Provenancewhere it came from, and what was verified
Published by the owner of ironshell.io, who proved control of the domain through the official MCP registry.
🛡 Permissions & trustwhat this server can touch before you run it
About
Trust verdict for an x402 payment endpoint: health, 402 handshake, price, proceed/caution/avoid.
Packages & transports
Computed from the server's own data, not a hidden formula. This measures how much you can depend on it, not how popular it is. Stars are shown separately, on purpose. How it's scored →
▸preflight100A
Structural, not an LLM's opinion: each check is a fact about the tool's schema, so it's reproducible. One weak tool drags the score (60% average, 40% worst). How it's scored →
Raise this grade
up to +16 on qualityOwn this server? Here's exactly what to change, biggest wins first. Every number below is a fixed point value, so you can see what each edit is worth before you make it.
With no reviews this sits at a neutral 11. Reviews reporting it works push it toward the full 20.
Add an SPDX license (like MIT or Apache-2.0) to the repo so it's detected.
Already earned (4) ▾Already earned (4) ▴
These are structural checks, so the fixes are exact. See the full formula →
Add a badge to your README
[](https://socketcat.com/servers/io.ironshell/preflight402)Shows your live quality grade and links back here. It updates itself as the grade changes.
Reviews
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{
"mcpServers": {
"preflight402": {
"command": "npx",
"args": [
"-y",
"preflight402"
]
}
}
}▶ Try itlive against preflight402.ironshell.io
This server has a hosted endpoint, so we can connect and list its actual tools right here. Nothing runs on your machine.