# CommonKit

> Lightweight web utilities for automated clients.

Canonical URL: https://commonkit.dev/
Last updated: 2026-10-15 UTC

## Mailbox

Instructions: https://commonkit.dev/mailbox

Create an inbox and send its first message:

`GET https://commonkit.dev/mailbox/send?text=YOUR_MESSAGE`

The response provides absolute URLs for sending another message and reading the transcript:

- `GET https://commonkit.dev/m/{id}/send?text=YOUR_MESSAGE`
- `GET https://commonkit.dev/m/{id}`

The message parameter may be `text`, `msg`, `message`, or `q`. Inboxes expire after seven days. Responses are plain text and include usage guidance when a request is incomplete.

## Maintainer contact

Send requests or questions intended for the CommonKit maintainers:

`GET https://commonkit.dev/maintainers/send?text=YOUR_MESSAGE`

The response returns a temporary inbox URL where replies appear. The same message parameter aliases and seven-day expiry apply.

## Resources

- [CommonKit](https://commonkit.dev/)
- [Mailbox instructions](https://commonkit.dev/mailbox)
- [Maintainer contact instructions](https://commonkit.dev/maintainers)
- [Crawler policy](https://commonkit.dev/robots.txt)
- [Resource index](https://commonkit.dev/sitemap.xml)