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Markets Open

FINSYT DATA API — NOW IN BETA

Institutional-grade
financial data
for your next project

One API for real-time quotes, tick data, SEC filings, fundamentals, macro indicators, and private company intelligence. Standardised JSON, WebSocket streams, and SDKs in 4 languages.

0 credit card

Free tier forever

5 min

To first API call

99.9%

Uptime SLA

Python

from finsyt import RESTClient

client = RESTClient("YOUR_API_KEY")

# Get AAPL stock aggregates (OHLCV)
aggs = client.get_aggs(
    ticker="AAPL",
    multiplier=1,
    timespan="day",
    from_date="2024-01-01",
    to_date="2025-01-01",
)

for bar in aggs:
    print(f"{bar.timestamp}: O={bar.open} H={bar.high} L={bar.low} C={bar.close} V={bar.volume}")

0T+

Data points served

0 years

Historical depth

US stock tickers

0.9%

API uptime

Endpoint categories

ENDPOINTS

Every data type. One API key.

Standardised RESTful endpoints and WebSocket streams with consistent JSON schemas across all asset classes.

METHODENDPOINTDESCRIPTIONCATEGORY

GET/v1/quotes/{ticker}Real-time & delayed quoteReal-time

GET/v1/aggs/{ticker}/{timespan}OHLCV bars (1m → 1d)Historical

GET/v1/trades/{ticker}Nanosecond trade ticksReal-time

GET/v1/fundamentals/financialsIncome / Balance / Cash FlowFundamentals

GET/v1/fundamentals/kpisMargins, ratios, growth ratesFundamentals

GET/v1/sec/filingsSEC EDGAR 10-K / 10-Q / 8-KFilings

GET/v1/newsNews with sentiment scoresNews

GET/v1/insiderInsider transactionsAlternative

GET/v1/screenerFilter 10k+ tickers by any metricScreener

WSwss://stream.finsyt.com/v1/tradesWebSocket real-time streamStream

GET/v1/macroGDP, CPI, rates via FREDMacro

GET/v1/private/companiesPrivate co. discovery (75M+)Private

FINANCIAL STATEMENTS API

Source-linked financials, parsed from XBRL

Every data point is hyperlinked to its original SEC filing. Income statements, balance sheets, and cash flow data standardised across 10,000+ companies — comparable quarter by quarter.

XBRL-parsed and mapped to standard concepts
Hyperlinked citations to source filings
Annual and quarterly granularity
Derived KPIs: margins, growth rates, ratios
10+ years of history per company

JSON

{
  "ticker": "AAPL",
  "period": "Q4 2024",
  "source": "SEC EDGAR (10-Q)",
  "filed_at": "2024-11-01",
  "financials": {
    "income_statement": {
      "revenue":         { "value": 94930000000, "unit": "USD", "label": "Revenue" },
      "gross_profit":    { "value": 43884000000, "unit": "USD", "label": "Gross Profit" },
      "operating_income":{ "value": 29596000000, "unit": "USD", "label": "Operating Income" },
      "net_income":      { "value": 14736000000, "unit": "USD", "label": "Net Income" },
      "eps_diluted":     { "value": 0.97,        "unit": "USD", "label": "Diluted EPS" }
    },
    "kpis": {
      "gross_margin":    { "value": 0.462, "label": "Gross Margin %" },
      "operating_margin":{ "value": 0.312, "label": "Operating Margin %" },
      "revenue_yoy":     { "value": 0.061, "label": "Revenue YoY Growth" }
    }
  }
}

Built for the way developers actually work

⚡

Nanosecond precision

Every trade and quote message timestamped at the nanosecond. Reconstruct order books, validate fills, backtest with total fidelity.

📚

Client SDKs

Official libraries for Python, JavaScript/TypeScript, Go, and Java. Or use any HTTP client with our well-documented REST API.

🔁

WebSocket streaming

Subscribe to real-time trade and quote streams. Built on a HA messaging layer — no dropped ticks, no reconnect hell.

📊

Flat file exports

Bulk download via S3 or SFTP. Pre-partitioned parquet and CSV files for every asset class, updated after market close.

🛡️

Data redundancy

Two fully isolated networks ingest and process all exchange feeds. Failover in milliseconds. 99.9% uptime SLA on paid plans.

🔑

Transparent pricing

No surprises, no per-call fees on paid tiers. Unlimited API calls from $29/mo. Cancel anytime — no annual lock-in required.

PRICING

Simple pricing. Instant access.

Unlimited access. Cancel anytime. No credit card required for the free tier.

Basic

Free

Perfect for prototyping

All US stock tickers
5 API calls/minute
2 years historical data
End-of-day data only
Reference & company data
Community support

Starter

$29/month

15-min delayed data

Unlimited API calls
5 years historical data
15-min delayed quotes
Corporate actions
Technical indicators
Email support

Start building in minutes

No credit card. No waiting. Your free API key unlocks 2 years of historical data and real reference data instantly.

Institutional-gradefinancial datafor your next project