Give Claude Code its own inbox

PostNuvia is the fastest way to give a Claude Code agent its own email inbox. Now it can send email and manage full conversation threads from a dedicated inbox it owns.

PostNuvia ships an official plugin for Claude Code

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[ Install ]

One command

The official PostNuvia plugin for Claude Code wires the hosted MCP server and its bundled skills in one command.

[ Why email ]

Why your Claude Code agent needs its own inbox

PostNuvia is the first email provider built for AI agents.

One command, both surfaces

The plugin installs from github.com/postnuvia-to/postnuvia-plugins and wires the hosted PostNuvia MCP server plus its bundled skills together. The skill alone is still available if you only want the guidance.

Acts without you in the loop

Claude Code can initiate outreach, reply to incoming email, and manage threads autonomously. You see the result, not every step.

Dedicated agent identity

Your agent gets its own inbox and address. No shared credentials, no routing through your personal account.

Full audit trail

Every email sent or received is logged with the context that produced it. You know exactly what happened and when.

[ Code ]

Working code

[ Builder ]

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[ FAQ ]

FAQ

Common questions about PostNuvia and Claude Code.

A skill is a markdown instruction bundle that teaches an agent how to use tools it already has. The plugin is a package that also wires the hosted PostNuvia MCP server, so the tools themselves arrive with it, along with the bundled skills. Install the plugin if you want email to work end to end from a single command; install the skill alone if you have already configured MCP yourself and only want the workflow guidance.

An official AgentSkills integration that gives Claude Code access to all PostNuvia operations - inbox creation, sending, receiving, thread management, and webhooks - through plain English prompts.

It is published from the PostNuvia plugins repository at github.com/postnuvia-to/postnuvia-plugins, which hosts its own Claude Code marketplace manifest. That is why installation is two steps: add the marketplace, then install postnuvia@postnuvia from it.

Yes. If you prefer MCP, run: npx add-mcp https://mcp.postnuvia.com/mcp. Both the skill and MCP expose the same functionality. Skills is the recommended path for Claude Code.

No. PostNuvia handles deliverability, domain management, and inbox provisioning. You just need an API key.

Yes. Every PostNuvia inbox can send and receive. Incoming emails are available via the API, the skill, or webhooks in real time.

Yes. 3 inboxes and up to 100 sends per day. No credit card required.

Gmail API requires OAuth and was built for human accounts, not programmatic agent use. SendGrid handles sending only - no receiving, no threading, no reply parsing. PostNuvia gives your Claude Code agent a dedicated inbox it can create on demand, send from, receive on, and read - with full thread context and no credential sharing.