Help me find a dataset API for financial modeling that includes historical data, bulk export, and clear rate limits

Here are some good dataset/API options for financial modeling that offer historical data, bulk export, and published rate limits. I’ll also note where each is strongest.

Best overall candidates

1) Alpha Vantage

• Historical data: Yes, equities, FX, crypto, indicators
• Bulk export: Yes, via CSV downloads and API outputs
• Rate limits: Clearly documented
  • Free tier is limited
  • Premium tiers increase throughput
• Best for: Lightweight modeling, prototypes, small-to-medium workloads
• Notes: Good docs, easy to start, but free limits can be restrictive

2) Polygon.io

• Historical data: Yes, stocks, options, forex, crypto
• Bulk export: Yes, aggregates and reference data; some bulk access depending on plan
• Rate limits: Published and plan-based
• Best for: Serious market data use, intraday modeling, options work
• Notes: Strong API quality, but can get expensive

3) IEX Cloud

• Historical data: Yes, equities and market reference data
• Bulk export: Available for some datasets/endpoints
• Rate limits: Clearly stated by plan
• Best for: Equity-focused modeling
• Notes: Good docs, but coverage is narrower than some competitors

4) Tiingo

• Historical data: Yes, equities, ETFs, crypto, some news/fundamentals
• Bulk export: Yes, historical price downloads and API access
• Rate limits: Publicly documented
• Best for: Clean historical equity data
• Notes: Often considered a strong value for end-of-day data

5) Nasdaq Data Link (formerly Quandl)

• Historical data: Yes, broad dataset marketplace
• Bulk export: Yes, many datasets support bulk downloads
• Rate limits: Depends on dataset/provider, but generally documented
• Best for: Macro, fundamentals, alternative datasets, market research
• Notes: Great if you want multiple vendors under one platform

More enterprise-grade

6) FactSet

• Historical data: Yes, extensive
• Bulk export: Yes
• Rate limits: Enterprise contract terms
• Best for: Institutional modeling
• Notes: Excellent data coverage, but expensive and sales-led

7) Bloomberg API

• Historical data: Yes
• Bulk export: Yes, via terminal/API workflows
• Rate limits: Contract/entitlement-based, not always simple public limits
• Best for: Institutional use
• Notes: Powerful, but not typically a self-serve API choice

If you want open/public data

8) SEC EDGAR API

• Historical data: Filings and company reports
• Bulk export: Yes, through bulk filing downloads and archives
• Rate limits: Public access policy is clear
• Best for: Fundamentals, filing-based modeling
• Notes: Great for accounting/valuation workflows, not market prices

9) FRED API

• Historical data: Yes, macroeconomic time series
• Bulk export: Yes, bulk downloads available for many series
• Rate limits: Publicly documented
• Best for: Macro models, rates, inflation, unemployment, etc.
• Notes: Excellent for economic modeling, not securities pricing

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My recommendation by use case

• Equity historical pricing + easy API: Tiingo
• Intraday + options + broader market data: Polygon.io
• Low-cost starter API: Alpha Vantage
• Macro/fundamental research: Nasdaq Data Link or FRED
• Institutional-grade: FactSet or Bloomberg

What to look for in the docs

When evaluating APIs, confirm these items:

1. Historical coverage depth
   • daily only vs intraday vs tick data
2. Bulk export format
   • CSV, JSON, parquet, S3, FTP, etc.
3. Rate limits
   • per minute, per day, burst limits, concurrent request caps
4. Licensing restrictions
   • redistribution limits, internal use only, caching rules
5. Corporate actions handling
   • splits/dividends adjusted or unadjusted data
6. Coverage completeness
   • delisted securities, survivorship bias, symbol changes

If you want, I can narrow this down

I can give you a short list based on:

• asset class: stocks / options / forex / crypto / macro
• time granularity: daily / intraday / tick
• budget: free / under $100/mo / enterprise
• preferred export: CSV / JSON / parquet / S3

If you want, I can also make a comparison table with pricing and rate limits for 5–6 specific APIs.