Wozapi

by woz-api.nl · remote · no sign-in to list tools · v1.0.1 · published by nl.woz-api

WOZ values (official Dutch property valuations) for Dutch addresses, one lookup or a whole list.

Changes · 6

Compare Registry entry

9 tools: 6 change things and 3 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things6Claude Code: ask: see these tools
Only reads3Claude Code: allow: see these tools

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

claude mcp add --transport http wozapi https://woz-api.nl/Api/Mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnlookup_woz_value
The server marks "lookup_woz_value" as not read-only (readOnlyHint: false), and its words say it reads.
Matched text
annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "lookup_woz_value" says "lookup": a word for reading.
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

Changes things 6Creates or changes something that can be changed back.Claude Code: ask

add_trial_emailAdds the user's own e-mail address to a trial.No findings
Why it is in this group
- The name "add_trial_email" says "add": a word for a change.
Description, as the server wrote it
Adds the user's own e-mail address to a trial. The trial grows to 10 addresses in total and the user gets a Wozapi account without a password (they log in with a code sent by e-mail). Only use an address the user typed.
Annotations the server declares
- title: E-mailadres aan de proef toevoegen
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
create_credit_payment_linkReturns a page where the user buys Wozapi credits for single lookups and pays with iDEAL.No findings
Why it is in this group
- The name "create_credit_payment_link" says "create": a word for a change.
Description, as the server wrote it
Returns a page where the user buys Wozapi credits for single lookups and pays with iDEAL. This tool moves no money. Works when the user is signed in to Wozapi, with the connected API key, or with a trial_code that has the user's e-mail address.
Annotations the server declares
- title: Betaallink voor credits
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
create_list_payment_linkReturns the page where the user reviews the trial and the price of the list and pays with iDEAL.No findings
Why it is in this group
- The name "create_list_payment_link" says "create": a word for a change.
Description, as the server wrote it
Returns the page where the user reviews the trial and the price of the list and pays with iDEAL. This tool moves no money: payment only happens when the user pays on that page. Optionally stores the user's own e-mail address for delivery of the file and the invoice.
Annotations the server declares
- title: Betaallink voor de lijst
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
lookup_woz_valueReturns the WOZ values of one Dutch address for all available years, with the address as matched.1 finding
Why it is in this group
- The name "lookup_woz_value" says "lookup": a word for reading.
- The server marks it as not read-only (readOnlyHint: false).
Findings
- Warn
  The server marks "lookup_woz_value" as not read-only (readOnlyHint: false), and its words say it reads.
  Matched text
  annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "lookup_woz_value" says "lookup": a word for reading.
  What this check looks for
Description, as the server wrote it
Returns the WOZ values of one Dutch address for all available years, with the address as matched. Costs one trial address or one credit per unique address; the same address again within 7 days, an answer without WOZ values and an error cost nothing. For questions about properties, not to assess or profile people. Needs a trial_code unless the user is signed in to Wozapi or the connection has a Wozapi API key.
Annotations the server declares
- title: WOZ-waarde opvragen
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- readOnlyHint: false
start_address_listStarts WOZ lookups for a whole list of Dutch addresses, for example from a spreadsheet the user shared.No findings
Why it is in this group
- The name "start_address_list" says "start": a word for a change.
Description, as the server wrote it
Starts WOZ lookups for a whole list of Dutch addresses, for example from a spreadsheet the user shared. Runs a free trial on 5 addresses, then gives the price of the full list and a payment page for the user. Returns a list_token for get_address_list. Sending the same list again within an hour returns the same list.
Annotations the server declares
- title: Adreslijst starten
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- readOnlyHint: false
start_trialStarts a free Wozapi trial without an account and returns a trial_code.No findings
Why it is in this group
- The name "start_trial" says "start": a word for a change.
Description, as the server wrote it
Starts a free Wozapi trial without an account and returns a trial_code. The trial covers WOZ value lookups for 5 unique Dutch addresses, or 10 when the user's own e-mail address is given. Pass the trial_code to lookup_woz_value and start_address_list. Call it once per conversation, and not when the user is signed in to Wozapi or the connection already has a Wozapi API key.
Annotations the server declares
- title: Gratis proef starten
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
- readOnlyHint: false

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

get_account_balanceReturns the remaining credits of the user's own Wozapi account.No findings
Why it is in this group
- The name "get_account_balance" says "get": a word for reading.
Description, as the server wrote it
Returns the remaining credits of the user's own Wozapi account. Needs the user to be signed in to Wozapi, or a Wozapi API key on the connection; when neither is there, the client asks the user to sign in first. Read-only and free.
Annotations the server declares
- title: Saldo bekijken
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
get_address_listReturns the status of an address list: trial rows, number of addresses found, price, payment link, progress, and after payment the result rows (at most 50 per call; use offset for …No findings
Why it is in this group
- The name "get_address_list" says "get": a word for reading.
Description, as the server wrote it
Returns the status of an address list: trial rows, number of addresses found, price, payment link, progress, and after payment the result rows (at most 50 per call; use offset for more) and a download link for the Excel file. Can wait up to 20 seconds for the trial or the processing to finish.
Annotations the server declares
- title: Adreslijst bekijken
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
get_pricesReturns Wozapi prices: credits for single lookups by quantity, the price of an address list by size, and the trial terms.No findings
Why it is in this group
- The name "get_prices" says "get": a word for reading.
Description, as the server wrote it
Returns Wozapi prices: credits for single lookups by quantity, the price of an address list by size, and the trial terms. Read-only and free.
Annotations the server declares
- title: Prijzen bekijken
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true

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 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http wozapi https://woz-api.nl/Api/Mcp

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__wozapi__get_account_balance",
      "mcp__wozapi__get_address_list",
      "mcp__wozapi__get_prices"
    ],
    "ask": [
      "mcp__wozapi__create_credit_payment_link",
      "mcp__wozapi__add_trial_email",
      "mcp__wozapi__start_address_list",
      "mcp__wozapi__lookup_woz_value",
      "mcp__wozapi__create_list_payment_link",
      "mcp__wozapi__start_trial"
    ],
    "deny": []
  }
}

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 wozapi. Review it before you use it.

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

https://anlyon.dev/servers/nl.woz-api/wozapi/changes.xml

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Source: MCP Registry. Synced Oct 21, 2026, 18:54 UTC.

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