Cejel MCP Server

Cejel ("SEH-jel") - a trust certificate for your codebase. Free, offline, no-signup CLI that scores the engineering signals that tell you whether to trust a repo - tests, secrets, isolation, claim-vs-reality, CI/audit discipline - and prints a trust certificate + badge. Especially valuable when AI wrote a lot of the code: that's exactly when you can't eyeball trust. Built on a deterministic, no-LLM scoring core…

People who work with ai generated code, devsecops and offline and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-17 · ★ 2 · #149 OF 168 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-09-18

AGPL-3.0 · TypeScript servers · how we verify → /methodology

01 · Install Cejel

Docker

docker run -i --rm ghcr.io/barglabs/cejel@sha256:a0f0049a57aea728f3e5b026882887d0d2ea092d5f112be21db1d47298bcb6ec

Claude Desktop - add to config

{
  "mcpServers": {
    "barglabs-cejel": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/barglabs/cejel@sha256:a0f0049a57aea728f3e5b026882887d0d2ea092d5f112be21db1d47298bcb6ec"
      ]
    }
  }
}

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as container (OCI image) - can be sandboxed away from your filesystem

license AGPL-3.0 - declared in the repository

registry namespace io.github.BargLabs is GitHub-verified and matches the repo owner

03 · What Cejel can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.4.10 · 2026-09-17

[0.4.10] - 2026-09-17 · Release integrity · 0.4.9 was published to npm by hand, by me, from a machine holding the package token, outside the workflow that generates provenance. The registry shows publisher cejel rather…

v0.4.9 · 2026-09-16

trim two seeds to the 1000-char statement cap · drain 7 harvested seeds - delivered to alfred #1410 · bound environment-template filename matching · cover the v23 PEM in-loop dev/self-signed guard with tests only…

v0.4.8 · 2026-09-08

recognize PEM-formatted private-key assignments (v23-only) · ADR-0003 renumber, status fix, and CONSTRAINTS-VERSION refresh (wave 1) · fix staging schema on three pending lesson seeds · measure whether #276/#277 moved…

04 · Who maintains Cejel

Cejel is maintained by barglabs. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/barglabs/cejel
website: https://cejel.dev/
category: developer tools - ranked #149 of 168 actively-maintained developer tools servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-17)
registry: io.github.BargLabs/cejel (active, first published 2026-07-17 · 18 versions)
packages: oci:ghcr.io/barglabs/cejel@sha256:a0f0049a57aea728f3e5b026882887d0d2ea092d5f112be21db1d47298bcb6ec

06 · Cejel FAQ

What is Cejel?

Is Cejel still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-17 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Cejel?

Run `docker run -i --rm ghcr.io/barglabs/cejel@sha256:a0f0049a57aea728f3e5b026882887d0d2ea092d5f112be21db1d47298bcb6ec`. You can also paste the ready-made client config above.

07 · Alternatives to Cejel

Alternatives to Cejel

Maintained developer tools servers if Cejel isn't the fit.

Pairs well with

Servers that cover what Cejel doesn't - only shown when the pairing reason fits the companion.

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