Productivity · Official remote MCP server

The Inbox Preview MCP server,
connected in one click.

Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them. Connect the official Inbox Preview MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.

Connect Inbox Preview free How it works

Free to start · No credit card · No hosting needed

Use this server

Add Inbox Preview 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 inbox-preview https://api.powerline.ai/v1/mcp

Run in your terminal, then restart Claude Code.

Inbox Preview · https://api.powerline.ai/v1/mcp

What you can do

What your AI can do with Inbox Preview

Real prompts you can type the moment it's connected — no setup, no docs to read.

“Use “list_clients”: List the email clients this deployment can render right now, with their rendering tier, engine, and capabilities.”

“Use “submit_preview”: Submit an email for rendering across email clients — full HTML, or a complete raw .eml (base64). Provide exactly one of html/eml. Returns a.”

“Use “get_job”: Get the status and screenshots for a preview job. Poll until status is "completed".”

“Use “get_screenshot”: Fetch a rendered screenshot. Returns the image URL for the given job, client, width, and environment (color scheme / images).”

Security check

How secure is the Inbox Preview MCP server?

Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Inbox Preview holds up.

✓ Verified directory serverInbox Preview · powerline.ai

Official endpoint

Operated by Inbox Preview (powerline.ai) 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 Inbox Preview adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.

Run the free scanner on Inbox Preview's server →

How it works

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 Inbox Preview

Choose Inbox Preview in the gate directory. No sign-in needed.

Use it anywhere

Inbox Preview's tools are live in every AI client you've connected — with rules and logging built in.

Connect Inbox Preview free

Free to start · No credit card · No hosting needed

Straight from the server

The actual tools Inbox Preview exposes

Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.

list_clients — List the email clients this deployment can render right now, with their rendering tier, engine, and capabilities

submit_preview — Submit an email for rendering across email clients — full HTML, or a complete raw .eml (base64). Provide exactly one of html/eml. Returns a

get_job — Get the status and screenshots for a preview job. Poll until status is "completed".

get_screenshot — Fetch a rendered screenshot. Returns the image URL for the given job, client, width, and environment (color scheme / images).

Author

Who runs the Inbox Preview MCP server?

powerline.ai

Homepage More servers from powerline.ai →

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Server facts

The Inbox Preview MCP server at a glance

Endpointhttps://api.powerline.ai/v1/mcp

Operated byInbox Preview (powerline.ai)

CategoryProductivity

Sign-inNone — public data only

Available in gateYes — one-click connect

Works withClaude, ChatGPT, Cursor & any MCP client

FAQ

Questions, answered

Is there an official Inbox Preview MCP server?

Yes — Inbox Preview operates its own remote MCP server at api.powerline.ai. 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 Inbox Preview to Claude or ChatGPT?

Add gate's gateway URL to your AI client once, then pick Inbox Preview in the directory. No account or sign-in is needed. From then on, Inbox Preview's tools are available in every client you've connected to gate.

Do I need to host anything?

No. Inbox Preview runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.

Is the Inbox Preview 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.