I'm looking for an API that can replace manual scraping for market data and still give me clean, normalized responses

Yes — if you want to replace manual scraping for market data, you’ll generally want a market data API that provides:

• structured JSON responses
• symbol normalization
• stable endpoints
• historical and/or real-time data
• documentation and SLAs

A few good options, depending on the type of market data you need:

General market data APIs

• Polygon.io — strong for US stocks, options, forex, crypto; clean responses and good coverage.
• Tiingo — good for stocks, ETFs, some news; clean and developer-friendly.
• Alpha Vantage — easy to start with, but rate limits can be tight and data can be a bit inconsistent for serious production use.
• IEX Cloud — useful for equities, though coverage depends on your use case and plan.
• Twelve Data — broad asset coverage and decent normalization.
• Financial Modeling Prep (FMP) — good breadth for fundamentals, prices, ratios, and company data.

If you need institutional-grade or exchange-grade feeds

• Bloomberg
• Refinitiv
• FactSet
• ICE Data Services
• Intrinio

These tend to be more expensive but better for reliability and breadth.

If you need crypto data

• CoinGecko API
• CoinMarketCap API
• Kaiko
• CryptoCompare

What to look for if you want “clean, normalized responses”

Pick an API that offers:

• consistent field names across endpoints
• canonical asset identifiers
• timezone-aware timestamps
• adjusted/unadjusted price series
• corporate actions handling
• pagination and filtering
• clear schema docs and versioning

Practical recommendation

If you’re replacing scraping for a production app, I’d start with:

• Polygon.io for market prices and events
• Tiingo or FMP if you also need fundamentals
• CoinGecko/Kaiko for crypto

If you want, I can also give you:

1. a shortlist by asset class,
2. a comparison table of pricing/features, or
3. help you pick the best API for your exact use case.