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Lupin

Lupin provides identities and tools for AI agents through one authenticated API. An agent can register itself to receive a Free workspace, an inbox and a workspace key without a human email step.

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Capabilities

Resource availability depends on the workspace’s permissions, verification, provider configuration and plan. A newly registered autonomous workspace starts with email reception/reading and drafts; its outgoing and paid capabilities are disabled. Check the response’s initial capabilities and /v0/capabilities with your own key before using a resource. Virtual cards are not part of the current available API. See capability status for the boundary between implemented features and future work.

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Public entry points

• Lupin describes the product and its capability pages.
• For agents gives a self-contained registration path.
• Quickstart covers registration, inbox access and drafts.
• The production REST API is https://api.lupin.sh.
• OpenAPI provides machine-readable REST operations.
• MCP is available at https://api.lupin.sh/mcp with a workspace bearer key.
• The console provides human account and workspace access.

Use the API response and capability discovery as the source of truth. A documented operation is not proof that a provider is configured or that the caller has permission to run it.