Financial Data API

Institutional Financial Data API
& Enterprise Data Feeds

Let financial data come directly to your applications, Excel sheets, Docs, AI models, and financial dashboards through easy-to-integrate APIs and enterprise-ready datasets. Programmatic access to 20+ years of normalized fundamentals, industry benchmarks, financial ratios, segment intelligence, and supply-chain data - structured for AI, quant research, and enterprise analytics platforms.

REST JSON 14,000+ Companies 110 industries TTM / FY / Quarterly Daily Updates AI-Ready Plans from $49/mo
14,000+
Public Companies
110
Industries
13
Sectors
20+ yrs
Historical Data
TTM/FY/Q
Period Structures
REST JSON
API Format
Daily
Data Updates
Query any classification, all cross-walked: CSIMarket 110 industries · 13 sectors / NAICS 156 / SIC 410

Where It Runs

Designed for Modern Analytics Stacks

API feeds integrate seamlessly into analytics, BI, spreadsheet, cloud, and AI environments - wherever your team works.

Environments

  • Google Sheets & Microsoft Excel
  • Python / pandas & Jupyter notebooks
  • Power BI, Tableau, and Looker Studio
  • Snowflake, Databricks, BigQuery, Redshift
  • AWS S3 & enterprise cloud data lakes
  • REST API apps & internal research systems
  • Quantitative models & algorithmic workflows
  • AI agents & LLM-powered analytics platforms

Suitable For

  • Institutional research
  • Benchmarking workflows
  • Automated reporting
  • Enterprise analytics
  • Financial modeling
  • Transfer pricing analysis
  • AI-driven data enrichment
  • Analytics pipeline integration

Overview

What Are Financial Data APIs?

Financial APIs (Application Programming Interfaces) allow applications, models, dashboards, spreadsheets, AI agents, and research systems to automatically retrieve structured financial datasets and financial data feeds in real time or on scheduled updates - instead of manually downloading reports or copying data.

Excel & Google Sheets

Individual investors and analysts can connect financial datasets directly into spreadsheets for automated tracking, dashboards, screening systems, and investment research.

Python & Quantitative Research

Developers, data scientists, and quantitative analysts can integrate APIs into Python workflows using pandas and financial analysis libraries.

  • Building factor investing models
  • Training AI and machine learning models
  • Running backtests and quantitative strategies
  • Creating automated stock screening systems
  • Monitoring industry momentum and volatility
  • Building financial research pipelines

Power BI & Tableau

Business intelligence platforms can connect directly to APIs and datasets for interactive dashboards, benchmarking, visualization, and financial reporting workflows.

Enterprise & Cloud Analytics

Institutional users can integrate datasets directly into enterprise cloud infrastructure, internal analytics systems, AI workflows, Snowflake, Databricks, and large-scale quantitative research pipelines.

Data Feeds

Stock Market Data Feeds

Institutional-grade market data feeds covering US and international exchanges - including proprietary industry and sector indices and index analytics, advanced quantitative screening, and market breadth intelligence structured for quantitative research, benchmarking against major indices, and enterprise analytics pipelines.

API Feed

Exchange Coverage

  • US exchange coverage
  • Active and delisted company coverage
  • Exchange, currency, ISIN, CUSIP, CIK, LEI and OpenFIGI mapping
  • Fiscal period and time-series market structure data
API Feed

Market Structure

  • Company market structure & constituent analytics
  • Proprietary industry and sector index construction
  • Industry, sector, NAICS, SIC, ISIC and GSIC classification
  • Market capitalization and cap-weighted constituents
  • Equal-weight and index contribution analytics
API Feed

Industry & Sector Indexes

  • Proprietary industry and sector index series
  • Cap-weighted and equal-weight index methodologies
  • Industry benchmark and constituent analytics
  • Sector rotation and market breadth indicators
API Feed

Performance & Signals

  • Multi-period market performance analytics
  • Relative strength, momentum and trend intelligence
  • Industry and sector performance benchmarking
  • Market breadth and participation indicators
  • Technical and quantitative market signal analytics
API Feed

Advanced Screening & Quant Analytics

  • Industry and sector-based stock screening
  • Relative strength and momentum ranking systems
  • Volatility, beta and trend factor screening
  • Equal-weight vs cap-weight participation analytics
  • Institutional market breadth and concentration studies
API Feed

Risk & Liquidity

  • Volatility, beta and correlation analytics
  • Liquidity, dollar volume and turnover metrics
  • Institutional market breadth and concentration analytics
  • Historical end-of-day market data
API Feed

Price & OHLCV

  • Open, high, low, close and volume data (OHLCV)
  • Adjusted historical price series
  • Cash dividends history
  • Stock splits and reverse splits
API Feed

Corporate Actions

  • Corporate actions data
  • Delisted securities database
  • Daily updated quantitative research feeds
  • Institutional market breadth analytics
Stock Market Feeds - Endpoints & Documentation

Full endpoint reference, field definitions, sample responses, quantitative screening tools, benchmark methodologies, and free test access are available to registered users.

