Stock market tools and data
289 tools in 21 categories, from market data APIs and charting platforms to dividend trackers, trade journals and retirement calculators. Every page answers the same questions with a number and a date: what it costs and what each tier unlocks, where the free tier stops, which markets it covers, how live the data is, and what the licence lets you do with it.
208 free tiers, and they stop in different places
One caps the calls, one only ever gives you yesterday’s close, one lets you use the data but never show it to anyone. The data that stays free is published by a regulator or a central bank, and the guide says which.
The exchange sets the price, not the vendor
65 of these carry real-time prices. For a data API, most of the bill is the exchange’s own fee passed through, and it moves with whether you are a professional, how many screens see it and whether you display it. The expensive words are not real-time.
66 of them an LLM can call directly
Market data, fundamentals, brokerage and research behind an MCP server, so an agent can use them with no scraper in the middle — and on each card, the licence that decides what it may do with what comes back.
Lost IEX Cloud, Quandl or the Yahoo Finance API?
46 pages on products you cannot buy any more or that changed under you — shut down, paywalled or priced for a bank — and which of these tools cover the same ground, in an order that paid placement does not touch.
Added, re-checked or rewritten in the last 14 days.
- DeepValAI-written business, financials and moat reports on US companies, then weekly tracking.
- Greenwick JournalAn offline browser trade journal bought once, fed by your broker's CSV or Excel export.
- KuberaOne balance sheet for brokerage accounts, crypto wallets, property and private holdings.
- LoonieeCanadian accounts and TFSA, RRSP, FHSA and RESP room from broker files, no bank login.
- MantisiPhone-only trade journal tagging each trade with an emotion; free for 10 trades a month.
- MarketCatalystMovers, earnings, analyst actions and EDGAR filings on one screen, each with an AI read.
Categories
Filed by the job a tool is hired for, not by its feature list — a screener inside a charting platform is still a charting platform.
Stock Charting Platforms & Screeners
Chart, scan and screen the market from a product, not a notebook.
27 tools
Desktop Trading Platforms & Order Flow
Trade from the chart and read the book — DOM, footprint and broker connections, and what the data behind them costs.
13 tools
Options Data & Flow Analytics
Chains, greeks and the options tape — what the options market is priced at, and what is moving through it.
17 tools
Trading Journal Software
How you traded and where it went wrong — the record, not the position.
15 tools
No-Code Strategy Builders & Auto-Trading
Build a rule in a UI, test it, and let it trade — without a line of code or a server of your own.
13 tools
Fundamental Data & Stock Research Platforms
Financials, filings and valuation work for people who read the numbers themselves.
32 tools
ETF Research & Screeners
Screen, compare and look inside index funds — holdings, overlap, flows and the cost of owning one.
8 tools
Insider, 13F & Congressional Trade Trackers
Who bought what, out of the public disclosure record — insider filings, fund holdings, congressional trades and short interest.
22 tools
Dividend Trackers & Research
What a portfolio pays, when, and whether it will keep paying — calendars, income projections and payout research.
10 tools
Stock Portfolio Trackers
What you hold, what it is worth, and what the return actually was.
21 tools
Retirement & Portfolio Planning Calculators
Will the money last — withdrawal rates, what an allocation did over decades, and the years in between.
15 tools
Stock Market Data APIs
Quote, bar, tick and fundamentals APIs for people who write their own code.
31 tools
Financial News & Sentiment APIs
Headlines, articles and sentiment scores tagged to tickers, delivered over an API.
12 tools
Macro & Economic Data APIs
Rates, inflation, employment and national accounts — from the offices that publish them and the APIs that aggregate them.
12 tools
Backtesting Frameworks & Algo Trading Libraries
Take a strategy, simulate it, and find out whether the edge survives costs.
25 tools
Market Analysis & Portfolio Optimization Libraries
Indicators, performance statistics, pricing models and optimizers you import into your own code.
13 tools
Tick Data Storage & Time-Series Databases
Where a year of ticks lives — embedded libraries and time-series databases, and what they cost to run.
10 tools
JavaScript Charting Libraries for Finance
What draws the candles inside a product you ship — renderers, toolkits and the licence each one carries.
9 tools
Brokerage Account Aggregation APIs
Read positions and trades out of a brokerage account through one API.
