Who it is for
Quantitative analysts and developers who would otherwise write code against a market data API.
Overview
Massive routes questions to a market data API covering US equities and ETFs, listed options, futures, indices, foreign exchange, and crypto. Real-time and historical requests are both in scope, down to tick-level trades and quotes, OHLC bars, and market snapshots.
Options coverage takes in chains, prices, open interest, and history across the listed US market. Futures contracts, index values, currency pairs, and crypto prices follow the same pattern of current and historical access.
Beyond price series there are company fundamentals and financials, dividends and splits, market news, market status, and calculated indicators such as SMA, EMA, MACD, and RSI. Requests are phrased in plain language, and the data is described as licensed and exchange-sourced. The stated audience is traders, quants, analysts, and developers.
Quantitative analysts and developers who would otherwise write code against a market data API.
One connector spans equities, options, futures, indices, forex, and crypto instead of a single asset class.
Availability
Massive.com, Inc. ships this on both marketplaces: Massive is listed in the Claude connectors directory and in the ChatGPT apps directory, under the same publisher domain.
Only 392 of the 3,150 products in this directory are listed in both marketplaces. One MCP server can serve both surfaces; what differs is each platform's listing and review process.
ChatGPT listing
Claude listing
Massive publishes 4 tools to Claude, a deliberately narrow surface; only 17.2% of the 1,253 Claude-listed connectors expose fewer.
The median Claude-listed connector filed under Developer Tools publishes 13, so this one sits 9 tools below its bucket's median, 72nd of 95.
It falls in the 4-6 tools band, which holds 16.2% of the Claude directory.
Massive publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally.
Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there.
https://mcp.massive.com/ Massive is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality.
In the publisher's words
Stocks, options & indices market data via Massive.com financial data API. Access real-time and historical prices, quotes, trades, and aggregates for equities, options contracts, ETFs, FX, crypto, futures, and more. Massive brings institutional-grade market data directly into Claude. Stocks & equities: Real-time stock prices, historical stock data, tick-level trades and quotes, OHLC aggregates and candlestick bars, market snapshots, and stock ticker reference data for all US equities and ETFs, sourced from all US exchanges. Options: Options contracts data including options chains, options prices, quotes, trades, open interest, and historical options data across the full US listed options market. Futures: Futures market data including futures contracts, futures prices, trades, quotes, and historical futures data across major products. Indices: Real-time and historical index data including index values and aggregates for major market indices. Forex & crypto: Currency pairs, exchange rates, crypto prices, and historical FX and cryptocurrency market data. Beyond prices, pull company fundamentals and financials, corporate actions like dividends and stock splits, market news, technical indicators (SMA, EMA, MACD, RSI), and market status. Ask Claude natural-language questions — "show me NVDA's opening cross" or "chart AAPL's daily bars this quarter" — and get answers backed by licensed, exchange-sourced market data. Built for traders, quants, analysts, and developers who need accurate stock market data, equities data, and multi-asset market data inside Claude.
Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it.
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This is an independent catalogue entry compiled by Node8 from Massive's public marketplace listings as they stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Massive.com, Inc., and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.