Tax Reclaim calculator
eu.taxreclaim/calculatortaxreclaim.eustreamable-httpv1.0.0Scanned
Estimate dividend and interest withholding-tax refunds, treaty rates and filing deadlines.
4 tools: 1 do something that can't be undone, 1 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- 1 finding
Anlyon alternative
2 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.
4 tools
Can't be undone 1Claude Code: ask
estimate_refundEstimate the reclaimable withholding tax on one dividend or interest payment for a source/residence country pair, with the treaty rate, filing form and deadline.1 finding
Why it is in this group
- The name "estimate_refund" says "refund": a word that usually means money moves, which cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
The server marks "estimate_refund" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "estimate_refund" says "refund": a word that usually means money moves, which cannot be taken back.
Description, as the server wrote it Estimate the reclaimable withholding tax on one dividend or interest payment for a source/residence country pair, with the treaty rate, filing form and deadline. Country codes are ISO alpha-2; payment_date is YYYY-MM-DD.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Estimate a refund
Changes things 1Claude Code: ask
estimate_dividendsEstimate the reclaimable withholding tax for a whole dividend history in one call: send either a broker export as csv_text with its broker id, or a list of payments (ISIN, payment_…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 Estimate the reclaimable withholding tax for a whole dividend history in one call: send either a broker export as csv_text with its broker id, or a list of payments (ISIN, payment_date YYYY-MM-DD, gross_amount, currency, optional withheld_amount), max 500. Returns each payment with its source country, treaty rate, reclaimable amount in the residence currency, form and deadline, plus totals per source country. A payment whose source country cannot be resolved is returned as unresolved with no amount; withheld_is_estimated marks a withholding figure estimated from the statutory rate.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Estimate a dividend history
Only reads 2Show 2 read-only tools
get_deadlineGet the withholding-tax reclaim deadline rule for a source country, optionally for a specific residence (treaty partner) country.No findings
Why it is in this group
- The name "get_deadline" says "get": a word for reading.
Description, as the server wrote it Get the withholding-tax reclaim deadline rule for a source country, optionally for a specific residence (treaty partner) country.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: Get a filing deadline
list_countriesList supported source and residence countries, domestic withholding rates and the payment years that may still be reclaimable.No findings
Why it is in this group
- The name "list_countries" says "list": a word for reading.
Description, as the server wrote it List supported source and residence countries, domestic withholding rates and the payment years that may still be reclaimable.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- title: List supported countries
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.
- Warnestimate_refund
The server marks "estimate_refund" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "estimate_refund" says "refund": a word that usually means money moves, which cannot be taken back.
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 calculator https://api.taxreclaim.eu/api/mcpclaude mcp add --transport http calculator https://api.taxreclaim.eu/api/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__calculator__list_countries",
"mcp__calculator__get_deadline"
],
"ask": [
"mcp__calculator__estimate_refund",
"mcp__calculator__estimate_dividends"
],
"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 calculator. 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/eu.taxreclaim/calculator/verify?hash=3d403f39f96c58526fe8e601c8ed4883ca1189de9ba331e34ec774000b4c6401" | jq -e '.changed == false'Pinned hash 3d403f39f96c, from Oct 25, 2026, 21:17 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/eu.taxreclaim/calculator/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/eu.taxreclaim/calculator)Source: MCP Registry. Synced Oct 25, 2026, 21:17 UTC.