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Finnhub is a hosted financial-data API for market data, company fundamentals and alternative datasets. Its global access starts at $3,500 per month with annual billing, which can push teams toward narrower market-data APIs or trading platforms. The alternatives below cover those different jobs: Alpha Vantage, Polygon.io and Financial Modeling Prep for data, plus Alpaca, Tradier and SnapTrade for brokerage workflows. They are not drop-in replacements; check endpoint coverage, limits, terms and migration work against your Finnhub calls.
01Why people leave Finnhub
Pricing can change the business case
One Reddit commenter reported a sharp increase and datasets becoming paid; treat that as an individual account, not a general pricing history.
Coverage may not match your symbols
A Reddit user reported receiving “Symbol not supported” for Dutch stocks and indexes they had previously queried.
Developers question data reliability
In a Reddit discussion about research APIs, a user called Finnhub unreliable and inaccurate; verify important fields against your own requirements.
02The alternatives, ranked by fit
- Financial research
Financial Modeling PrepFinancial Modeling PrepFinancial Modeling Prep lists a starting price of $19 and a free plan, with structured market datasets for research and screening apps. It is a candidate when Finnhub’s broader feature set costs more than your application needs. Compare the endpoints and fields your code consumes, then build a mapping layer; confirm rate limits, SDK support and commercial terms before migrating production traffic.
Trade-off: Verify coverage and reliability for the specific datasets you depend on.
6.8/10from
$19/mofree plan - Multi-asset market data
Polygon.ioPolygon.ioPolygon.io lists a $23.2 starting price and offers REST, WebSockets and flat files across multiple asset classes. That mix can fit applications that need streaming or bulk research data as well as API calls. Treat a switch as an endpoint-by-endpoint migration, not a compatible replacement: check symbol coverage, plan costs, limits and the delivery method your code needs.
Trade-off: Confirm coverage, data quality and plan costs for your workload.
6.8/10from
$23.20/mo - Low-volume prototypes
Alpha VantageAlpha VantageAlpha Vantage lists a $41.58 starting price and a free plan, with broad market-data coverage for prototypes, low-volume integrations and spreadsheet workflows. It may suit a smaller workload that does not need Finnhub’s full range of datasets. Before moving production calls, verify request limits, endpoint parity, data quality, SDK support and whether the service terms fit your application.
Trade-off: Production limits and data quality need checking before you scale.
6.6/10from
$41.58/mofree plan - Trading applications
AlpacaAlpacaAlpaca lists a $99 starting price and a free plan, and its hosted trading API is aimed at algorithmic trading, embedded brokerage and paper-trading prototypes. Choose it when the application needs brokerage or execution features in addition to market data, rather than as a like-for-like Finnhub data swap. Check data-feed limits and live execution requirements, then plan for different API calls.
Trade-off: Data-feed limits and live execution need scrutiny.
6.9/10from
$99/mofree plan - Options trading
TradierTradierTradier lists a $10 starting price and a free plan, with broad trading coverage and a fit for automated options strategies and brokerage integrations. It is worth comparing when your Finnhub-backed product is growing into a trading workflow. The API serves a different job from a broad market-data service, so map the required operations and verify rate limits, execution behavior and developer support before switching.
Trade-off: It is a brokerage API, not a full market-data substitute.
6.6/10from
$10/mofree plan - Brokerage connections
SnapTradeSnapTradeSnapTrade lists a $100 starting price and a free build tier, with brokerage data and trading APIs for portfolio apps and multiple brokerage connections. It can replace Finnhub only where your core need is brokerage-linked portfolio data or trading, not broad company fundamentals. Confirm production costs, supported connections and the API surface your app needs; expect to change integration logic rather than reuse Finnhub calls.
Trade-off: Production costs vary, and it does not target broad market data.
7.2/10from
$100/mofree plan
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 Finnhub Finnhub (current) | 7.0 | $3,500/mo | Yes | US market-data prototypes |
| Financial Modeling Prep Financial Modeling Prep | 6.8 | $19/mo | Yes | Financial research and screening apps |
| Polygon.io Polygon.io | 6.8 | $23.20/mo | No | Applications using REST or WebSockets |
| Alpha Vantage Alpha Vantage | 6.6 | $41.58/mo | Yes | Prototyping market-data integrations |
| Alpaca Alpaca | 6.9 | $99/mo | Yes | Algorithmic trading prototypes |
| Tradier Tradier | 6.6 | $10/mo | Yes | Automated trading with options |
| SnapTrade SnapTrade | 7.2 | $100/mo | Yes | Investment tracking apps |
Questions people ask
Which Finnhub alternative has the lowest listed starting price?
Among these picks, Tradier lists a $10 starting price, but it is a brokerage API rather than a direct market-data replacement. For market-data and research use, Financial Modeling Prep lists $19, followed by Polygon.io at $23.2. Compare plan limits and billing terms before treating those prices as equivalent.
Can I switch from Finnhub without rewriting my integration?
Do not assume the APIs are drop-in compatible. Compare each alternative’s endpoints, symbols, fields and delivery methods with the Finnhub calls in your code, then plan a mapping layer or endpoint rewrite. Ask vendors about SDKs for your language, rate limits and any differences in historical coverage before routing production requests.
Can I self-host a Finnhub alternative?
These picks are described as APIs or hosted financial services, not as self-hosted replacements. Ask each vendor whether it offers a self-hosted deployment, what license applies, and how you can export or retain data if you leave. Do not assume you can move provider data between services or keep using it after cancellation.