Open Envelope

Envelope is a design tool for AI agent teams, paired with an open specification for describing them. Users lay out roles, tools and reporting lines on a visual canvas, then export the team as a JSON definition. The definition format covers agent structure, workspace documents, adapters, variables, secrets, access policies and escalation paths. The specification is published as a versioned open schema at schema.openenvelope.org and is listed on SchemaStore, so VS Code, JetBrains and other editors validate envelope JSON files without configuration. The vendor states that the marketplace, billing and deployment infrastructure remain proprietary. The product suits product managers and tech leads who design agents and hand the result to engineers or an IT team. Features include a schema validator, read only share links, an MCP server, a REST API on paid plans, version history and GitHub publishing for committing specs to a repository. The Free plan costs $0 and allows five saved agent designs with JSON export. Pro is listed at $9 per month and Team at $39 per month for up to 10 seats with comments and GitHub publishing, and both are shown as free during the beta. Enterprise pricing is available on request and adds private cloud deployment, SAML SSO and a signed audit trail per export. The vendor states that JSON export is free on every plan.