Data Feeds

Company Fundamentals & Quantitative Data Feeds

Institutional-grade company financial data and security-level datasets covering US and international publicly listed companies - including financial fundamentals, valuation metrics, profitability analytics, segment and geographic revenue exposure, quantitative screening factors, market structure analytics, industry benchmarking, and market-based signal models.

API Feed

Company Coverage

  • US and international public company coverage
  • Active and delisted company datasets
  • Exchange, currency, ISIN, CUSIP, CIK, LEI and OpenFIGI mapping
  • Fiscal period and time-series company reference data
API Feed

Financial Fundamentals

  • Income statement, balance sheet (assets, liabilities and equity) and cash flow datasets
  • Quarterly, TTM and annual company fundamentals
  • 10+ years of historical financial statement coverage
  • Revenue, EBITDA, operating income and free cash flow metrics
API Feed

Profitability & Efficiency

  • Gross, operating, EBITDA and net margin analytics
  • Return on assets, equity and invested capital metrics
  • Asset turnover, receivable turnover and inventory efficiency
  • Cash conversion cycle and operating efficiency analytics
API Feed

Valuation & Factor Analytics

  • PE, EV/EBITDA, EV/Sales and price-to-book ratios
  • Relative valuation and cross-industry percentile scoring
  • 5-year valuation averages and z-score analytics
  • Composite valuation and factor scoring models
API Feed

Growth & Dispersion Analytics

  • Revenue, earnings and cash flow growth metrics
  • 3-year and 5-year CAGR calculations
  • Revenue, earnings and margin volatility statistics
  • Cross-sectional dispersion and normalization analytics
API Feed

Market Structure & Breadth Analytics

  • Index contribution and constituent impact analytics
  • Equal-weight vs cap-weight participation studies
  • 20DMA / 50DMA / 200DMA breadth participation indicators
  • Relative strength and market breadth momentum analytics
API Feed

Market Performance & Signals

  • Relative strength, momentum and trend signals
  • 3M, 6M, 12M and 24M momentum analytics
  • Rolling beta, downside volatility and drawdown analytics
  • Quantitative trend, momentum and volatility signal models
API Feed

Industry Benchmarking

  • Company vs industry profitability comparisons
  • Cross-industry and sector relative analytics
  • NAICS, SIC, ISIC and GSIC benchmarking
  • Peer-relative performance and valuation analysis
API Feed

Segment & Geographic Analytics

  • Business segment revenue datasets
  • Geographic revenue distribution analytics
  • Regional revenue concentration and diversification metrics
  • Segment growth and operating exposure analysis
API Feed

Corporate, Customer & Market Intelligence

  • Corporate hierarchy and entity relationship datasets
  • Customer concentration and enterprise relationship analytics
  • Market share, peer group and competitive positioning datasets
  • Industry ecosystem and business network intelligence
API Feed

Supply Chain & Dependency Analytics

  • Supplier and procurement relationship mapping
  • Supply chain dependency and operational exposure analytics
  • Customer, vendor and counterparty concentration studies
  • Supply chain risk, diversification and dependency intelligence
API Feed

Shareholder & Capital Allocation

  • Dividend yield and shareholder yield analytics
  • Buyback yield and retention ratio metrics
  • Capital expenditure and reinvestment analysis
  • Sustainable growth and capital allocation indicators
API Feed

Quantitative Rankings & Screening

  • Market capitalization and contribution ranking datasets
  • Relative strength and momentum ranking systems
  • Volatility, liquidity and factor-based screening
  • Active, delisted and data quality validation indicators
API Feed

Insider & Institutional Ownership

  • Insider transactions from Forms 3, 4 and 5
  • Per-company insider buy and sell summaries
  • Insider history by individual filer
  • 13F institutional holdings, holders and quarter-on-quarter changes
  • Ownership concentration analytics
API Feed · New

Company Overview Report

  • AI-ready composite company overview in one call
  • Identity and classification, live market and quant snapshot, TTM headline fundamentals
  • Every section carries a typed status, so an unlicensed section is labelled rather than dropped
  • A figure with a known data-quality issue is flagged, not presented as clean
  • Section coverage expands as later phases ship
API Feed

