celineycn/quantdata-plugin

Measured market statistics for index futures and equities, packaged so an AI agent can use
them and — more importantly — report them honestly. Installs natively into **Claude Code**
(plugin), **Codex CLI** (plugin marketplace) and **Gemini CLI** (extension), all from this
one repository.
| Skill | What the agent gains | Key needed |
|---|---|---|
| quantdata-daily-bias | Rolling Brooks price-action events with measured outcome rates, a calibrated day-type probability read for the US day session, a plain-arithmetic shape description of the bars already printed, and the measured verdicts on famous price-action claims | Free email key or paid key |
| quantdata-weis-wave | Volume-price wave structure and five Weis events, each with its measured win rate | Free email key or paid key |
| quantdata-max-pain | Options max pain, open-interest walls, put/call ratio, estimated dealer gamma exposure | Free email key or paid key; public pages need none |
The honest summary of what you get: measured edges of 52–56%, published together with the
places the models fail. There is a section below on exactly that, and it is not buried.
> **Which Quant Data this is.** This project is Quant Data at **quantdata.uk** (API host
> api.quantdata.uk, MCP endpoint https://api.quantdata.uk/mcp, registry name
> uk.quantdata/quantdata). It is not affiliated with quantdata.us, an unrelated product
> with a similar name and a different API. Keys are not interchangeable between the two.
---
Install
Claude Code
Codex CLI
The same repository doubles as a Codex plugin marketplace:
Any other MCP client (Claude Desktop, ChatGPT, Cursor, VS Code, Zed)
The same four endpoints are a **remote MCP server**, together with an access tool that can email
a free API key. Nothing to install — point the client at:
Streamable HTTP. With no key, one anonymous market-tool response is available per source per UTC
day as a first look. The agent can then call quantdata_request_free_api_key with an email
address; the free qd_ key is sent only to that inbox, needs no login or card, and gives the
four market tools 10 shared successful calls per UTC day. A stdio bridge ships in
quantdata/mcp/ for clients that can only launch a local command.
Details: quantdata/mcp/README.md.
Gemini CLI
The repository is also a Gemini CLI extension. GEMINI.md carries the three skill bodies
merged into one context file:
Then
Start a new session. You do not invoke a skill by name — just ask:
> Did ES=F just break out of its range, and how often did breakouts like this fail?
> Is the pullback in ES=F happening on low volume?
> Where is max pain for TSLA this Friday?
> Which way is dealer gamma leaning on NVDA?
To check it loaded, ask: *"Which Quant Data skills do you have?"*
Without the plugin system
A skill is just a folder with a SKILL.md in it, so you can also copy them by hand:
Or project-scoped, committed alongside your code, in .claude/skills/.
---
Start free — no login or card
One anonymous API or MCP call can return a complete first-look response per source per UTC day.
For continued evaluation, request a free qd_ key by email:
An MCP-connected agent can call quantdata_request_free_api_key instead. The raw key is never
returned by the POST or MCP result; it is delivered only to the email address. The free key
covers all four endpoints, sharing 10 successful calls per UTC day, and needs no account,
password or card.
marketing_opt_in is optional and defaults to false. It is separate from key delivery. An
agent must set it to true only after the owner of that email address explicitly asks for
occasional product updates. Even then, the request records a pending preference, not an active
subscription. The recipient must reply SUBSCRIBE to the key-delivery email to confirm it; no
marketing updates are sent before that confirmation.