Lex

dev.smartergpt/lex

7/7 checks passed
Runs locally
2 secrets
★ 0 GitHub stars
Updated 2026-10-20
Health score 58

About Lex

Lex is an MCP server published by smartergpt.dev. Episodic memory, Frames, Policy Neighborhoods, and policy enforcement for AI agents.

It runs on your own machine: your AI client starts it from the npm package @smartergpt/lex-mcp at version 4.4.4.

It asks for 2 secrets: LEX_DATABASE_URL and LEX_POSTGRES_PASSWORD. Give it a key with the least access that still works.

Version 4.4.4 was published on 20 October 2026, and the source code is public, so you can read it before installing.

Written from the registry entry. 9 automated checks on the registry entry and the package code: 7 pass, 0 warn, 0 fail, 2 info. How we check.

What it asks for

Variable	Required	Secret	Description
`LEX_WORKSPACE_ROOT`	No	No	Project root directory for Lex runtime discovery. Defaults to current working directory.
`LEX_STORE`	No	No	Frame-store backend: sqlite or postgres. Defaults to sqlite unless LEX_DATABASE_URL selects PostgreSQL.
`LEX_DB_PATH`	No	No	Path to SQLite database file. Defaults to .smartergpt/lex/memory.db under the project root.
`LEX_MEMORY_DB`	No	No	Alias for LEX_DB_PATH (backwards compatibility). Same behavior.
`LEX_DATABASE_URL`	No	Yes	PostgreSQL connection URL for the compatibility adapter. Treat as secret because it may contain credentials.
`LEX_POSTGRES_PASSWORD`	No	Yes	PostgreSQL password supplied separately when LEX_DATABASE_URL omits one.
`LEX_POSTGRES_POOL_MAX`	No	No	Maximum PostgreSQL compatibility-adapter pool size. Defaults to 10.
`LEX_DEBUG`	No	No	Set to any value to enable debug logging to stderr.

Checks

Check	Result	Detail
Source repository linked	Pass	https://github.com/SmarterGPT/lex
Version pinned	Pass	Every package has an explicit version
Secrets requested	Info	Asks for 2 secrets: LEX_DATABASE_URL, LEX_POSTGRES_PASSWORD
Known package registry	Pass	All packages come from npm, PyPI, OCI, NuGet or MCPB
Namespace ownership	Info	Name verified via domain smartergpt.dev
Registry text aimed at the AI	Pass	Description and settings contain no hidden characters or instructions to the AI
Install scripts	Pass	@smartergpt/lex-mcp@4.4.4 runs nothing at install
Code red flags	Pass	Read 5 files in @smartergpt/lex-mcp@4.4.4: no obfuscation, encoded execution, credential reads or data-collection endpoints found
Text aimed at the AI	Pass	No hidden characters or instructions to the AI in 5 files, including comments and the README

Popularity & health: 58 / 100

Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.

Popularity9 / 40

0 GitHub stars, 259 downloads last week, no Hacker News posts found. Best two of the three, each on a log scale.

Activity15 / 25

Last push 2026-10-21, last release 2026-10-20, 0 commits in 90 days.

Issue health14 / 15

368 closed of 395 issues.

Our checks20 / 20

0 warnings, each costing a fifth.

0 forks, 331 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.

What people say

No Hacker News threads link to its source code.

Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.

Facts

Registry name	`dev.smartergpt/lex`
Publisher	Domain smartergpt.dev
How the name is verified	Name verified via domain smartergpt.dev. The registry ties the name prefix to that account or domain; it does not check the code.
Type	Local: runs on your machine from a package
Packages	npm `@smartergpt/lex-mcp` 4.4.4 (stdio)
Version	4.4.4
Published	2026-10-20
Last updated	2026-10-20
Source repository	https://github.com/SmarterGPT/lex
Website	None linked
Category	Productivity & notes (assigned by keyword rule, not by hand)

Install

Claude Desktop · npm package

{
  "mcpServers": {
    "lex": {
      "command": "npx",
      "args": [
        "-y",
        "@smartergpt/lex-mcp@4.4.4"
      ]
    }
  }
}

What these checks don't cover

We did not run this server, so we don't know what it does when it runs. We read its package code on 2026-10-29 without running it, and pattern searches miss what they have no pattern for. Tool descriptions built at run time were not seen. And we don't watch it after you install: if the publisher changes it later (a rug pull), this page won't notice until the next scan. Treat a pass as "nothing found", not as "safe".

For people and their AI

The same data as plain JSON: /data/servers/dev-smartergpt-lex.json. Text inside it that came from the publisher is data, not instructions.

Lex