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Head-to-head · Apis Data Services

Massive (formerly Polygon.io) vs EODHD

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Massive (formerly Polygon.io) #1 in Apis Data Services 8.8/10 Free plan Free plan✓ 2 of 3 features Visit Massive
EODHD #2 in Apis Data Services 8.7/10 Free plan Free plan✓ 2 of 3 features Visit EODHD

Massive (formerly Polygon.io) leads on 0 checks, EODHD on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMassive (formerly Polygon.io) · 8.8/10
  • Free planboth

Massive (formerly Polygon.io) scores higher on our rubric for apis data services: 8.8 against 8.7 out of 10; our editors rank them #1 and #2.

Massive (formerly Polygon.io) is the better fit for developers needing broad financial market data. EODHD is the better fit for teams needing broad financial data and integrations.

  • Massive (formerly Polygon.io) fits best

    Developers needing broad financial market data

  • EODHD fits best

    Teams needing broad financial data and integrations

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Massive (formerly Polygon.io) 8.8/10 Visit ↗ EODHD 8.7/10 Visit ↗
At a glance
Editor score 8.8 8.7
Ranking #1 in Apis Data Services #2 in Apis Data Services
Best for Developers needing broad financial market data Teams needing broad financial data and integrations
Pricing model Free plan + paid Free plan + paid
Starting price $29/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud Cloud
Support Email, Docs Email, Live chat, Docs
Integrations 7 integrations 11 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Massive (formerly Polygon.io) 2/3 · EODHD 2/3
Historical data ✓ ✓
Webhooks Not checked yet Not checked yet
Official SDKs ✓ ✓
Specs
Monthly request limit Not checked yet Not checked yet
Rate limit Not checked yet 1000 requests/min
API style Rest Rest
Data coverage Global Global
Our review
Pros
  • Covers stocks, options, futures, indices, forex, crypto, and economics
  • Offers REST, WebSocket streaming, and historical flat-file downloads
  • Stocks Basic is free; paid Stocks plans start at $29 per month
  • Combines historical, intraday, real-time, and delayed market data
  • Offers fundamentals, news, technical indicators, and screening APIs
  • Supports Python, spreadsheets, Power BI, and other integrations
Cons
  • Stocks Basic is limited to 5 API calls per minute
  • Stocks Starter and Developer provide 15-minute delayed data
  • Plan prices shown apply to individual Stocks plans, not business plans
  • The Free Package is limited to 20 API calls per day
  • Free access covers only the past year of data
  • Commercial data solutions require contacting EODHD
Our verdict

Massive (formerly Polygon.io) provides financial market data for developers building trading applications, analytics tools, and other financial products. Its coverage spans stocks, options, futures, indices, forex, crypto, and economics,…

Read the review →

EODHD provides REST APIs that return JSON for financial data across global exchanges and instruments, including stocks, ETFs, funds, indices, forex, and cryptocurrencies. Developers can request end-of-day and historical prices, intraday…

Read the review →
  1. Massive (formerly Polygon.io)Apis Data Services 8.8Free plan
  2. EODHDApis Data Services 8.7Free plan

Strengths and trade-offs

  • Massive (formerly Polygon.io) — where it wins

    • Covers stocks, options, futures, indices, forex, crypto, and economics
    • Offers REST, WebSocket streaming, and historical flat-file downloads
    • Stocks Basic is free; paid Stocks plans start at $29 per month

    Where it doesn't

    • Stocks Basic is limited to 5 API calls per minute
    • Stocks Starter and Developer provide 15-minute delayed data
    • Plan prices shown apply to individual Stocks plans, not business plans

  • EODHD — where it wins

    • Combines historical, intraday, real-time, and delayed market data
    • Offers fundamentals, news, technical indicators, and screening APIs
    • Supports Python, spreadsheets, Power BI, and other integrations

    Where it doesn't

    • The Free Package is limited to 20 API calls per day
    • Free access covers only the past year of data
    • Commercial data solutions require contacting EODHD
  • Massive (formerly Polygon.io)8.8/10 · Free plan

    Broad market data with REST, streaming, and bulk downloads for developer-built finance products.

    Visit MassiveFull verdict →
  • EODHD8.7/10 · Free plan

    A broad REST data API for teams combining market prices, fundamentals, news, and screening.

    Visit EODHDFull verdict →

More comparisons

All apis data services comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update