WolfeJam Technical Testing Certification - Score your MCP server for free. 52 tests, 9 tiers (49 scored + Tier 9 Receipt validation), from the creator of IANA-registered .faf format. Full leaderboard coming soon - what will your server score?
The FAF Foundation Testing Standard for MCP Servers
"When brakes must work flawlessly, so must our MCP servers"
WJTTC is the WolfeJam Technical Testing Certification. wolfejam is the dev who created the IANA-registered .faf format for AI context - the first and only MCP of its kind. He achieved this largely due to his obsession with technical details and testing.
WJTTC is the rollout of his self-certification secrets to help grade other MCP servers for free, with a view to improving MCP server quality system-wide. Now testing across Claude, Gemini, Grok, Rust, and IDE servers (Cursor, Windsurf, Cline, VS Code).
Score your Server for free. Full leaderboard going live soon - what will your server score?
| Component | Tests | Speed |
|---|---|---|
| faf-cli (TypeScript) | 1,143 tests, 50 suites | Production CLI |
| faf-wasm-sdk (Rust/WASM Mk4) | 136 tests | 0.13s total |
| wjttc (Certification) | 105 tests | 52 MCP tests, 9 tiers |
Testing across 5 MCP servers (Claude, Gemini, Grok, IDE Edition, Rust) and counting.
The 🍊 Big Orange is a badge — recognition that the Server Owner(s) have gone above and beyond the 100% pass rate.
The 🍊, much like a Michelin Star for a restaurant, is awarded for excellence and well-deserved for Best-of-Class MCP servers.
Did you know? Most MCP servers on the registry score Silver or below. Only 3 servers have achieved 🍊 Big Orange certification.
Full leaderboard coming soon.
| Badge | Tier | Score | Meaning |
|---|---|---|---|
| 🍊 | Big Orange | 100% + BADGE | The Michelin Star of MCP servers (awarded for excellence beyond metrics) |
| 🏆 | Trophy | 100% | Perfect - 100% pass rate |
| 🥇 | Gold | 99%+ | Exceptional |
| 🥈 | Silver | 95%+ | Excellent, room for polish |
| 🥉 | Bronze | 85%+ | Production ready (minimum recommended) |
| 🟢 | Green | 70%+ | Solid foundation |
| 🟡 | Yellow | 55%+ | Needs improvement |
| 🔴 | Red | <55% | Critical issues |
# Test any MCP server
npx wjttc certify --mcp "npx your-mcp-server"
# Example output:
# 🏆 CERTIFICATION: TROPHY
# Score: 100/100
# Tests: 49/49 passed (+ 3 validation checks)
# Badge: 🍊 Big Orange (awarded for excellence)
| Server | Score | Status |
|---|---|---|
| claude-faf-mcp | 100% 🍊 | Trophy + Big Orange Badge |
| faf-mcp | 100% 🍊 | Trophy + Big Orange Badge |
| grok-faf-mcp | 100% 🍊 | Trophy + Big Orange Badge |
52 tests across 9 tiers (49 scored + 3 validation checks):
| Tier | Name | Weight | Tests |
|---|---|---|---|
| 1 | Protocol Compliance | 20% | 12 |
| 2 | Capability Negotiation | 10% | 8 |
| 3 | Tool Integrity | 20% | 6 |
| 4 | Resource Management | 10% | 6 |
| 5 | Security Validation | 15% | 3 |
| 6 | Performance Benchmarks | 15% | 6 |
| 7 | Integration Readiness | 10% | 5 |
| 8 | FAF Documentation | 5% | 3 |
| 9 | TAF Receipt Validation | Informational | 3 |
Note: Tier 9 validates .taf receipt files but doesn't affect the 0-100% score. It provides proof of testing history over time.
- uses: wolfe-jam/wjttc-action@v1
with:
mcp-path: './dist/index.js'
tier: bronze
Before running WJTTC certification, consider these preparation steps:
For FAF-enabled projects (Tier 8):
# Validate project.faf structure and score
faf score
# If you have faf-cli source code, run Boris-Flow integration tests
cd /path/to/faf-cli
./tests/boris-flow.test.sh
Boris-Flow is faf-cli's 12-test validation suite that checks:
Running Boris-Flow before WJTTC certification ensures your .faf file is valid and complete, which helps you pass Tier 8 tests.
Workflow:
faf init - Create project.faffaf auto - Enhance to 100%npx wjttc certify --mcp "npx your-server" - Run certification| faf-cli | npx faf-cli init — create .faf for any project |
| claude-faf-mcp | MCP server for Claude Desktop |
| gemini-faf-mcp | MCP server for Gemini CLI |
| grok-faf-mcp | MCP server for Grok |
| faf-mcp | MCP server for Cursor, Windsurf, Cline, VS Code |
| rust-faf-mcp | MCP server in Rust |
| faf-skills | 17 Claude Code skills |
| faf.one | Blog, downloads, docs |
| IANA Registration | application/vnd.faf+yaml |
format | driven 🏎️⚡️ wolfejam.dev
faf-cli — The original AI-Context CLI. A must-have for every builder.
npx faf-cli auto
If wjttc has been useful, consider starring the repo — it helps others find it.
Anthropic MCP #2759 · IANA Registered: application/vnd.faf+yaml · faf.one · npm
FAQs
WolfeJam Technical Testing Certification - Score your MCP server for free. 52 tests, 9 tiers (49 scored + Tier 9 Receipt validation), from the creator of IANA-registered .faf format. Full leaderboard coming soon - what will your server score?
The npm package wjttc receives a total of 113 weekly downloads. As such, wjttc popularity was classified as not popular.
We found that wjttc demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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