mcp server
inbox-preview
Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them
Description as published by the maintainer. Source
- version 0.1.0
- active
active — Registry entry last updated 2026-07-28.
What this server can do
4 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
get_job(job_id)- Get the status and screenshots for a preview job. Poll until status is "completed". Required: job_id.
get_screenshot(client, job_id, color_scheme, viewport_width, images_disabled)- Fetch a rendered screenshot. Returns the image URL for the given job, client, width, and environment (color scheme / images). Required: job_id, client, viewport_width.
list_clients- List the email clients this deployment can render right now, with their rendering tier, engine, and capabilities
submit_preview(eml, html, renders, subject, include_previews)- 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.
Last successful function declaration observed on . Source: https://api.powerline.ai/v1/mcp. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://api.powerline.ai/v1/mcp.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 0.1.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-28 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-28 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| mcp tools declared | 4 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | api.powerline.ai | |
| mcp endpoint status | ok | The server listed 4 functions when asked. | as of probe | api.powerline.ai |
Where to get it
This record as data
Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.
GET /api/v1/entries/mcp_server.json