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noxstock is a read-only API for compact US-listed stock and ETF context. The same data is available over REST and over a hosted MCP server, and every response is JSON shaped to be parsed by an app or an agent without endpoint-specific guessing. Reach for it when you need a fast answer to: what is this symbol, how is it trading, how expensive is it, what do its filings or insiders say, and how fresh is that data.

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Start here

Pick the surface that matches how you call APIs. Both authenticate with the same nxs_ key in the X-API-Key header.

REST quickstart

Create a key, call GET /v2/snapshot?symbol=AAPL, and read the response. Five minutes from zero to a parsed snapshot.

Hosted MCP

Point an MCP client at https://api.noxstock.com/mcp and call the read-only noxstock_* tools that wrap the same routes.

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Coverage

5,119 US-listed symbols on NYSE and NASDAQ: 5,062 stocks and 57 ETFs. Every stock resolves to an SEC filer; daily price history runs back up to 5 years. Some data families do not apply to every symbol, so check coverage and gaps before you commit to a route.

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What to call for what

Start narrow with /v2/search, /v2/coverage, and /v2/snapshot, then add depth only when the question needs it. Routes beyond the four Free ones need Starter or Builder. The endpoint guide maps jobs to the smallest route set.
NeedRoutes
Discovery and events/v2/search, /v2/coverage, /v2/calendar
First-pass context/v2/snapshot, /v2/profile
Valuation and fundamentals/v2/valuation, /v2/fundamentals, /v2/earnings, /v2/dividends
Price behavior/v2/technicals, /v2/price-action, /v2/history, /v2/compare
SEC and insider context/v2/filings, /v2/filings/{accession}, /v2/filings/{accession}/section/{name}, /v2/insider
Free keys can call /v2/search, /v2/coverage, /v2/snapshot, and /v2/valuation. Starter and Builder reach every route. See plans and limits for rate limits and quotas.

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What it is not

noxstock does not trade or execute, and it is not:
  • a real-time exchange-grade market data feed
  • options, L2/order-book, or global-equities coverage
  • analyst consensus, price targets, transcripts, news, or ownership/13F data
  • a screener or full cross-symbol database
  • investment advice

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Next step

New to the API? Start with the REST quickstart. If you already know the shape of the data, the API reference lists every route, param, and field.