WJTTC
Certify your custom MCP server against WJTTC’s 52-test, nine-tier suite before you ship it to users or the registry.
Overview
WJTTC is an MCP server for the Ship phase that runs F1-grade certification with 52 tests across 9 tiers including receipt validation on your MCP server.
What is this MCP server?
- 52 tests across 9 tiers including T9 Receipt validation
- 49 scored tiers plus dedicated receipt-validation tier in v1.4.0
- npm stdio package wjttc for local certification runs
- F1-grade MCP certification positioning for ecosystem quality
- Referenced ecosystem slot #2759 in registry metadata
- 9 tiers (49 scored plus T9 Receipt validation)
- Server version 1.4.0
What problem does it solve?
You built an MCP server but lack a rigorous, repeatable way to prove it meets protocol expectations before release.
Who is it for?
Solo maintainers and small teams publishing custom MCP servers who want structured regression certification in npm stdio form.
Skip if: Builders who only consume third-party MCP remotes and never author or fork their own server implementation.
What do I get? / Deliverables
After you run WJTTC, you get tier-scored certification results from 52 tests so you can fix failures and ship with documented MCP quality.
- Tier-scored results from 52 MCP certification tests
- Receipt validation coverage via T9 tier feedback
Recommended MCP Servers
Journey fit
How it compares
MCP certification test harness, not a business-data or payment integration server.
Common Questions / FAQ
Who is WJTTC for?
MCP server authors and indie devs who need automated tiered certification before shipping or listing a server.
When should I use WJTTC?
Use it in ship/testing when your MCP server is feature-complete and you want scored compliance checks including receipt validation.
How do I add WJTTC to my agent?
Install the npm package wjttc with stdio transport, point your MCP client or CI runner at it, and execute the 52-test certification suite against your server build.