Eulerpool API

The Financial Data API.
One Call. Every Market.

Free stock market data API with real-time and historical data across equities, fixed income, derivatives, FX, commodities, and economic indicators — built for AI agents and developers.

No credit card · Free forever · Live in 60 seconds

import requests

response = requests.get(
    "https://api.eulerpool.com/api/1/equity/incomestatement/US0378331005",
    params={
        "token": "YOUR_API_KEY"
    }
)

data = response.json()
Response200 OK8ms

  "ticker" "AAPL"
  "period" "2025-09-27"
  "revenue" 416161
  "grossIncome" 195201
  "netIncome" 112010
  "ebit" 133050
  "diluted_eps" 7.34
  "shares" 15260

Trusted by analysts and engineers at

BlackRockGoldman SachsJPMorganGoogleCitadelBridgewaterMorgan StanleyBloomberg
140+ API endpoints|100,000+ securities|30+ years history|90+ exchanges|99.99% uptime

Benchmark

Highest accuracy market data

State of the art on financial agent benchmarks

Finance Agent
Accuracy (%)
255075
Expensive legacy
Budget APIs
REFINITIV52% · $2,400
BLOOMBERG67% · $2,800
ICE DATA60% · $2,200
MSCI58% · $1,800
S&P GLOBAL71% · $2,100
FACTSET62% · $1,500
MOODY’S55% · $1,200
MORNINGSTAR65% · $800
NASDAQ DATA48% · $500
INTRINIO51% · $350
POLYGON55% · $200
IEX CLOUD47% · $100
TWELVE DATA45% · $80
ALPHA VANTAGE43% · $50
YAHOO FINANCE38% · Free
EULERPOOL94% · $499/mo
Price-Performance →
EULERPOOL OTHERS

About this benchmark

This benchmark tests the ability of agents to perform tasks expected of an entry-level financial analyst. Created in collaboration with Stanford researchers, a Global Systemically Important Bank, and industry experts, it consists of 537 questions evaluating skills such as simple retrieval, market research, and projections. The core task is performing research on SEC filings of public companies — foundational to equity research, credit analysis, and investment due diligence.

Methodology

  • Tools: AI agents were evaluated with access to financial data APIs including Eulerpool, Bloomberg, FactSet, Refinitiv, S&P Global, MSCI, Moody’s, Morningstar, ICE Data Services, Polygon.io, Alpha Vantage, IEX Cloud, Intrinio, Nasdaq Data Link, Twelve Data, and Yahoo Finance, along with Google search, a document parser for loading and chunking large filings, and a retrieval tool for targeted questioning over extracted text.
  • Evaluation: Primary metric is final answer accuracy. Latency, tool utilization patterns, and computational cost are also recorded for a fuller picture of agent efficiency.
  • Cost: Pricing reflects average enterprise plans from each provider that include access to fundamentals, SEC filings, and other core financial data. Actual pricing can vary as enterprise agreements are often negotiated on usage and specific needs.

Recognized by G2

G2 Leader Winter 2026
G2 High Performer Winter 2026
G2 Momentum Leader Winter 2026

Līderis · Finanšu dati, 2026. gada ziema

BlackRock

“Eulerpool replaced three legacy data subscriptions in our equity research workflow. Migration took two days.”

Sarah Chen

VP Equity Research · BlackRock

Citadel

“Point-in-time data quality rivals CRSP at a fraction of the cost. We run all backtests on Eulerpool now.”

Dr. James Whitfield

Quantitative Researcher · Citadel

Goldman Sachs

“We migrated our entire data pipeline in 48 hours. The API is the cleanest I have worked with in finance.”

Marcus Rodriguez

Engineering Lead · Goldman Sachs

Complete Stock Market Data API. Every Asset Class.

140+ endpoints for real-time stock prices, OHLCV candles, fundamentals, 40+ financial ratios, stock correlation & beta, AAQS quality scores, quarterly financials, historical market cap, SWOT analysis, analyst upgrades/downgrades, options chains, market status, top movers, earnings calendars, sentiment analytics, superinvestor holdings, bonds, certificates, commodities, forex, crypto, and economic indicators through a single RESTful API.

Equities

Global stocks, 90+ exchanges, OHLCV + fundamentals

Fixed Income

Govs, corporates, munis, yield curves, credit ratings

Derivatives

Options chains, futures, Greeks, IV surfaces

FX & Commodities

2,000+ pairs, spot + forwards, metals, energy

Macro / Economic

GDP, CPI, rates, employment, central bank decisions

Fundamentals

Annual & quarterly financials, 40+ ratios, filings

30+ Years Historical

Point-in-time, survivorship-bias-free, backtesting-safe

Real-time Streaming

Sub-10ms latency, WebSocket, global CDN

Single source of truth

A system of record for the core market data that your financial agents need

Clean and effortless APIs

Build your first request in seconds. Leave the data wrangling to us.

PythonTypeScriptGoRustJavaR|OpenAPI SpecDocs

Pricing

Start free. Scale when you're ready.

Monthly subscription + included credits. Overage metered automatically.

