# PulseSend

> Transactional email API. Send OTPs, receipts and notifications with one HTTP call.

- [Introduction](https://docs.pulse-send.jiordiviera.me/index.md): Transactional email over HTTP. One call to send an OTP, a receipt or a notification, and a webhook when it lands.
- [Quickstart](https://docs.pulse-send.jiordiviera.me/quickstart.md): Send your first email with a test key, then go live.
- [Authentication](https://docs.pulse-send.jiordiviera.me/authentication.md): API keys, test and live modes, and scopes.
- [Verify a domain](https://docs.pulse-send.jiordiviera.me/guides/domains.md): Publish DKIM, SPF and DMARC records so you can send from your own address.
- [Send emails](https://docs.pulse-send.jiordiviera.me/guides/sending.md): Recipients, content, tags and what happens after the 202.
- [Idempotency](https://docs.pulse-send.jiordiviera.me/guides/idempotency.md): Retry a send after a timeout without emailing anyone twice.
- [Webhooks](https://docs.pulse-send.jiordiviera.me/guides/webhooks.md): Get a signed HTTP call each time an email changes status.
- [Credits](https://docs.pulse-send.jiordiviera.me/guides/credits.md): What a send costs, the free allowance and top-ups.
- [Limits](https://docs.pulse-send.jiordiviera.me/guides/limits.md): Rate limits and size limits of the API.
- [API reference](https://docs.pulse-send.jiordiviera.me/api-reference/introduction.md): Base URL, authentication, formats and pagination.
- [Errors](https://docs.pulse-send.jiordiviera.me/errors.md): One error format, a stable code for each case.
- [Send an email](https://docs.pulse-send.jiordiviera.me/api-reference/emails/send-an-email.md): Queues one email and returns right away with `202`. Delivery happens in the background: listen to webhooks or poll the email to follow its status. Live keys charge one credit per recipient; test keys never deliver and cost nothing.
- [Retrieve an email](https://docs.pulse-send.jiordiviera.me/api-reference/emails/retrieve-an-email.md): Returns one email with its current status.
- [List emails](https://docs.pulse-send.jiordiviera.me/api-reference/emails/list-emails.md): Returns your emails, newest first, with cursor pagination. Pass `next_cursor` from one page as `cursor` to get the next.

## OpenAPI Specs

- [openapi](/openapi.json)


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