The Machine Inbox MCP server,
connected in one click.
Task-scoped email inboxes for AI agents: read mail, extract verification codes, and reply. Connect the official Machine Inbox MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Machine Inbox to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http machine-inbox https://machineinbox.com/mcpRun in your terminal, then restart Claude Code.
Machine Inbox · https://machineinbox.com/mcp
What your AI can do with Machine Inbox
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “get_service_info”: Read the Machine Inbox service instructions: pricing, payment rails, endpoints, and limits.”
“Use “create_inbox”: Request a new paid inbox. Buying requires an out-of-band payment (Stripe MPP or x402 USDC on Base); this tool returns the live HTTP 402 paym.”
“Use “get_inbox”: Read an inbox: address, status, expiry, limits, and usage.”
“Use “list_messages”: List messages in an inbox, newest first. Pass after=<newest createdAt seen> to poll for only new mail.”
How secure is the Machine Inbox MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Machine Inbox holds up.
Official endpoint
Operated by Machine Inbox (machineinbox.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Machine Inbox adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Machine Inbox
Choose Machine Inbox in the gate directory. No sign-in needed.
Use it anywhere
Machine Inbox's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Machine Inbox exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
get_service_info — Read the Machine Inbox service instructions: pricing, payment rails, endpoints, and limits.
create_inbox — Request a new paid inbox. Buying requires an out-of-band payment (Stripe MPP or x402 USDC on Base); this tool returns the live HTTP 402 paym
get_inbox — Read an inbox: address, status, expiry, limits, and usage.
list_messages — List messages in an inbox, newest first. Pass after=<newest createdAt seen> to poll for only new mail.
get_message — Fetch one message with parsed text, HTML, and attachment download URLs.
get_verification_code — Extract the newest one-time verification code or confirmation link from inbound mail. Ideal for signup and login flows.
reply_to_message — Send an included plain-text reply to the authenticated sender of an inbound message.
set_webhook — Register or replace the inbox webhook: an HMAC-signed POST fires on every inbound message with metadata, extracted verification codes, and i
+ 3 more tools once connected
Who runs the Machine Inbox MCP server?
The Machine Inbox MCP server at a glance
https://machineinbox.com/mcpQuestions, answered
Is there an official Machine Inbox MCP server?
Yes — Machine Inbox operates its own remote MCP server at machineinbox.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Machine Inbox to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Machine Inbox in the directory. No account or sign-in is needed. From then on, Machine Inbox's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Machine Inbox runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Machine Inbox MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Machine Inbox in minutes. No credit card required.
Connect more than just Machine Inbox
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Machine Inbox in: Claude · Claude Code · ChatGPT · Cursor · VS Code