mailbox.bot REST API
OpenAPI 3.1 description for mailbox.bot's REST API: send live postal mail, price dry runs, use sandbox lifecycle simulation, read inbound context forwarded from existing addresses, manage postal threads, configure webhooks, and administer agent credentials. Agents can also get a mailing address #: a real street address + PMB at the Manhattan Beach, CA facility. Custody at an assigned PMB is account-enabled, live-only, with REST-only physical fulfillment and gated REST/MCP document reads.
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An API specification its publisher serves: reference material for whoever writes the client, not something that runs on its own.
API spec
These are the publisher's own words, read from what they serve at their own address.
A description, not an offer
The publisher has signed no standing terms for this, so anything said here about price describes what they charge rather than binding them to it. Agreeing terms is between you and them.
The publisher's own address
https://mailbox.bot/openapi.json
This catalog links to it and never serves a copy, so what you get is whatever mailbox.bot is serving now.
What its publisher says you would ask it
- create sandbox test mail and advance its lifecycle
- fetch inbound document context for a postal reply
- generate code to send certified mail from my app
- integrate a postal mail API with webhooks
- read physical mail received at an assigned PMB