7 tools
Financial MCP Servers
Tool servers an LLM client calls for quotes, filings and screens — you bring the model, the server answers.
3 tools
AI Research Agents & Copilots
Products where the model does the reading and comes back with a report — frameworks you run and copilots you subscribe to.
7 tools
Collections
The same cards sliced by one thing they have in common rather than by the job they are hired for — what you can run on your own machine, what is live rather than delayed, what drops into a spreadsheet.
- Open-source stock market tools54 tools
- Self-hosted stock market tools68 tools
- Real-time market data tools65 tools
- Market data in Excel and Google Sheets28 tools
- Stock screeners102 tools
- Options data and options analysis tools103 tools
- Futures data and futures trading tools89 tools
- Forex data and FX trading tools96 tools
- Backtesting software and platforms84 tools
- AI stock research and analysis tools89 tools
Already holding something?
Most people do not arrive at a catalogue to browse. They arrive because a provider shut down, changed its terms, or costs more than the job is worth — one page each, with what here does that job now.
- Atom FinanceShut down
- Benzinga ProStill running
- BigChartsShut down
- Bloomberg TerminalStill running
- ChartIQStill running
- DAS Trader ProStill running
- Empower Personal DashboardStill running
- Excel Stocks data type and STOCKHISTORYTerms changed
- FactSet WorkstationStill running
- FinvizStill running
- FIRECalcStill running
- GOOGLEFINANCETerms changed
- IEX CloudShut down
- Investing.comStill running
- KoyfinStill running
- KuberaStill running
- London Stock Exchange My AccountShut down
- LSEG EikonShut down
- MacrotrendsTerms changed
- MarketSurgeStill running
- MetaStockStill running
- Morningstar InvestorStill running
- Morningstar Portfolio Manager and X-RayShut down
- NinjaTraderStill running
- Portfolio VisualizerStill running
- QuandlTerms changed
- QuantopianShut down
- QuickenStill running
- QuickFSShut down
- Robinhood APITerms changed
- RoiShut down
- S&P Capital IQ ProStill running
- Seeking Alpha PremiumStill running
- SharesightStill running
- Simply Wall StStill running
- Stock RoverStill running
- StockMarketEyeShut down
- TC2000Still running
- TD Ameritrade APIShut down
- thinkorswimStill running
- Trade IdeasStill running
- TradeStationStill running
- TradingViewStill running
- Unusual WhalesStill running
- WallmineShut down
- Yahoo Finance APITerms changed
Everything here that speaks MCP
66 of the 289 tools expose an MCP server an LLM can call directly — market data, fundamentals, brokerage, research. Nobody else keeps this list, so we do.
See the listFrequently asked questions
What does "hands-on" mean on a card?
That we obtained a key or an account and used the tool ourselves — pulled the same ticker, hit the free tier until it stopped, followed the documentation to the place where it was wrong. No card carries the badge today: it marks the tools we did run, never the ones we intend to. The other 289 are compiled from the vendor's own documentation, pricing page and terms, and claim to be nothing more.
How often is a card updated?
Per block, not per page. Pricing goes stale in weeks and asset coverage in years, so each block on a card carries its own verification date and the ones that have gone old are flagged on the card itself. There is no site-wide "last reviewed" date, because it would be true of one block and a lie about the rest.
How is a tool filed into a category?
By the job it is bought for, not by its feature list. One product gets one primary category; a screener inside a charting platform is a capability flag, not a second category. The unit is a product, not a company, so one vendor can hold several cards.
What is not in the catalogue?
Brokers, robo-advisors and signal services — anything that holds your money or tells you what to buy. What is in is software and data in whatever shape it arrives: hosted APIs, desktop platforms, open-source libraries you install yourself, spreadsheet add-ins, and the guides explaining how the industry prices all of it.
Does paid placement change what a card says?
No. A sponsorship buys a label and presentation — never sort position, never a rating, never a different set of fields, and free cards are never trimmed. Vendor-supplied copy renders in its own labelled block and is never merged into ours.
Can an AI agent read these pages?
Yes. Every card and listing has a plain-Markdown twin at the same URL with .md on the end — /tools/polygon-io.md, /tools.md — carrying the fields without the page chrome.