MCP server

Inbox Preview

ai.powerline/inbox-preview

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them

Website

At a glance

Type

MCP server

Publisher

powerline.ai (verified by the MCP Registry)

Status

Working at last check

Tools

4

Token cost

About 1,025 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http inbox-preview https://api.powerline.ai/v1/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.inbox-preview]
url = "https://api.powerline.ai/v1/mcp"

Gemini CLI

{"mcpServers":{"inbox-preview":{"httpUrl":"https://api.powerline.ai/v1/mcp"}}}

Cursor

{"mcpServers":{"inbox-preview":{"url":"https://api.powerline.ai/v1/mcp"}}}

VS Code

{"servers":{"inbox-preview":{"type":"http","url":"https://api.powerline.ai/v1/mcp"}}}

Antigravity

agy mcp add inbox-preview https://api.powerline.ai/v1/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"inbox-preview","server_url":"https://api.powerline.ai/v1/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"inbox-preview","server_url":"https://api.powerline.ai/v1/mcp"}

Tools

• get_job ~93 tokens
  Get the status and screenshots for a preview job. Poll until status is "completed".
• get_screenshot ~235 tokens
  Fetch a rendered screenshot. Returns the image URL for the given job, client, width, and environment (color scheme / images).
• list_clients ~73 tokens
  List the email clients this deployment can render right now, with their rendering tier, engine, and capabilities
• submit_preview ~624 tokens
  Submit an email for rendering across email clients — full HTML, or a complete raw .eml (base64). Provide exactly one of html/eml. Returns a job ID to poll for results.

Browse

• Website screenshots
• Email

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