What the engine covers

The API and MCP server are in production today, grounding the chat analyst’s market answers. The discovery surface is already public: run curl https://noxint.ai/api/v1 right now, with no key, and the contract answers. Key minting and paid access open in beta after launch; credit packs are rolling out with launch. Launch status tracks exactly what is on.

“Crypto and US equities” is a slogan until it comes with numbers. These are the numbers, and every one of them was read off the live engine on 2026-07-16: asset counts and history depth from the coverage operation, venues and baselines from the payloads themselves. The universe moves as markets do; coverage is free to call and always current.

Crypto

The crypto plane has three classes:

Core is the derivatives-grade universe: 489 assets on the day of capture, listed exhaustively by one free call. Core assets carry the full domain set: price, funding, open interest, order flow, liquidations, order-book liquidity, technicals, market structure, history, and the rank screener.
Listed tokens are the long tail with live markets: price, technicals, structure, and history, without the derivatives domains.
Contract tokens are addressable by contract: crypto:eip155-<chainId>:<address> on EVM chains and crypto:solana:<mint> on Solana. If it trades, it resolves; what cannot be proved about it is refused, not padded.

Derivatives facts are cross-venue. The consensus set observed live: Binance, Bybit, OKX, and Hyperliquid, with per-venue rates, quotes, and volumes in by_venue blocks and the spread between venues served as its own percentile-ranked fact. Percentile context is computed against each asset’s own baseline, stated in every response: 90 days at 1-hour cadence for price and flow (n=2160), 90 days at 8-hour cadence for funding (n=180), 90 days at 4-hour cadence for structure and technicals (n=539). Longer windows appear as pctl_1y where history supports them.

US equities

Equity identity is keyed to the SEC: eq:<10-digit CIK>:<mnemonic>, which means the universe is defined by filings, not by an index membership list. Resolution returns exchange-listed names alongside OTC filers.

Filed facts: financials serves statements as filed, by period, as exact decimal strings with the form, accession number, and filing date of every period. fundamentals is the TTM snapshot, valuation and growth the derived ratios, each stamped with filings_indexed_through so you know exactly how fresh the filing index is.
The event stream: filings, insider (Form 4) trades, dividends, and splits, with a 90-day insider summary.
Ownership: 13F holders with per-manager report periods, a periods_behind staleness count, and stale filings quarantined out of aggregates by name.
Market data: daily price, returns, technicals, and history. Equity quotes are end-of-day; nothing here pretends to be a real-time equity tape.

History depth

From the live per-asset coverage detail for crypto:bitcoin:

{
  "series_depth": { "15m": "90d", "1h": "90d", "4h": "90d-agg", "1d": "365d" },
  "universe_membership": "current"
}

Intraday bars go back 90 days, daily bars a year. Filed equity history goes as deep as the filings: financials serves up to 20 periods per request.

Ask the engine, not the docs

Coverage is itself an operation, and it costs nothing:

# the whole core tier, exhaustively
curl -H 'Authorization: Bearer nx_your_key' \
  'https://noxint.ai/api/v1/coverage?plane=crypto&tier=core&limit=500'

# everything one asset supports, domain by domain
curl -H 'Authorization: Bearer nx_your_key' \
  'https://noxint.ai/api/v1/coverage?id=crypto:bitcoin'

The per-asset form returns a covered/not-covered verdict for every operation with a typed reason where the answer is no (wrong_plane, not_asset_scoped), so an agent can plan a workload without burning a credit to find a refusal.

​Crypto

​US equities

​History depth

​Ask the engine, not the docs

Crypto

US equities

History depth

Ask the engine, not the docs