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100
MCP live MCP 2025-11-25 streamable-http

ai.powerline/inbox-preview

ai.powerline/inbox-preview

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

Watch this dependency

Get before/after evidence when observed tools, schemas, authentication access, availability or the endpoint changes.

Inspect evidence and set up a watch Share public evidence report
Uptime
100.0%
5 direct probes · 30d
Response
1343ms
last probe
Tools
4
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://api.powerline.ai/v1/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
4 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
4 items in total; 3 or more earns these points.
pass Describes itself 10/10
86 characters; more than 30 earns these points.

Tools · 4

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 job ID to poll for results.

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).

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

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