Guides

For coding agents

Let Claude, Cursor or Copilot set up emitemail, with rules that keep it safe.

emitemail publishes its docs in a form coding agents read well.

/llms.txt is a short plain-text guide to the API.
Every page here has a Markdown version. Use Copy page or open /docs/md/<page> and paste it into your assistant.
/emit-skill.md is a skill file you can add to an agent so it knows how to use emitemail.

Prompt to try#

Read https://app.emitemail.com/llms.txt and add emitemail to this project to send order confirmation emails. Read the key from the EMIT_API_KEY environment variable. Use an Idempotency-Key for each email.

Rules worth giving your agent#

Only send to addresses the user gave you or that belong to the user's own customers. Never guess recipients.
Use a fresh Idempotency-Key per logical message and reuse it when retrying.
Do not retry 4xx errors other than 409. On 429, stop and tell the user the cap was reached.
Never print, log or commit the API key. Read it from the environment.
An API key belongs to one brand. Use the key of the brand the project belongs to, and do not reuse one project's key in another.