Rack Rates
dev.rackrates/ledgerrackrates.devstreamable-httpv0.1.0Scanned
Published list prices of compute (VPS, GPU hours, LLM tokens, media), archived daily. Read-only.
7 tools: 2 change things and 5 only read.
- Reads private data · 0
- Reads text others write · 1
- Can send data out · 0
- No findings
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.
7 tools
Changes things 2Claude Code: ask
cheapest_for_specCheapest active SKUs meeting a minimum spec, ranked by list price only (no sponsorship, no affiliate weighting).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 Cheapest active SKUs meeting a minimum spec, ranked by list price only (no sponsorship, no affiliate weighting). category vps|gpu|llm; vcpu, ram_gb, disk_gb minimums; gpu model substring (e.g. H100); region 'eu' for EU-deployable; currency USD|EUR for the ranking. Each row carries verified_at, stale and source_url.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Cheapest for a spec
estimate_costItemised cost of a usage profile at the SKU's current list price: tokens (input/output/cached) for LLM SKUs, hours/months for instances.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 Itemised cost of a usage profile at the SKU's current list price: tokens (input/output/cached) for LLM SKUs, hours/months for instances. Returns line items with the rates used, native, USD and EUR totals, verified_at and source_url. Pure arithmetic on stored prices; excl. VAT unless the result says otherwise.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Estimate cost
Only reads 5Show 5 read-only tools
get_historyPrice change points of a SKU over the last N days (default 90): each row is when a price started to hold, with USD/EUR and the FX rate used.No findings
Why it is in this group
- The name "get_history" says "get": a word for reading.
Description, as the server wrote it Price change points of a SKU over the last N days (default 90): each row is when a price started to hold, with USD/EUR and the FX rate used. Rows are change points, not daily samples. Returns an error object for an unknown id.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Get price history
get_indexA named daily index series (e.g.No findings
Why it is in this group
- The name "get_index" says "get": a word for reading.
Description, as the server wrote it A named daily index series (e.g. eu-vps-2vcpu-4gb-floor, frontier-token-input-floor, h100-hour-floor) with its latest value, the number of constituents and the constituents themselves, so the value can be recomputed. Omit series to list all series with their latest values.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Get index series
get_priceCurrent list price of one SKU (id like vps/ovhcloud/vps-2025-model1 or llm/anthropic/claude-sonnet-5-5) with all secondary prices, USD/EUR equivalents, spec, source URL, verified_a…Reads text others writeNo findings
Why it is in this group
- The name "get_price" says "get": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
Description, as the server wrote it Current list price of one SKU (id like vps/ovhcloud/vps-2025-model1 or llm/anthropic/claude-sonnet-5-5) with all secondary prices, USD/EUR equivalents, spec, source URL, verified_at, a stale flag that is true when the source's latest fetch failed (the price shown is then the last verified one), and other listings of the same model. Returns an error object for an unknown id.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Get current price
list_changesDated price changes, new SKUs, delistings and spec changes, newest first.No findings
Why it is in this group
- The name "list_changes" says "list": a word for reading.
Description, as the server wrote it Dated price changes, new SKUs, delistings and spec changes, newest first. Each row says when the change was first seen and the previous good snapshot it is measured against, plus the source id. Filter by since (ISO date), kind, category and provider.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: List price changes
search_skusFind VPS plans, GPU instances or LLM models by name/id substring, category (vps|gpu|llm) and provider.No findings
Why it is in this group
- The name "search_skus" says "search": a word for reading.
Description, as the server wrote it Find VPS plans, GPU instances or LLM models by name/id substring, category (vps|gpu|llm) and provider. Active SKUs only. Returns each match's current list price, unit and currency, verified_at, stale flag and source_url. Read-only; reads the ledger's own daily archive, nothing is fetched live.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Search SKUs
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 write1
- 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 0.1.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http ledger https://rackrates.dev/mcpclaude mcp add --transport http ledger https://rackrates.dev/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__ledger__search_skus",
"mcp__ledger__get_price",
"mcp__ledger__get_history",
"mcp__ledger__list_changes",
"mcp__ledger__get_index"
],
"ask": [
"mcp__ledger__cheapest_for_spec",
"mcp__ledger__estimate_cost"
],
"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 ledger. Review it before you use it.
Capability tags behind 1 rule
- mcp__ledger__get_price 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/dev.rackrates/ledger/verify?hash=40c18240fbcea55b8d0d549f5d7e98f20dcb00783338313f87e64f540e114fb5" | jq -e '.changed == false'Pinned hash 40c18240fbce, from Oct 23, 2026, 23:17 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/dev.rackrates/ledger/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/dev.rackrates/ledger)Source: MCP Registry. Synced Oct 23, 2026, 23:17 UTC.