An options data API decision is weak when it starts with provider branding. The stronger path is to write down the workflow boundary first: chain explorer, scanner, quote-aware backtest, dashboard, volatility screen, broker-adjacent app, or institutional data pipeline.
Once the boundary is clear, test each provider against observable data objects. For most application workflows that means listed expirations, contracts, chains, snapshots, quotes, trades, aggregates, Greeks, open interest, pagination, timestamps, docs, limits, and pricing.