Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
SerialHunt
Overview
Description from the maker (original English)
US bill serial numbers: star note print runs and fancy serial patterns with exact odds.
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
- UsageiNot measured yet★ –
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 in the cloud
- Transport: Streamable HTTP
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://bigballi.com/SerialHunt/mcpRun this in your terminal
claude mcp add --transport http serialhunt https://bigballi.com/SerialHunt/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"serialhunt": {
"url": "https://bigballi.com/SerialHunt/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": {
"serialhunt": {
"type": "http",
"url": "https://bigballi.com/SerialHunt/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.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://bigballi.com/SerialHunt/mcpMenu names can differ slightly by plan and over time.
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
We have not read this server’s tool list yet; we check endpoints in rotation.
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 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified against the domain bigballi.com (the registry checks domain ownership)
- … 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 checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 32683 servers in this category
- Published to the registry more recently than 57% of the other 32683 servers in this category
- Basic checks equal to or better than 100% of the other 32683 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 SerialHunt 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 in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 30 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, MCP Server Autocad Lisp Helper
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated 2 days ago
Install
MCP Server Autocad Lisp Helper
by radwanalmsora
High-precision static analysis and debug server for AutoCAD AutoLISP (.lsp) files.
Runs on your computerUpdated today
Install
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.
SerialHunt for Claude and other MCP clients
Ask an AI assistant whether a US bill is worth keeping and get an answer from government production figures instead of memory: the star note print run a serial came from and how many notes shared it, every fancy pattern in the digits with its exact odds, and the rarest star runs to watch for.
This repository holds:
- the connection details for the SerialHunt remote MCP server at
https://bigballi.com/SerialHunt/mcp, - a Claude plugin that adds that server plus a
paper-money-serialsskill, which teaches Claude how to read the numbers.
The server is run by SerialHunt. Its star note figures come from the Bureau of Engraving and Printing's production reports, through the uspapermoney.info archive for Series 1963 to 2017A, and it updates weekly. The same answers are on the web lookup.
What you can ask
- "I got a $1 bill with serial A 032 12345 ★, Series 2017A. Is it rare?"
- "Is MB 123 45678 C on a $20 a fancy serial number?"
- "Which $2 star notes had the smallest print runs?"
- "What is a radar serial number, and how rare is it?"
Tools
All tools are read-only (readOnlyHint: true) and need no account.
| Tool | What it answers |
|---|---|
check_serial | One note from its serial: the Federal Reserve Bank, the series (worked out from the serial when it can be), every collector pattern in the digits with its odds, and for a star note the print run it came from, the notes printed and the rarity band. |
find_star_runs | The 10 smallest star runs on record, optionally for one denomination, series or Federal Reserve Bank. |
list_serial_patterns | The 17 fancy serial patterns, each strictly defined, with how many of the 100,000,000 possible serials match. |
get_coverage | Which denominations and series the figures cover, the last update and any known gap. |
SerialHunt gives no prices and makes no authenticity claims, on purpose.
Setup
Claude (claude.ai, Desktop, mobile)
Settings → Connectors → Add custom connector, then paste https://bigballi.com/SerialHunt/mcp. No sign-in is needed.
Claude Code
Install the plugin, which adds the server and the paper-money-serials skill:
/plugin marketplace add BigBalli/serialhunt-mcp/plugin install serialhunt@serialhunt
Or add only the server:
claude mcp add --transport http serialhunt https://bigballi.com/SerialHunt/mcpOther MCP clients
Any client that supports remote MCP servers over Streamable HTTP can use https://bigballi.com/SerialHunt/mcp with no credentials. The server speaks protocol versions 2026-07-28, 2025-11-25, 2025-06-18 and 2025-03-26 and answers with JSON (no SSE, no sessions).
Privacy
The server receives the tool name and its arguments (for example a serial number and a denomination), uses them to answer, and does not store them. It never sees your conversation or your account. Full policy: bigballi.com/SerialHunt/privacy.
Support
Email g@bigballi.com, or see bigballi.com/SerialHunt/connect.
License
The contents of this repository are released under the MIT License. The production figures served by the SerialHunt MCP server are not part of this repository.