Kevin Meneses
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EODHD vs Alpha Vantage: Stock API Comparison (2026)

Originally published on medium.com

EODHD vs Alpha Vantage: Stock API Comparison (2026)

Most developers assume “premium” means “you get everything.”

On both EODHD and Alpha Vantage, that assumption is wrong in ways that only show up after you’ve already paid.

If you’re:

  • Building a screener or backtesting engine that needs years of clean OHLCV data,
  • Shipping a dashboard that promises “real-time” prices to end users,
  • or evaluating which financial data API to standardize on before scaling a product,

The difference between these two providers is not the sticker price. It’s what that price actually unlocks.

The Free Tier Trap

Both APIs advertise a free tier. Neither free tier does what most people expect.

EODHD’s free plan gives you 20 API calls per day. Alpha Vantage’s free plan gives you 25 requests per day, capped at 5 per minute. On paper, close enough.

But cost-per-call isn’t flat on either platform.

On EODHD, a basic EOD price lookup costs 1 call — but intraday, technical indicator, and news endpoints cost 5 calls each, and fundamentals or options data costs 10 calls. Pull one company’s full fundamentals on the free tier, and you’ve burned half your daily quota in a single request.

On Alpha Vantage, every request costs the same 1 unit regardless of endpoint — but the free tier locks you out of realtime and 15-minute delayed US market data entirely, along with realtime options. That data sits behind premium, full stop.

Neither of these facts is hidden. Both are buried deep enough in the docs that most comparison articles skip them.

Why the Subscription Price Isn’t the Real Filter

Here’s the part that changes how you should actually choose.

Alpha Vantage’s premium tiers scale by requests-per-minute: $49.99/month for 75 req/min, up to $249.99/month for 1,200 req/min. That’s the entire lever. Pay more, get more throughput.

What upgrading does not automatically give you: realtime data.

Even on a paid premium plan, accessing realtime US market data, 15-minute delayed data, or realtime US options requires logging into the Alpha X Terminal and completing a separate data entitlement process. It’s a second step, gated behind a second system, after you’ve already paid for API access.

EODHD structures this differently. Real-time access via WebSocket is bundled directly into two specific plans — EOD+Intraday All World Extended and the All-in-One package — not unlocked through a separate portal.

Neither approach is wrong. But if you’re budgeting for “realtime stock data,” the number on the pricing page and the number you actually need to spend can diverge sharply depending on which platform you pick.

EODHD and Alpha Vantage, Side by Side

Both platforms cover the fundamentals: REST APIs, JSON responses, Python-friendly, free tier to start.

EODHD
EODHD covers 60+ exchanges and 150,000+ tickers across stocks, ETFs, funds, forex, and crypto through one unified API, with 30+ years of historical depth for major markets. Fundamental data reaches back to 1985 for major US companies, 2000 for non-US companies, and covers roughly 6 years for smaller/minor companies.

Alpha Vantage
Alpha Vantage’s stock APIs are grouped into 9 categories: Core Time Series Stock Data, Index Data, US Options Data, Alpha Intelligence, Fundamental Data, Physical and Crypto Currencies, Commodities, Economic Indicators, and Technical Indicators, with stock, forex, and cryptocurrency feeds plus over 50 technical indicators available across both free and paid tiers.

EODHD vs Alpha Vantage: Feature Comparison Table

EODHD vs Alpha Vantage feature comparison table

  • Flat 1,000 requests/minute rate limit on every paid plan, regardless of tier
  • Real-time WebSocket access bundled into a plan, not gated behind a separate entitlement flow
  • Broader raw exchange/ticker coverage out of the box (150K+ tickers, 60+ exchanges)

Cons — EODHD

  • Commercial use requires a separate Startup/Commercial license even if you’re already on a paid personal plan
  • Data-heavy endpoints (fundamentals, options, news) cost 5–10x more API calls than a basic price lookup

Best for: teams that need real-time data without a second signup flow, and who are comparing raw ticker/exchange breadth.

