Falcon Structures
io.github.ygfalcon/falcon-structuresygfalconstreamable-httpv1.0.0Scanned
Price crypto structured notes (autocallables, shark fins, range accruals) via Monte Carlo; x402.
3 tools: 1 change things and 2 only read.
- Reads private data · 1
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
1 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
3 tools
Changes things 1Claude Code: ask
price_noteStructured-note pricing for crypto.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Structured-note pricing for crypto. Send a JSON term sheet (autocallable, barrier reverse convertible, range accrual, principal-protected, shark fin) on BTC, ETH or SOL; get the fair coupon or participation, probabilities (autocall per observation, knock-in, loss), greeks, a spot x vol scenario grid and payoff-diagram data. Monte Carlo on live Deribit implied vol. Free preview; full quote $0.02 USDC via x402 on Solana or Base. Costs $0.02 USDC (x402).
Only reads 2Show 2 read-only tools
market_snapshotFree: live spot, Deribit implied vol (DVOL) and 30d realized vol for BTC, ETH or SOL.No findings
Why it is in this group
- The name "market_snapshot" says "snapshot": a word for reading.
Description, as the server wrote it Free: live spot, Deribit implied vol (DVOL) and 30d realized vol for BTC, ETH or SOL.
preview_noteFree indicative quote: fair coupon/participation rounded to 0.5%, probabilities, payoff diagram.Reads private dataNo findings
Why it is in this group
- The name "preview_note" says "preview": a word for reading.
What it can reach
- private-dataThe name "preview_note" says "preview" and "note": it reads notes.
Description, as the server wrote it Free indicative quote: fair coupon/participation rounded to 0.5%, probabilities, payoff diagram.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged untrusted-input or outbound.
- Reads private data1
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http falcon-structures https://falcon-structures.vercel.app/mcpclaude mcp add --transport http falcon-structures https://falcon-structures.vercel.app/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__falcon-structures__preview_note",
"mcp__falcon-structures__market_snapshot"
],
"ask": [
"mcp__falcon-structures__price_note"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as falcon-structures. Review it before you use it.
Capability tags behind 1 rule
- mcp__falcon-structures__preview_note private-data
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.github.ygfalcon/falcon-structures/verify?hash=6ae80d2849f1bde88888ceac1e1d2987b36d3becaf1ad87c14944d9731b490a1" | jq -e '.changed == false'Pinned hash 6ae80d2849f1, from Oct 23, 2026, 20:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.ygfalcon/falcon-structures/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.ygfalcon/falcon-structures)Source: MCP Registry. Synced Oct 23, 2026, 20:17 UTC.