Security & Testing

powerline.ai

Provides email rendering previews across multiple clients for testing.

1 endpoint4 known toolsFirst detected July 29, 2026Last detected August 29, 2026

ENDPOINT 1

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

No auth detected

MCP server metadata

Name: inbox-preview
Version: 0.1.0

Capabilities

tools.listChanged

Known tools 4

list_clients

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

Potential side effects

submit_preview

Submit an email for rendering across email clients — full HTML, or a complete raw .

Potential side effects

get_job

Get the status and screenshots for a preview job.

Inferred read-only

get_screenshot

Fetch a rendered screenshot.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

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

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: inbox-preview
Remote MCP URL: https://api.powerline.ai/v1/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

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

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Trust Data Available

BuiltWith Trust API v2 evidence for powerline.ai was fetched 2026-08-04T03:17:33.382Z and is being refreshed.

Trust status New

This domain appears to have previously been parked, so its current status is new or unverified.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.