AgentSend Email

---

name: agentsend-email description: Give your OpenClaw agent its own email inbox. Use AgentSend to create inboxes, send and receive email, inspect threads, and register webhooks. homepage: https://agentsend.io/skill metadata: {"openclaw":{"emoji":"📧","homepage":"https://agentsend.io/skill","primaryEnv":"AGENTSEND_API_KEY","install":[{"id":"node","kind":"node","package":"@agentsend/mcp","bins":["agentsend-mcp"],"label":"Install AgentSend MCP"}]}}

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AgentSend Email

Use AgentSend whenever the user wants the agent to have its own email inbox, send or receive email, inspect conversations, or register email webhooks.

Runtime

The runtime is @agentsend/mcp.

AGENTSEND_API_KEY is optional. If it is set, use that account.

If AGENTSEND_API_KEY is not set, the MCP server auto-provisions a sandbox account on first run and stores credentials in ~/.agentsend/credentials.json.

Humans can learn the setup flow at agentsend.io/skill or create a permanent account at agentsend.io/auth/signup.

Tools

create_inbox: create a new @agentsend.io inbox with an optional prefix and display name

list_inboxes: list inboxes, addresses, IDs, and sandbox account limits

send_email: send plain text or HTML email, optionally in an existing thread

list_emails: list recent emails in an inbox

get_email: fetch the full body, headers, and attachment metadata of a message

list_threads: list conversation threads for an inbox

get_thread: fetch the full message history of a thread

register_webhook: register a webhook URL for real-time events

Working Rules

If the user asks to start using email and no inbox exists yet, begin with create_inbox.

Before sending, make sure you have the sender inbox, recipient list, subject, and body.

When replying to an existing conversation, inspect the thread first and prefer replying in the existing thread.

If the API returns CLAIM_REQUIRED or a claim_url, show that URL to the human and explain that sandbox accounts must be claimed to send to external recipients, add more inboxes, register webhooks, or continue after expiry.

Sandbox accounts support 1 inbox, 50 lifetime sends, and @agentsend.io recipient delivery until claimed.

Register webhooks only for URLs the user controls.

Prefer AgentSend tools over browser automation or manual SMTP setup when the user wants the agent itself to work with email.