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Lens MCP Server

by mrhpython Your server? Claim it
local only

Lens MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 39 installs a week from npm. Last commit 28 Aug 2026.

Outside-in validation gate for AI-generated text; a separate model checks LLM output, fail-closed.

Installs per day peak 227 · avg 15 · +46% w/w
a month agotoday
39
Installs / week
npm · @soulfield/lens-mcp
0
Stars
0 open issues
28 Aug 2026
Last commit
0 releases in 90 days
MIT
License
JavaScript

What the code does

We read the source, 19 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

            child = spawn(KIT_BIN, args, {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add lens-mcp -- npx -y @soulfield/lens-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "lens-mcp": {
      "args": [
        "-y",
        "@soulfield/lens-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.lens-mcp]
command = "npx"
args = ["-y", "@soulfield/lens-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "lens-mcp": {
      "args": [
        "-y",
        "@soulfield/lens-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "lens-mcp": {
      "args": [
        "-y",
        "@soulfield/lens-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: SOULFIELD_API_BASE (Lens API base URL. Use https://api.soulfield.one for the hosted service.), SOULFIELD_API_KEY (API key for validate_content and scrub_pii. Get one free, self-serve, no card, at https://api.soulfield.one/pricing#signup. lens_health needs no key.). The author declared them in the registry entry; get the values from the project itself.

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Lens MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Lens MCP?
Lens MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @soulfield/lens-mcp was installed 39 times last week.
How do I connect Lens MCP?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @soulfield/lens-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Lens MCP?
The npm package @soulfield/lens-mcp was installed 39 times in the last week. Week over week that is +46%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Lens MCP open source?
Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.