Free MCP Security Challenge: submit your server, get a 10-layer audit

#mcp #aiagents #security #opensource

Dev.to Article 1: Free MCP Security Challenge

Title: "Free MCP Security Challenge: submit your server, get a 10-layer audit + signed trust card"

Body:

I'm running a free security audit challenge for MCP server developers. Here's the deal:

You submit your GitHub repo URL
I run a 10-layer security audit (automated, ~2 minutes)
If it passes, your server goes into the catalog with a signed Agent Trust Card (Ed25519, RFC 8785)
Everything is free. No payment, no subscription, no catch.

What the audit does

L1.5: Metadata checks (README, license, not archived, not stale)
L1.6: 36 Semgrep rules + 18 secret patterns + OSV dependency scan
L1.7: 8 malware pattern checks + binary/launcher detection
L1.8: 28 malware family signatures (Emotet, LockBit, Cobalt Strike, etc.)
L1.9: 32 prompt injection defense rules (the #1 attack against AI agents)
L2: Docker sandbox (gVisor, network=none, filesystem=read-only, caps dropped)
L3: Continuous runtime monitoring (weekly re-audit, drift detection)
WAF: 38 attack signatures (SQLi, XSS, SSRF, path traversal)
Honeypot: 50+ fake paths with 24h auto-ban
Threat Intel: abuse.ch feeds (URLhaus + MalwareBazaar + ThreatFox)

How to submit

curl -X POST https://marketnow.site/api/submit-skill \
  -H "Content-Type: application/json" \
  -d '{"repo_url": "https://github.com/your-username/your-mcp-server"}'

That's it. You get back a submission_id and skill_id. L1.5 + L1.7 run synchronously (~5 seconds). L2 sandbox audit queues via GitHub Actions (~2 minutes). If it passes (score >= 7), your server is promoted to the catalog automatically within 1 hour.

What you get

Signed Agent Trust Card (ATC) — Ed25519, RFC 8785 JCS, schema v1.1.0. Verifiable by anyone at GET https://marketnow.site/api/atc?action=verify&card_id=ATC-2026-XXXXXXX
Sentinel certificate — SHA-256 signed, with per-layer scores
Catalog listing — your server appears alongside n8n (198k stars), Anthropic's inspector, Google's chrome-devtools-mcp, and Vibe
Public audit ledger — every step is a git commit, visible in the repo

What's already in the catalog

18 community-submitted servers, all with score 10/10:

n8n (198k stars) — workflow automation
worldmonitor (74k stars) — real-time intelligence
Scrapling (71k stars) — web scraping framework
ruflo (66k stars) — agent meta-harness
TrendRadar (60k stars) — trend detection
context7 (59k stars) — context management
chrome-devtools-mcp (47k stars) — Chrome DevTools
UI-TARS-desktop (38k stars) — UI automation
fastmcp (26k stars) — MCP framework
vibes-coded-mcp (1 star) — action-receipts (our first real external user!)

Everything is free

No payment required
No subscription
No API key needed to submit
No auth needed to verify
The catalog is public
The audit ledger is public (GitHub)
The ATC verification is public
The MCP server (npx -y marketnow-mcp@1.7.0) is free

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