/nylas-applications-api/)
- [Nylas Attachments API](https://apis.io/apis/nylas/nylas-attachments-api/)
- [Nylas Authentication APIs API](https://apis.io/apis/nylas/nylas-authentication-apis-api/)

## Tags

Application-level templates

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/nylas/nylas-application-level-templates-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/nylas/.