# Praecise Inbox Email for people, agents and machines. A person approves an access key for named mailboxes and permissions; software then reads, searches, files and sends mail through REST, MCP or A2A. Every call is recorded where the mailbox's holders can see it. Status: available. Read on 2026-11-15 from the product's live documents. - api: https://email.inbox.praecise.com/api - mcp: https://email.inbox.praecise.com/mcp - keys begin: pik_ - keys are made by a signed-in person at: https://email.inbox.praecise.com/connect - test mode: no - [Reference](https://platform.inbox.praecise.com/reference.md): 9 operations in 2 groups - [OpenAPI document](https://email.inbox.praecise.com/api/openapi.json): served by the product - [Agent endpoint (MCP)](https://email.inbox.praecise.com/mcp): 10 tools, listed at https://platform.inbox.praecise.com/agents.md - [Praecise Inbox's own llms.txt](https://email.inbox.praecise.com/llms.txt)