Replyz / Gmail MCP alternative
A Gmail MCP server gives your agent your inbox. Give it its own.
Connecting Gmail through MCP hands an AI agent your personal email: every thread, every contact, and the power to send as you. For most agent jobs (signing up for a service, reading a verification code, handling a supplier) the agent only needs an address of its own. That's what Replyz gives it.
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Gmail MCP server vs a Replyz inbox
| Gmail MCP server | Replyz | |
|---|---|---|
| Whose inbox | Yours | The agent's own address |
| What the agent can read | Your whole mailbox | Only mail sent to its address |
| Sending | As you, to anyone | To you, and replies in threads someone started; you approve |
| Setup | Google OAuth app or consent screen | An API key in an environment variable |
| Wait for an email | Search or poll | One call that waits (wait_for_email) |
| Verification codes | The agent parses the email | One call returns the code or link |
| Best for | Managing your own email | Giving the agent email for its own tasks |
When is a Gmail MCP server the right choice?
When you want the agent to work on your email: triage your inbox, draft replies in your voice, or search years of history. Replyz doesn't do that and isn't meant to. Many people use both: Gmail MCP for their own inbox, and a Replyz inbox for the agent's sign-ups, codes and errands.
How do you give the agent its own inbox instead?
Connect the Replyz MCP server (Streamable HTTP, your API key as a header):
https://mcp.replyz.io/mcp Authorization: Bearer $REPLYZ_API_KEY
Then ask: "Create an inbox, sign up for the service and give me the code." The agent calls create_inbox, fills in the form with its own address, and calls get_verification. Setup for each client: Claude, Claude Code, Cursor, Hermes, OpenClaw.
What does that look like?
you Sign up for the analytics tool. Don't use my Gmail. agent create_inbox → analytics-7c1e@youreplyz.com agent get_verification(from: "*@analytics.example") ✓ link: https://analytics.example/verify?t=… agent Done. The account is under the agent's address, not yours.
Frequently asked questions
What does a Gmail MCP server do?
It connects an AI agent to your Gmail account through the Gmail API, usually with Google OAuth, so the agent can search, read, draft and send mail as you.
Why would I not want a Gmail MCP server for my agent?
Because the agent gets your whole personal inbox and can send as you. For tasks like signing up for services or reading verification codes, the agent only needs an address of its own.
When is a Gmail MCP server the right choice?
When you want the agent to manage your own email: triage your inbox, draft replies as you, or search your history. Replyz is for giving the agent a separate address.
Can I use both?
Yes. Many people keep a Gmail MCP server for their own inbox and give the agent a Replyz inbox for sign-ups, codes and anything that shouldn't touch personal mail.
Which agents can use the Replyz MCP server?
Claude (web, Desktop and Cowork), Claude Code, Cursor, Hermes and other MCP clients that can send an Authorization header. ChatGPT needs OAuth, which Replyz plans to add after launch.