0DTE options data API

0DTE Options Data API for same-day SPY, QQQ, quote, and fill workflows

CuteMarkets supports short-dated options workflows by pairing listed same-day expiration checks with chain snapshots, contract snapshots, quote history, trade history, Greeks, IV, open interest, and spread context.

Quick answer

A 0DTE options data workflow should first confirm that today is a listed expiration for the underlying. After that, request the same-day chain, filter by delta, spread, open interest, IV, and quote timestamp, then drill into quotes and trades before making fill assumptions.

Get your free API key Read the docs See pricing

Real-time dataHistorical market dataQuotes & tradesAggregates & indicators

Why teams use it

What 0DTE options data workflows need

Listed same-day expirations

Check the actual expiration list before requesting a same-day chain for SPY, QQQ, IWM, or another active underlying.

Quote freshness and spread

Inspect bid/ask timestamp, spread, and quote size before using midpoint assumptions in a fast intraday workflow.

Greeks and IV in context

Read delta, gamma, theta, vega, and implied volatility next to price, open interest, and contract metadata.

Open interest and volume filters

Rank short-dated contracts by participation before requesting deeper quote or trade history.

Single-contract drilldowns

Fetch one selected 0DTE contract with latest pricing, risk, quote, trade, and underlying context.

Fill-quality evidence

Pair quote history with trade prints when testing fast entries, exits, stops, and spread-sensitive strategies.

0DTE workflow map

How to keep a 0DTE data workflow from turning into a stale-chain shortcut

Same-day options pages need sharper copy than generic options API pages because the failure modes are different: invalid expirations, stale quotes, wide spreads, and contract selection that changes quickly intraday.

Factor	Page-specific guidance	API implementation
Date validation	Start from the listed-expiration endpoint and confirm the same-day date exists for the underlying.	Fetch `/v1/tickers/expirations/{ticker}/`, then enable the chain request only when today appears in the returned dates.
Contract selection	Use chain fields together: delta, gamma, theta, IV, open interest, volume, bid, ask, and quote timestamp.	Request the same-day chain, filter candidates, and preserve the OCC ticker for quote, trade, snapshot, or aggregate joins.
Execution realism	A 0DTE model is fragile if it treats midpoint as always executable or uses last price as the fill price.	Pull quote history around the entry window and compare modeled fills with observed bid/ask and trade prints.
Liquidity rejects	Same-day contracts can look active in aggregate while still failing a specific entry window.	Reject or flag contracts with stale quotes, wide spreads, missing bid/ask, low size, poor open interest, or no recent prints near entry.
Risk display	Gamma and theta can change quickly near expiration, so dashboards should keep pricing, Greeks, and liquidity together.	Use chain snapshots for breadth, contract snapshots for selected legs, and quotes/trades for audit trails.

Use cases

What you can build with this options data API

0DTE scanners

Filter same-day chains by delta, spread, open interest, IV, volume, and recent quote state before selecting contracts.

Risk dashboards

Show gamma, theta, expiration concentration, and liquidity state for contracts that expire today.

Execution checks

Compare modeled fills against quote windows and recent prints instead of relying on last price alone.

Expiry-aware UIs

Disable invalid same-day dates by asking the expiration endpoint first, then enabling only listed dates.

Developer examples

Two code paths teams usually need first

same-day expiration then chain

curl "https://api.cutemarkets.com/v1/tickers/expirations/SPY/" \
  -H "Authorization: Bearer YOUR_API_KEY"

curl "https://api.cutemarkets.com/v1/options/chain/SPY/?expiration_date=2026-04-17&limit=100" \
  -H "Authorization: Bearer YOUR_API_KEY"

0dte quote window

curl "https://api.cutemarkets.com/v1/options/quotes/O:SPY260417C00500000/?timestamp.gte=2026-04-17T13:30:00Z&timestamp.lt=2026-04-17T20:00:00Z&limit=500" \
  -H "Authorization: Bearer YOUR_API_KEY"

Evaluate and compare

Why chain snapshots alone are not enough

Focused endpoint pages are useful because most teams do not evaluate an options data API in the abstract. They evaluate one workflow first, then expand into chains, contracts, quotes, trades, and expirations.

Expiration calendar

Use the current weekly and monthly calendar before validating the listed date by ticker.

SPY options data API

Build SPY-specific chains, expirations, quotes, trades, Greeks, and OI workflows.

Options chain API

Use chain snapshots as the first surface for same-day contract scanning.

Historical quotes API

Use bid/ask history to test 0DTE execution realism and spread sensitivity.

Endpoint coverage matrix

Map 0DTE workflows to chains, snapshots, quotes, trades, Greeks, and OI.

Docs to open next

Relevant API docs

Expirations docs

Confirm listed same-day expirations before requesting a chain.

Option Chain docs

Inspect full-chain snapshots with Greeks, IV, open interest, quotes, and trades.

Quotes docs

Review NBBO-style quote history for spread analysis and execution-quality filters.

Tutorials and research

Backtest options without stale contracts

See why contract discovery with historical dates matters before a backtest is trusted.

Why option quotes beat last price

Understand bid/ask context, last-sale gaps, and quote-aware research workflows.

Quote-aware options fills

A research-to-product bridge from the CuteMarkets backtesting work.

FAQ

Common questions about this options data API

Does a 0DTE workflow start from the chain or the expiration list?

Start from the expiration list. Once you know the same-day date is listed for the underlying, request the chain and then drill into quotes, trades, or snapshots for selected contracts.

Does CuteMarkets provide both real-time and historical options data?

Yes. CuteMarkets supports real-time snapshots and historical workflows across contracts, trades, quotes, aggregates, and expirations, with plan-specific live or delayed access.

Do you provide quotes, trades, and historical contracts?

Yes. The platform includes contracts, chain snapshots, contract snapshots, trade history, quote history, aggregates, and expiration lookups for U.S.-listed options.

Do you provide the earnings calendar too?

CuteMarkets provides the options data layer. Earnings timing should come from a dedicated earnings calendar source that you combine with the options data.

Build 0DTE tools with expiry validation first

Fetch listed expirations, request the same-day chain, then use quotes and trades to keep fast workflows grounded in observable markets.