# Nylas Transactional send API

**Canonical:** https://apis.io/apis/nylas/nylas-transactional-send-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 Transactional send 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 Transactional send. 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.

Nylas' Transactional Send endpoint lets you send messages directly from an email domain that you've verified with Nylas. You can use this to send password reset emails, account verifications, or system notifications.

## Operations (1)

| Method | Path | Summary |
|---|---|---|
| POST | `/v3/domains/{domain_name}/messages/send` | Send a transactional email |

## Machine-readable artifacts (17)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nylas/refs/heads/main/openapi/nylas-transactional-send-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 templates API](https://apis.io/apis/nylas/nylas-application-level-templates-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/)

## Tags

Transactional send

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