Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer
Pricing Time Machine
Overview
Description from the maker (original English)
How any SaaS pricing page changed over the years, from the Wayback Machine. No API keys.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new↓ 49/wk · ★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
You need
- PyPIPython’s uv installed (for the uvx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"pricing-time-machine": {
"command": "uvx",
"args": [
"pricing-time-machine-mcp"
]
}
}
}Run this in your terminal
claude mcp add pricing-time-machine -- uvx pricing-time-machine-mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"pricing-time-machine": {
"command": "uvx",
"args": [
"pricing-time-machine-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"pricing-time-machine": {
"type": "stdio",
"command": "uvx",
"args": [
"pricing-time-machine-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account alialtunar, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Otheri
- More stars than 0% of the other 18477 servers in this category
- Published to the registry more recently than 55% of the other 18477 servers in this category
- Basic checks equal to or better than 100% of the other 18477 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Pricing Time Machine safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 38 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Readfirst
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud✓ desktopcommander.app
Readfirst
What to read and check before changing a file: project rules, risks, checks and tests per file.
Runs on your computer
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
pricing-time-machine-mcp
See how any SaaS pricing page changed over the years. An MCP server that reads archived copies of pricing pages from the Wayback Machine and pulls out the plans and prices, so Claude (or any MCP client) can tell you when a competitor raised prices, renamed plans or dropped a free tier.
No API keys. No scraping of live sites. One line to install.
You: How did Notion's pricing change since 2022?Claude: [compare_pricing → notion.so/pricing, 2022-03 vs latest] • Personal Pro ($4/mo billed yearly) is gone; the cheapest paid plan is now Plus at $10 per member/month. • Team ($8/user/mo) became Business at $20 per member/month: 2.5×. • Free is still $0.
<sub>Summarized from real tool output: archived copies of 31 Mar 2022 and 7 Sep 2026.</sub>Why
| You want to know | Without it | With pricing-time-machine |
|---|---|---|
| When a competitor raised prices | Click through dozens of Wayback snapshots by hand | pricing_timeline lists price periods and every change |
| What their plans looked like in 2021 | Find a snapshot, read the page | pricing_at returns prices with plan names and billing hints |
| How a whole market moved | Days of spreadsheet work | compare_competitors puts 2-8 pricing pages side by side at any date |
How it works
flowchart LRC[Claude / MCP client] -->|tool call| S[pricing-time-machine-mcp] S --> I[Wayback CDX index: which months were archived] S --> W[Archived page closest to a date] W --> X[Extract prices: amount, currency, /mo /yr, per user, plan guess, context] X -->|compact table + page text around prices| C
The server does the deterministic part (finding snapshots, extracting prices, grouping periods). The model does the interpretation: which price belongs to which plan and what a change means. Archived pages never change, so they are cached on disk (~/.cache/pricing-time-machine).
Install
Requires uv.
Claude Code
claude mcp add pricing-time-machine -- uvx pricing-time-machine-mcpClaude Desktop / Cursor (claude_desktop_config.json / .cursor/mcp.json)
{"mcpServers": { "pricing-time-machine": { "command": "uvx", "args": ["pricing-time-machine-mcp"] } } }
Tools
| Tool | What it does |
|---|---|
pricing_timeline | Reads N archived copies across the years, groups identical prices into periods, lists what was added/removed |
pricing_at | Prices on the page closest to a date, with plan guess, billing hints, context and the page text around them |
compare_pricing | One page at two dates: both price tables plus added/removed prices |
compare_competitors | 2–8 pricing pages side by side at the same date |
pricing_snapshots | Which months/years have an archived copy |
Prompts: pricing_history_report (one company, the full story with dates), competitor_pricing (a market then vs now).
Dates can be 2021, 2021-06, 2021-06-15 or latest; the closest archived copy is used and its date is always shown.
Try these
- "How did Slack's pricing change since 2016? Show every price increase in %."
- "Compare the pricing of Notion, Coda and ClickUp today and in 2021."
- "What did Figma charge for Professional in 2019?"
- "Run pricing_history_report for linear.app/pricing."
Limits (set by the source)
- Only pages the Wayback Machine archived. Most popular pricing pages have monthly copies going back years.
- Pages that draw prices with JavaScript are empty in the archive; the server says so and you can try a nearby date.
- Plan names are guesses from nearby headings; the context column and page text let the model check them.
- archive.org is slow (10–30 s per page) and sometimes briefly offline; the server retries with backoff and caches everything it reads.
Part of the keyless MCP series
Open-source MCP servers that answer one market question each, with public data and no API keys.
| Server | Question it answers |
|---|---|
| review-miner-mcp | What do users hate about competitor apps and games? (App Store + Steam reviews) |
| pricing-time-machine-mcp (this one) | How did a SaaS pricing page change over the years? (Wayback Machine) |
| hn-hiring-trends-mcp | Which skills are tech companies hiring for, and which are rising? (HN Who is hiring) |
| model-price-radar-mcp | What does each LLM cost, and did it get cheaper? (OpenRouter + price history) |
| launch-detector-mcp | What is a company about to launch? (certificate transparency logs) |
Development
uv sync --extra devuv run pytest # offline tests with a mocked Wayback Machine uv run python scripts/smoke_live.py # live check against archive.org (1-3 min) uv run --with rich python scripts/demo.py notion.so/pricing 2022-03 # terminal demo (vhs docs/demo.tape records the GIF) npx @modelcontextprotocol/inspector uv run pricing-time-machine-mcp # click-through UI
MIT © Ali Altunar