Is Mcp Server Auth Js safe to install?

SaferSkills independently audited Mcp Server Auth Js (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.

CategoryWeightCategory scoreContribution

Securityprompt, exec, net, exfil, eval

35%

100

35.0 pts

Supply chainhash, typosquat, maintainer, lockfile

20%

100

20.0 pts

Maintenancestaleness, pinning, CI

15%

100

15.0 pts

TransparencySKILL.md, perms, README

15%

100

15.0 pts

Communityinstalls, verify, response

15%

100

15.0 pts

Findings & checks · 0 flagged

Securityscore 100 · 0 findings

✓—All security checks passedNo findings in this category for the latest scan.pass

Supply chainscore 100 · 0 findings

✓—All supply chain checks passedNo findings in this category for the latest scan.pass

Maintenancescore 100 · 0 findings

✓—All maintenance checks passedNo findings in this category for the latest scan.pass

Transparencyscore 100 · 0 findings

✓—All transparency checks passedNo findings in this category for the latest scan.pass

Communityscore 100 · 0 findings

✓—All community checks passedNo findings in this category for the latest scan.pass

The primary manifest — the file an agent reads to learn what this artifact does.

README.md · 1 file

README.md1.2 KB · Markdown

JavaScript MCP Auth Server

This package shows the remote MCP auth boundary in JavaScript:

Express HTTP server
MCP Streamable HTTP transport at /mcp
Protected Resource Metadata
Bearer token middleware
Keycloak token introspection
audience validation
mcp:tools scope enforcement
protected add_numbers and server_status tools

Run

pnpm mcp-auth-server-js install
cp .env.example .env
pnpm mcp-auth-server-js demo:keycloak
pnpm mcp-auth-server-js start

For the demo, configure Keycloak with:

client scope: mcp:tools
MCP server confidential client: mcp-server
demo client/user for obtaining an access token
token audience: http://localhost:3000/mcp

Demo Scripts

pnpm mcp-auth-server-js demo:no-token
pnpm mcp-auth-server-js demo:metadata
pnpm mcp-auth-server-js demo:get-token
pnpm mcp-auth-server-js demo:call-tool
pnpm mcp-auth-server-js demo:bad-scope

The important point is the failure order:

no token returns 401 with WWW-Authenticate
metadata tells the client where auth lives
token introspection rejects inactive tokens
audience validation rejects tokens for another API
scope validation rejects tokens without mcp:tools

Mcp Server Auth Js— agent skill

Is Mcp Server Auth Js safe to install?

JavaScript MCP Auth Server

Run

Demo Scripts

Audit the pieces. Scan the whole. Decide.