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Greenslips - NSW green slip price comparison

au.com.greenslips/ctp-pricesgreenslips.com.austreamable-httpv1.0.0Scanned

Compare NSW green slip (CTP) prices of all six insurers with SIRA's price check - free, no sign-up.

2 tools: 1 change things and 1 only read.

Tools: 0 delete, 0 irreversible, 1 write, 1 read.
  • Reads private data · 0
  • Reads text others write · 2
  • Can send data out · 0
  • 1 finding

Tools listed without sign-in. Remote posture

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 →
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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.

2 tools

Changes things 1Claude Code: ask
  • get_green_slip_resultOpen a saved NSW green slip price comparison from greenslips.com.au (or compare_ctp_prices) by its Greenslips reference - the 8-character code shown with a result and at the end of…Reads text others write1 finding

    Why it is in this group

    • The name "get_green_slip_result" says "get": a word for reading.
    • The description's first verb is "open": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe description's first sentence says "open" and "html": it reads web pages, which anyone can write.

    Findings

    • Warn

      The server marks "get_green_slip_result" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "get_green_slip_result" says "get": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Open a saved NSW green slip price comparison from greenslips.com.au (or compare_ctp_prices) by its Greenslips reference - the 8-character code shown with a result and at the end of its link (calculator.html?load-result=...). Use it when someone gives a reference or a result link, to see those prices again, buy or ask about them. It returns the prices as they were calculated, with that date, each insurer's link and the full result link - not today's prices: for those, compare again with compare_ctp_prices.

    Annotations the server declares

    • title: Open a saved green slip result
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 1Show 1 read-only tool
  • compare_ctp_pricesCompare NSW green slip (CTP, compulsory third party insurance) prices of all six NSW insurers - the regulated prices from SIRA's price check, the same as the greenslips.com.au calc…Reads text others writeNo findings

    Why it is in this group

    • The name "compare_ctp_prices" says "compare": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Compare NSW green slip (CTP, compulsory third party insurance) prices of all six NSW insurers - the regulated prices from SIRA's price check, the same as the greenslips.com.au calculator. Use it when someone needs a green slip: registration (rego) renewal due, buying a vehicle or bringing one to NSW, or checking whether they pay too much. Call it with the answers you have: until every needed answer is given it returns the remaining questions in order, with their options - ask the user those (never guess), then call again with all answers so far. When complete it returns each insurer's 12 and 6 month price with a link, and a link to the full result on greenslips.com.au.

    Annotations the server declares

    • title: Compare NSW green slip prices
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: 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.

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 outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write2
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.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Nov 2, 2026, 00:18 UTC, unchanged since Nov 2, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
1
Protocol version
2025-06-18
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
not observed
RFC 9728 protected resource metadata
not observed
Authorization servers
not observed
Legacy HTTP+SSE transport
no
Dynamic client registration
not observed
Client ID metadata documents
not observed
  • WarnThe whole server

    The endpoint served tools/list without credentials, and the list has 1 tool that changes things (1 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://mcp.greenslips.com.au/: tools/list returned 2 tools to an anonymous client, including get_green_slip_result (write)

    What this check looks for

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnget_green_slip_result

    The server marks "get_green_slip_result" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "get_green_slip_result" says "get": a word for reading.

    What this check looks for

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.

All changes to this server

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http ctp-prices https://mcp.greenslips.com.au/
claude mcp add --transport http ctp-prices https://mcp.greenslips.com.au/

Run 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.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__ctp-prices__compare_ctp_prices"
    ],
    "ask": [
      "mcp__ctp-prices__get_green_slip_result"
    ],
    "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 ctp-prices. Review it before you use it.

Capability tags behind 2 rules
  • mcp__ctp-prices__compare_ctp_prices untrusted-input
  • mcp__ctp-prices__get_green_slip_result untrusted-input

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/au.com.greenslips/ctp-prices/verify?hash=1ee8f8d409ee002a6a669cea72d6e6fd4f2b6355eb0577e9e28a6d6496cc09ac" | jq -e '.changed == false'

Pinned hash 1ee8f8d409ee, from Nov 2, 2026, 00:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/au.com.greenslips/ctp-prices/changes.xml

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Badge

anlyon.dev badge for au.com.greenslips/ctp-prices
[![anlyon.dev](https://anlyon.dev/badge/au.com.greenslips/ctp-prices.svg)](https://anlyon.dev/servers/au.com.greenslips/ctp-prices)

Source: MCP Registry. Synced Nov 2, 2026, 00:17 UTC.