Options Data API for real-time and historical U.S. options markets
CuteMarkets is an options data API built for developers and systematic traders who need chain snapshots, historical contracts with `as_of`, quote and trade history, aggregates, and expiration data in one consistent surface.
An options data API should let a developer request listed contracts, full chains, Greeks, implied volatility, open interest, quotes, trades, aggregate bars, and expiration dates without stitching several market-data systems together. CuteMarkets exposes those U.S. options objects through REST endpoints and plan-specific live or delayed access.
Why teams use it
What teams actually need from an options data API
Full-chain snapshots
Pull complete option chains with Greeks, implied volatility, open interest, and the latest quote and trade in one request.
Historical contracts with `as_of`
Reconstruct the contract universe that existed on a historical date instead of accidentally backtesting with today’s listings.
Historical quotes and trades
Measure spread quality, execution realism, and option activity using quote and trade history instead of a single static snapshot.
Aggregates and open/close data
Use OHLC bars, VWAP, and single-day open/close endpoints to support analytics, dashboards, and event studies.
Expiration and symbol discovery
Populate expiry pickers and search workflows without stitching together separate reference layers.
Docs-first workflow
Move directly from landing page to docs, pricing, and a free API key without needing to guess which endpoint solves which problem.
Use cases
What you can build with this options data API
Earnings research
Estimate implied moves, reconstruct historical event structures, and filter names by quote and trade quality around earnings windows.
Options chain scanners
Scan live chains by expiry and strike, then rank contracts by liquidity, Greeks, and price response.
Historical backtests
Use contracts with `as_of`, historical quotes, trades, and aggregates to build more causal options backtests.
Alerting and dashboards
Power internal tools with chain views, option pricing context, and expiration workflows from a single API surface.
Developer examples
Two code paths teams usually need first
curl "https://api.cutemarkets.com/v1/options/chain/AAPL/?expiration_date=2026-01-16&limit=25" \
-H "Authorization: Bearer YOUR_API_KEY"curl "https://api.cutemarkets.com/v1/options/contracts/?underlying_ticker=AAPL&as_of=2025-10-29&expiration_date=2025-11-21&limit=25" \
-H "Authorization: Bearer YOUR_API_KEY"Evaluate and compare
Why chain snapshots alone are not enough
A chain snapshot is useful, but it is not the full answer for execution, backtesting, or event studies. Teams evaluating an options data API usually need contracts, quotes, trades, and aggregates together.
Historical options data API
See how historical contracts, quotes, trades, and aggregates fit together for research and backtesting.
Options chain API
Explore the chain-specific workflow for expirations, strike discovery, and liquidity filtering.
Options chain visualizer
Use the interactive chart view to inspect IV smile, spreads, volume, open interest, and strike-level liquidity.
Options backtesting API
Plan historical contracts, quotes, trades, aggregates, and stale-contract prevention.
Options liquidity scanner
Test spread, volume, open-interest, IV, and delta filters against a live chain workflow.
0DTE options data API
Build same-day workflows with listed expirations, chain snapshots, quote freshness, and fills.
Options API Python
Turn chains, contracts, quotes, trades, and expirations into reproducible Python examples.
Best options data APIs
Compare CuteMarkets against other providers on coverage, data objects, and developer experience.
Docs to open next
Relevant API docs
Tutorials and research
Related articles
Earnings options research with CuteMarkets
A product-native walkthrough of implied moves, quotes, trades, and historical contracts around earnings.
Historical options backtesting
See why chain snapshots alone are not enough for causal options research.
Realistic options backtesting
Understand why fill timing, strike selection, and risk aggregation matter before deployment.
FAQ
Common questions about this options data API
What is an options data API?
An options data API gives developers programmatic access to option chains, contracts, quotes, trades, Greeks, open interest, aggregates, and related reference data.
What should a real options data API include?
For serious product or research work it should include more than chain snapshots. Contracts, quotes, trades, aggregates, and expirations are all important depending on the workflow.
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.
Use one options data API instead of stitching the surface yourself
Start with the docs, test the endpoints with a free key, and move into real-time or historical workflows as your product grows.