Pros — Alpha Vantage

  • 50+ pre-computed technical indicators available without building your own calculation layer
  • Flat per-call cost regardless of endpoint — easier to estimate usage
  • No daily call cap once you’re on any premium plan

Cons — Alpha Vantage

  • Realtime and options data require a separate entitlement step via Alpha X Terminal, even after paying
  • Free tier’s 5 requests/minute limit makes rapid prototyping slower than it looks on paper

Best for: projects leaning heavily on technical indicators or Alpha Intelligence features, where the separate real-time entitlement step is a one-time cost, not a recurring friction point.

Pulling the Same Data From Both APIs

Same task — daily OHLCV for a single ticker — on both platforms.

import requests
# EODHD
def get_eodhd_daily(symbol, api_key):
    url = f"https://eodhd.com/api/eod/{symbol}.US"
    params = {"api_token": api_key, "fmt": "json", "period": "d"}
    return requests.get(url, params=params).json()
# Alpha Vantage
def get_alphavantage_daily(symbol, api_key):
    url = "https://www.alphavantage.co/query"
    params = {
        "function": "TIME_SERIES_DAILY",
        "symbol": symbol,
        "apikey": api_key
    }
    return requests.get(url, params=params).json()
eodhd_data = get_eodhd_daily("AAPL", "YOUR_EODHD_KEY")
av_data = get_alphavantage_daily("AAPL", "YOUR_AV_KEY")

Both return clean JSON. Both are trivial to drop into a pandas DataFrame.

The difference shows up the moment you scale past a single ticker or need something beyond EOD prices — that’s where call costs, rate limits, and entitlement rules start to diverge.

From here you can build:

  • multi-ticker screeners that batch requests within each platform’s rate limit
  • backtesting pipelines that pull 20–30 years of history in one pass
  • real-time dashboards — assuming you’ve already cleared the entitlement step your provider requires

Skip the Entitlement Maze
EODHD bundles real-time WebSocket access directly into its EOD+Intraday and All-in-One plans — no separate terminal signup, no second approval step. Start free, upgrade only when you actually need more than 20 calls a day.
→ Get started with EODHD

Key Takeaways

  • Free tiers on both platforms look similar on paper (20 vs 25 daily calls) but cost per request diverges sharply once you touch fundamentals, options, or news endpoints
  • Paying more on Alpha Vantage buys you throughput, not automatically realtime data — that’s a separate entitlement step even on paid plans
  • EODHD bundles real-time access into specific plans directly, trading a narrower “9-category” API taxonomy for broader raw ticker/exchange coverage

FAQs

❓ Is there a free stock API with real-time data?
✅ Not fully, on either platform. EODHD’s free tier is capped at 20 calls/day and reserves real-time WebSocket access for paid plans. Alpha Vantage’s free tier excludes realtime and 15-minute delayed US market data entirely — that data requires a paid plan plus a separate entitlement step.

❓ What’s the cheapest way to get historical EOD data for backtesting?
✅ EODHD’s EOD Historical Data — All World plan starts at $19.99/month and covers 30+ years of history for major markets — the most direct route if you just need clean historical prices without intraday or fundamentals.

❓ Does Alpha Vantage require anything extra to access realtime data after subscribing?
✅ Yes. Even on a paid premium plan, you need to log into the Alpha X Terminal separately and complete a data entitlement process to unlock realtime US market data, 15-minute delayed data, or realtime US options.

❓ Which API has a higher rate limit?
✅ EODHD offers up to 1,000 requests per minute on every paid plan, flat across tiers. Alpha Vantage scales rate limits by plan, from 75 requests/minute at the entry tier up to 1,200 requests/minute at the top tier — higher ceiling available, at a higher price.

Both APIs are solid enough to build on. The mistake is picking based on the monthly price alone — the actual cost of “real-time” only shows up after checkout.

If you’re building something that depends on that data being reliably real-time from day one, that’s worth checking before you commit, not after.

Building fintech tools or content around financial data APIs? I write technical breakdowns like this one — more at kevinmeneses.com.

Looking for technical content for your company? I can help — LinkedIn · kevinmenesesgonzalez@gmail.com

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