Scale

$1,999/mo

or $19,990/yr billed annually

5M requests / month included

  • All financial datasets
  • Filings + document links
  • Earnings calls & conference events
  • Historical extended coverage
  • Premium rate limits
  • Dedicated Slack channel
  • SLA option
  • Priority support

Overage $0.30 / 1K req

Contact sales

Startup

$499/mo

or $4,990/yr billed annually

1M requests / month included

  • Full financials (as-reported + standardized)
  • Adjusted metrics
  • Segments & KPIs (extended coverage)
  • Filings access
  • Earnings transcripts & events
  • Higher rate limits
  • Priority processing
  • Commercial usage

Overage $0.80 / 1K req

Get started
Popular

Builder

$99/mo

or $990/yr billed annually

100K requests / month included

  • Full financial statements (annual + quarterly)
  • Ratios & standardized metrics
  • Analyst estimates (limited)
  • Segments & KPIs
  • EOD market data
  • Commercial usage
  • Standard support

Overage $1.50 / 1K req

Get started

Free

$0

forever

1,000 requests / day

  • Delayed market data
  • Core financials & ratios
  • Standard rate limits
  • All SDKs & MCP access
  • Non-commercial usage
Start free

No credit card

1 unit = 1,000 requests · Usage aggregated monthly · Failed requests = free · Overage billed automatically

Built by former McKinsey and Goldman Sachs professionals. MIT Computer Science.

The Old Way vs. Eulerpool

Stop overpaying for financial data.

Terminal required

Pure API. Any language.

Python, JavaScript, Go, R, C++ — or plain curl. Your stack, your rules.

$24,000/year/seat

Free — forever.

1,000 calls/day on the free tier. No credit card. Upgrade only when you need to.

Sales calls to get started

Self-serve in 60 seconds.

Sign up, get your key, make your first call. No demos, no procurement.

Proprietary protocols

REST + WebSocket. JSON.

Standard HTTP you already know. No vendor SDK lock-in, no binary protocols.

Built for human eyeballs

Built for machines & agents.

Typed JSON, deterministic schemas. Ready for LLMs, copilots, and automation.

Data locked in a desktop app

Data wherever your code is.

CI pipelines, notebooks, serverless functions, edge — no desktop required.

Get your free API key

No credit card · 1,000 free calls/day · Setup in 60s

Who uses the Eulerpool API.

AI Agents

Give your agent access to every market on earth. Structured data. Zero scraping.

Quant Funds

Backtest across 30+ years of clean, survivorship-bias-free data.

Fintechs

Power your app with institutional-grade data. Launch in days, not months.

Researchers

Free access for academic and open-source work. No paywall on knowledge.

Financial Data API: Frequently Asked Questions

What is a financial data API?

A financial data API is a programmatic interface that allows developers to access financial market data — including stock prices, company fundamentals, forex rates, commodities, bonds, and economic indicators — directly from their applications via HTTP requests. Instead of manually downloading spreadsheets or scraping websites, you receive clean, structured JSON data in milliseconds. Eulerpool's financial data API covers 90+ global exchanges, 100,000+ securities, and 30+ years of historical data.

Is there a free financial data API?

Yes. Eulerpool offers a generous free tier with 1,000 API calls per day, full data coverage with 15-minute delay, and no credit card required. The free tier includes access to stock market data, company fundamentals, forex, commodities, and economic indicators. It's free forever — no trial period, no expiration. You can upgrade to paid plans starting at $99/month for real-time data, full historical access, and higher rate limits.

How does Eulerpool compare to Bloomberg Terminal?

Eulerpool provides the same institutional-grade financial data that Bloomberg Terminal offers, but as a modern REST API. Bloomberg charges $24,000 per year per terminal seat and requires proprietary software. Eulerpool starts free (1,000 calls/day), works with any programming language, and delivers data as structured JSON via standard HTTP — no proprietary protocols, no desktop app, no sales calls to get started.

What financial data does the API cover?

Eulerpool's API covers equities (90+ exchanges globally), company fundamentals (income statements, balance sheets, cash flow, ratios), fixed income (government and corporate bonds, yield curves), derivatives (options chains, futures, Greeks, IV surfaces), foreign exchange (2,000+ currency pairs), commodities (metals, energy, agriculture), and macroeconomic indicators (GDP, CPI, interest rates, employment data for 200+ countries). All data is available with 30+ years of history.

Which programming languages are supported?

Eulerpool provides official SDKs for Python, JavaScript/TypeScript, and Go. The API is a standard REST API that works with any language that can make HTTP requests — including Java, C++, R, PHP, Ruby, Rust, and C#. We also provide an OpenAPI specification for automatic client generation in any language, plus an Excel add-in for spreadsheet workflows.

Does the API support real-time streaming data?

Yes. Eulerpool offers real-time market data with sub-10ms latency via WebSocket connections, distributed through a global CDN. Real-time streaming is available on paid plans and includes live stock quotes, trades, forex rates, and commodities prices. The free tier includes 15-minute delayed data for all asset classes.

Can AI agents and LLMs use the financial data API?

Absolutely. Eulerpool's API is AI-native by design — every endpoint returns typed, deterministic JSON with consistent schemas. It supports OpenAI function calling, MCP (Model Context Protocol), and is structured for LLMs, AI agents, and copilots to reason about financial markets without hallucinating. Batch endpoints let agents ingest data for 100 symbols in a single call.

How do I get started with the financial data API?

Getting started takes 60 seconds: sign up for a free account, get your API key, and make your first API call. No credit card required, no approval process, no sales calls. Install the Python SDK with pip install eulerpool or use curl directly. Full documentation, code examples, and quickstart guides are available in our developer docs.

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As featured in

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10,000+

API developers

500,000+

investors in ecosystem

3,800+

Terminal users

Start Building with a Free Financial Data API.

Get your free API key

No credit card required. Free forever tier.