# Programmable Inbox > The open-source, receive-first secondary inbox for developers and AI agents. Spin up a real email address in seconds, then read, filter, extract, and automate every message it receives — via UI, REST API, MCP, or webhook. Self-host it or use the managed cloud. ## What it does - Create a persistent, addressable inbox in seconds (e.g. `you@mail.programmableinbox.com`) instead of wiring up a mail server. - Every message is parsed, categorized (OTP, promo, updates, alerts), and mined for OTP codes, magic links, and other useful data automatically. - Query and manage the inbox from a UI, a full REST API, or an MCP server — so an AI agent can create addresses, read and reply to mail, and pull extracted codes/links through tool calls instead of custom email plumbing. - Automate on arrival: forward matching messages or fire a webhook the moment they land. - Open source (AGPL v3) and self-hostable, or run on the managed SaaS. ## Docs - [Documentation](https://docs.programmableinbox.com/): Full guides and API reference for creating inboxes, reading/extracting messages, and wiring up webhooks. - [GitHub](https://github.com/roshansingh/programmableinbox): Source code, issues, and self-hosting instructions (AGPL v3). ## Pricing - [Pricing](https://programmableinbox.com/pricing): Open Source tier is free forever (unlimited inboxes/messages, full REST API, webhooks, self-hosted). SaaS tier is usage-based, in early access, and adds managed hosting, uptime SLA, and priority support. ## Optional - [Homepage](https://programmableinbox.com/): Full product overview, feature breakdown, and comparison against other inbox/email tools.