CaliberAPI Pistol Optic Fit
com.caliberapi/pistol-opticscaliberapi.comstreamable-httpv1.0.0Scanned
Source-cited pistol red dot compatibility: direct fits, adapter plates and optic footprints.
5 tools: 1 change things and 4 only read.
- Reads private data · 0
- 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.
5 tools
Changes things 1Claude Code: ask
check_fitAnswer whether a specific red dot optic fits a specific pistol, from source-cited data.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.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it Answer whether a specific red dot optic fits a specific pistol, from source-cited data. Returns fit "direct" (mounts on the slide cut, with the footprint), "adapter" (only through the adapter plate chain in via, with plate maker, model, mount and presented footprints, and plate sources), or "unknown" (no cited fit in the dataset, which is not evidence it does not fit). Returns "needs_clarification" with candidates when a name is ambiguous; call again with a candidate slug. Report the answer exactly as returned: never call an adapter fit a direct fit, and never turn "unknown" into "does not fit". Cite with the returned citation line and link html_url.
Annotations the server declares
- title: Check pistol and optic fit
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
Only reads 4Show 4 read-only tools
get_footprintDescribe one optic mounting footprint or plate system (for example RMR, RMSc, ACRO, DPP, Glock MOS): screw and recoil lug counts, the optics that use it, the pistols cut for it dir…No findings
Why it is in this group
- The name "get_footprint" says "get": a word for reading.
Description, as the server wrote it Describe one optic mounting footprint or plate system (for example RMR, RMSc, ACRO, DPP, Glock MOS): screw and recoil lug counts, the optics that use it, the pistols cut for it directly, and the adapter plates that mount or present it, with sources.
Annotations the server declares
- title: Get an optic footprint
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
list_optics_for_pistolList every optic with a cited fit on one pistol, each marked direct (with footprint) or adapter (with the plate chain in via).No findings
Why it is in this group
- The name "list_optics_for_pistol" says "list": a word for reading.
Description, as the server wrote it List every optic with a cited fit on one pistol, each marked direct (with footprint) or adapter (with the plate chain in via). Use it for questions like "what red dots fit my pistol". Optics not listed have no cited fit, which is not evidence they do not fit. Report the answer exactly as returned: never call an adapter fit a direct fit, and never turn "unknown" into "does not fit". Cite with the returned citation line and link html_url.
Annotations the server declares
- title: List optics for a pistol
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
list_pistols_for_opticList every pistol with a cited fit for one optic, each marked direct (with footprint) or adapter (with the plate chain in via).No findings
Why it is in this group
- The name "list_pistols_for_optic" says "list": a word for reading.
Description, as the server wrote it List every pistol with a cited fit for one optic, each marked direct (with footprint) or adapter (with the plate chain in via). Use it for questions like "what pistols take this red dot". Report the answer exactly as returned: never call an adapter fit a direct fit, and never turn "unknown" into "does not fit". Cite with the returned citation line and link html_url.
Annotations the server declares
- title: List pistols for an optic
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
searchFind pistols, optics and footprints by name.No findings
Why it is in this group
- The name "search" says "search": a word for reading.
Description, as the server wrote it Find pistols, optics and footprints by name. Returns slugs, names and page URLs to pass to the other tools. Use it when you are unsure of an exact model name.
Annotations the server declares
- title: Search the dataset
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
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 private-data or untrusted-input or outbound.
- Reads private data0
- 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 pistol-optics https://mcp.caliberapi.com/mcpclaude mcp add --transport http pistol-optics https://mcp.caliberapi.com/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__pistol-optics__list_optics_for_pistol",
"mcp__pistol-optics__list_pistols_for_optic",
"mcp__pistol-optics__get_footprint",
"mcp__pistol-optics__search"
],
"ask": [
"mcp__pistol-optics__check_fit"
],
"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 pistol-optics. Review it before you use it.
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/com.caliberapi/pistol-optics/verify?hash=325b2aebb7c4859799fa62251831c17fdb81050045c22ef308143157cd133489" | jq -e '.changed == false'Pinned hash 325b2aebb7c4, from Oct 26, 2026, 04:17 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/com.caliberapi/pistol-optics/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/com.caliberapi/pistol-optics)Source: MCP Registry. Synced Oct 26, 2026, 04:17 UTC.