MCP server

SerialHunt

com.bigballi/serialhunt

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

US bill serial numbers: star note print runs and fancy serial patterns with exact odds.

Working at last checkVerified publisher: bigballi.comAbout 897 tokens per request once connected4 tools

https://bigballi.com/SerialHunt/mcp

At a glance

Type: MCP server
Publisher: bigballi.com (verified by the MCP Registry)
Status: Working at last check
Tools: 4
Token cost: About 897 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http serialhunt https://bigballi.com/SerialHunt/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.serialhunt]
url = "https://bigballi.com/SerialHunt/mcp"

Gemini CLI

{"mcpServers":{"serialhunt":{"httpUrl":"https://bigballi.com/SerialHunt/mcp"}}}

Cursor

{"mcpServers":{"serialhunt":{"url":"https://bigballi.com/SerialHunt/mcp"}}}

VS Code

{"servers":{"serialhunt":{"type":"http","url":"https://bigballi.com/SerialHunt/mcp"}}}

Antigravity

agy mcp add serialhunt https://bigballi.com/SerialHunt/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"serialhunt","server_url":"https://bigballi.com/SerialHunt/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"serialhunt","server_url":"https://bigballi.com/SerialHunt/mcp"}

check_serial ~322 tokens
Whether one US paper money note is worth keeping, from its serial number: the Federal Reserve Bank, the series (worked out from the serial when it is not given), every collector pattern in the eight digits with its exact odds, and for a star (replacement) note the print run it came from with the num
find_star_runs ~328 tokens
The smallest US star note print runs on record, smallest first (top 10), optionally for one denomination, series or Federal Reserve Bank: the notes printed, the rarity band and the serial range to watch for. Runs printed only for uncut collector sheets, which never circulate, are left out unless inc
get_coverage ~138 tokens
Which denominations and series the star note print run figures cover, with the Federal Reserve districts and number of star runs on record for each, the sources, the date of the last update and any known gap.
list_serial_patterns ~109 tokens
The 17 fancy serial number patterns collectors look for on US bills (ladder, solid, radar, repeater, binary, birthday, low serial and the rest): a strict definition, an example, how many of the 100,000,000 possible eight-digit serials match, and the odds.

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