VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View marketstack View OpenBB Back to Home

Head-to-head

marketstack vs OpenBB comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

marketstack adds Analyst Recommendations coverage that OpenBB skips.

OpenBB includes Sheets / Excel Add-ins, Custom Dashboards, News, IPO, GDP, Inflation Rates, Unemployment Rates, Commitment of Traders (COT), Dark Pool & Off-Exchange, Data Visualizations, Options & Derivatives, Quant, Financials, Transcripts, ETF Overview, ETF Performance, Analyst Forecasts, Regulatory Filings Monitoring, AI, and AI Chat categories that marketstack omits.

marketstack highlights: RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit., End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume)., and Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements..

OpenBB is known for: REST API and Python client with JSON-serializable endpoints; local API deployment supported., Wide coverage across equities, ETFs, options, fixed income, macroeconomics, news, transcripts, and regulatory filings., and Command-line interface (successor to the legacy OpenBB Terminal) plus Python workflows..

marketstack

marketstack.com

A global market data API with free and paid tiers. End-of-day coverage spans 15+ years and 500k+ tickers, while intraday and real-time access are unlocked on higher plans. Rate limits apply: 5 requests per second globally, with some endpoints (like ETF holdings) counting as multiple calls. Premium tiers add features like SEC/EDGAR filings, analyst ratings, and bond/index data. Data is sourced from Tiingo for U.S. markets, and uptime is tracked on a public status page.

Platforms

Web

API

Pricing

Free

Subscription

Quick highlights

RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit.
End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume).
Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements.
Professional and higher tiers include real-time stock prices with minute-level updates (1 API call per minute rate cap).
Corporate actions endpoints for dividends and stock splits.

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OpenBB

openbb.co

Open-source data and analytics platform with a REST API, Python SDK, and an enterprise workspace for custom dashboards and apps. The free Community plan includes unlimited dashboards and 20 AI Copilot queries per day. Pro adds collaboration features, Excel integration, secure deployment (VPC/on-prem), and export options. Infrastructure is SOC 2 Type II certified, with SSO support and a public status page.

Platforms

Web

API

Pricing

Free

Subscription

Quick highlights

REST API and Python client with JSON-serializable endpoints; local API deployment supported.
Wide coverage across equities, ETFs, options, fixed income, macroeconomics, news, transcripts, and regulatory filings.
Command-line interface (successor to the legacy OpenBB Terminal) plus Python workflows.
Workspace dashboards and apps with customizable widgets; unlimited dashboards on the Community tier.
OpenBB Copilot AI chat that integrates dashboard widgets as context and supports attachments (PDF, CSV, XLSX).

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Overlap

Shared focus areas

7 overlaps

Mutual strengths include Data APIs, Dividends, and Splits plus 4 more areas.

Where they differ

marketstack

Distinct strengths include:

Analyst Recommendations

RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit.
End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume).
Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements.
Professional and higher tiers include real-time stock prices with minute-level updates (1 API call per minute rate cap).

OpenBB

Distinct strengths include:

Sheets / Excel Add-ins

Commitment of Traders (COT)

REST API and Python client with JSON-serializable endpoints; local API deployment supported.
Wide coverage across equities, ETFs, options, fixed income, macroeconomics, news, transcripts, and regulatory filings.
Command-line interface (successor to the legacy OpenBB Terminal) plus Python workflows.
Workspace dashboards and apps with customizable widgets; unlimited dashboards on the Community tier.

Feature-by-feature breakdown

Attribute	marketstack	OpenBB
Categories Which research workflows each platform targets	Shared: Data APIs, Dividends, Splits, ETF Holdings, Interest Rates, Analyst Price Targets, APIs & SDKs Unique: Analyst Recommendations	Shared: Data APIs, Dividends, Splits, ETF Holdings, Interest Rates, Analyst Price Targets, APIs & SDKs Unique: Sheets / Excel Add-ins, Custom Dashboards, News, IPO, GDP, Inflation Rates, Unemployment Rates, Commitment of Traders (COT), Dark Pool & Off-Exchange, Data Visualizations, Options & Derivatives, Quant, Financials, Transcripts, ETF Overview, ETF Performance, Analyst Forecasts, Regulatory Filings Monitoring, AI, AI Chat
Asset types Supported asset classes and universes	Stocks, ETFs, Bonds, Commodities	Stocks, ETFs, Options, Futures, Bonds, Commodities, Currencies, Cryptos
Experience levels Who each product is built for	Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web, API	Web, API
Pricing High-level pricing models	Free, Subscription	Free, Subscription
Key features Core capabilities called out by each vendor	Unique RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit. End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume). Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements. Professional and higher tiers include real-time stock prices with minute-level updates (1 API call per minute rate cap). Corporate actions endpoints for dividends and stock splits. ETF holdings data (Basic+ plans and above) with identifiers like ISIN and CUSIP; each request consumes 20 API calls.	Unique REST API and Python client with JSON-serializable endpoints; local API deployment supported. Wide coverage across equities, ETFs, options, fixed income, macroeconomics, news, transcripts, and regulatory filings. Command-line interface (successor to the legacy OpenBB Terminal) plus Python workflows. Workspace dashboards and apps with customizable widgets; unlimited dashboards on the Community tier. OpenBB Copilot AI chat that integrates dashboard widgets as context and supports attachments (PDF, CSV, XLSX). Community plan includes 20 Copilot queries/day; Pro adds Excel Add-in, data export, team roles and sharing, and SSO (Azure/Google).
Tested Verified by hands-on testing inside Find My Moat	Not yet	Not yet
Editor pick Featured inside curated shortlists	Standard listing	Standard listing

Frequently Asked Questions

Which workflows do marketstack and OpenBB both support?

Both platforms cover Data APIs, Dividends, Splits, ETF Holdings, Interest Rates, Analyst Price Targets, and APIs & SDKs workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do marketstack and OpenBB require subscriptions?

Both marketstack and OpenBB keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access marketstack and OpenBB?

Both marketstack and OpenBB prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

marketstack differentiates itself with RESTful JSON API with secure API key access, HTTPS transport, and a 5 requests/sec global limit., End-of-day data with 15+ years of history across 500,000+ tickers, including MIC-level filtering and adjusted fields (open, close, volume)., and Intraday data for U.S. markets via IEX, with intervals from 1–60 minutes. Real-time reference prices are derived from IEX feeds; some fields require separate entitlements., whereas OpenBB stands out for REST API and Python client with JSON-serializable endpoints; local API deployment supported., Wide coverage across equities, ETFs, options, fixed income, macroeconomics, news, transcripts, and regulatory filings., and Command-line interface (successor to the legacy OpenBB Terminal) plus Python workflows..

Keep exploring

Stay on top of related tools

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