io.github.theluckystrike/per-diem

by theluckystrike · remote · local (mcpb) · no sign-in to list tools · v0.22.6 · published by GitHub user theluckystrike

Daily travel allowances from bundled public rate tables: Poland, HMRC and GSA CONUS.

Deletes · 1Final · 1Changes · 4

Compare Registry entry

9 tools: 1 can delete or cancel things, 1 do something that can't be undone, 4 change things and 3 only read.

Scanned Oct 21, 2026

Deletes or cancels1Claude Code: deny: see these tools
Can't be undone1Claude Code: ask: see these tools
Changes things4Claude Code: ask: see these tools
Only reads3Claude Code: allow: see these tools

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http per-diem https://mcp.zovo.one/mcp/per-diem --header 'Authorization: <your-authorization>'

Findings

Matches of fixed checks, with the text they matched.

2 warn

Warnperdiem_rates
The server marks "perdiem_rates" as not read-only (readOnlyHint: false), and its words say it reads.
Matched text
annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}; The description's first verb is "list": a word for reading.
What this check looks for
Warnperdiem_report
The server marks "perdiem_report" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.
What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

9 tools

Deletes or cancels 1Removes, cancels or revokes something.Claude Code: deny

trip_deleteDelete one saved trip and free the free-tier slot it held that month.No findings
Why it is in this group
- The name "trip_delete" says "delete": a word for removing or ending something.
- The server marks it destructive (destructiveHint: true).
Description, as the server wrote it
Delete one saved trip and free the free-tier slot it held that month. A trip that has been exported or has an expense booked against it is refused with the blocker named, and nothing is written. Free and unlimited.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: true
- idempotentHint: false
- openWorldHint: false

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

perdiem_reportTotal saved trips per scheme and calendar month, bucketed by start date: trips, days, subsistence and lodging, each in the scheme's own currency, with the trip ids behind every fig…1 finding
Why it is in this group
- The input addresses people (input.to): what it sends cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "perdiem_report" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.
  What this check looks for
Description, as the server wrote it
Total saved trips per scheme and calendar month, bucketed by start date: trips, days, subsistence and lodging, each in the scheme's own currency, with the trip ids behind every figure. Pro.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Changes things 4Creates or changes something that can be changed back.Claude Code: ask

license_activateTurn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle.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
Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
perdiem_calcCalculate the daily travel allowance for one trip: the amount per day and the total in the scheme's currency, with the partial-day fraction and the meal deductions the scheme's own…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
Calculate the daily travel allowance for one trip: the amount per day and the total in the scheme's currency, with the partial-day fraction and the meal deductions the scheme's own rule applies. Free and unlimited.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
perdiem_ratesList a scheme's bundled daily allowance rates with the authority, instrument, source URL and effective date they came from.1 finding
Why it is in this group
- The description's first verb is "list": a word for reading.
- The server marks it as not read-only (readOnlyHint: false).
Findings
- Warn
  The server marks "perdiem_rates" as not read-only (readOnlyHint: false), and its words say it reads.
  Matched text
  annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}; The description's first verb is "list": a word for reading.
  What this check looks for
Description, as the server wrote it
List a scheme's bundled daily allowance rates with the authority, instrument, source URL and effective date they came from. Filter by country or city. Free and unlimited.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
trip_recordCalculate a trip and save it under a name, traveller taken from the shared business profile; returns the TRIP-YYYY-NNNN id.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
Calculate a trip and save it under a name, traveller taken from the shared business profile; returns the TRIP-YYYY-NNNN id. An identical record is refused and named, spending no slot. Free: 5 trips a calendar month.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false

Only reads 3Looks things up and changes nothing.Claude Code: allow

license_statusReport this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL.No findings
Why it is in this group
- The name "license_status" says "status": a word for reading.
Description, as the server wrote it
Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
trip_exportReturn the exact expense_add arguments for a saved trip: one payload for subsistence and, with split_lodging, one for lodging.No findings
Why it is in this group
- The description's first verb is "return": a word for reading.
Description, as the server wrote it
Return the exact expense_add arguments for a saved trip: one payload for subsistence and, with split_lodging, one for lodging. It writes nothing in the expense-tracker server; only mark_exported changes this trip. Pro.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
trip_listList saved trips with the scheme, destination, dates and total on each, and a total per currency.No findings
Why it is in this group
- The name "trip_list" says "list": a word for reading.
Description, as the server wrote it
List saved trips with the scheme, destination, dates and total on each, and a total per currency. Filter by scheme, destination, traveller, project and start date range. Free and unlimited.
Annotations the server declares
- 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.

Install

Pinned to version 0.22.6. Values in angle brackets are yours to fill in.

claude mcp add --transport http per-diem https://mcp.zovo.one/mcp/per-diem --header 'Authorization: <your-authorization>'

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__per-diem__trip_list",
      "mcp__per-diem__trip_export",
      "mcp__per-diem__license_status"
    ],
    "ask": [
      "mcp__per-diem__perdiem_rates",
      "mcp__per-diem__perdiem_calc",
      "mcp__per-diem__trip_record",
      "mcp__per-diem__perdiem_report",
      "mcp__per-diem__license_activate"
    ],
    "deny": [
      "mcp__per-diem__trip_delete"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as per-diem. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.theluckystrike/per-diem/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Anlyon alternative

6 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 →

Compare with other servers for the same product.

Source: MCP Registry · repository. Synced Oct 21, 2026, 18:50 UTC.

For agents: Markdown · JSON · report this listing