Research Dossier

  • One call that composes a full company research pack
  • Overview, ratios, quant profile and ownership in a single response
  • Relationships, segments and recent corporate events included
  • Every section gated by your own licence, so you receive what you pay for
API Feed

Company Resolution & Similarity

  • Resolve a name, ticker or CIK to the right issuer
  • Dual-class tickers and recycled symbols handled
  • Semantic discovery from a description of the business
  • Same-industry peer sets by business-description similarity
Company Fundamentals - Endpoints & Documentation

Login or create a free account to access the API section of the dashboard, explore endpoint documentation, test the free API version, review sample responses, and select enterprise or quantitative data API subscriptions tailored to your workflow.

Data Feeds

Industry & Sector Intelligence Data Feeds

Institutional-grade industry and sector intelligence datasets covering growth, profitability, market structure, breadth analytics, concentration studies, valuation, factor modeling, quantitative ranking systems, and economic regime analytics across US and international markets.

API Feed

Industry Coverage & Classification

  • Industry, sector and total market datasets
  • CSIMarket, NAICS, SIC and ISIC classification frameworks
  • Cross-industry benchmarking and taxonomy mapping
  • Time-series industry and sector intelligence datasets
API Feed

Growth & Economic Trend Analytics

  • Revenue, operating income and cash flow growth analytics
  • Quarterly, TTM and annual industry growth metrics
  • 3-year and 5-year CAGR calculations
  • Growth acceleration, trend slope and volatility analytics
API Feed

Profitability & Margin Analytics

  • Gross, operating, EBITDA and net margin datasets
  • Margin trend, volatility and dispersion analytics
  • Return on assets, equity and invested capital metrics
  • Industry profitability benchmarking and ranking systems
API Feed

Market Structure & Breadth Analytics

  • Advance-decline, breadth and participation indicators
  • 20DMA / 50DMA / 200DMA breadth analytics
  • New highs, new lows and breadth momentum studies
  • Equal-weight vs cap-weight market structure analytics
API Feed

Quantitative Factor & Regime Models

  • Momentum, quality, value and growth factor analytics
  • Volatility, leverage and liquidity factor models
  • Composite quantitative scoring and ranking systems
  • Industry regime, trend and volatility state analytics
API Feed

Concentration & Competitive Analytics

  • Market concentration and Herfindahl index datasets
  • Top company concentration and contribution analytics
  • Industry competitive positioning and market structure studies
  • Largest constituent and market share concentration metrics
API Feed

Valuation & Relative Analytics

  • Industry PE, EV/EBITDA and valuation ratio datasets
  • Cross-industry percentile and z-score analytics
  • Relative valuation factor and composite scoring models
  • Industry valuation dispersion and normalization studies
API Feed

Financial Strength & Risk Analytics

  • Debt, leverage and interest coverage analytics
  • Liquidity, solvency and Altman Z-score datasets
  • Financial strength and distress risk scoring models
  • Cash flow stability and balance sheet risk analytics
API Feed

Operational Efficiency Analytics

  • Revenue per employee and productivity analytics
  • Cash conversion cycle and operating efficiency metrics
  • Inventory, receivable and asset turnover datasets
  • Management effectiveness and efficiency composite scoring
API Feed

Cross-Sectional Dispersion Analytics

  • Median, percentile and quartile spread analytics
  • Cross-company standard deviation and dispersion studies
  • Industry distribution and normalization datasets
  • Peer-group variability and statistical ranking analytics
API Feed

Market Performance & Quant Signals

  • Relative strength and benchmark-relative performance analytics
  • Momentum, drawdown and volatility signal models
  • Rolling beta, Sharpe and Sortino ratio datasets
  • Market-based quantitative ranking infrastructure
API Feed

Coverage & Reporting Intelligence

  • Reported company counts and coverage ratio analytics
  • Matched-company growth and consistency datasets
  • Percentage of companies with positive or negative growth
  • Industry reporting breadth and participation intelligence
API Feed

Share Prices, Indices & Rotation

  • Daily quotes and OHLCV history back to 2006
  • Cap-weighted market performance with price breadth
  • Session gainers, losers and most-active names
  • Index benchmarks and sector/industry league tables
  • Market regime plus sector and industry rotation quadrants
  • Any past trading day via a date parameter
API Feed

Point-in-Time Fundamentals

  • Figures as first reported, as later revised, or as of any date
  • Revision vintages preserved rather than overwritten
  • Knowledge time recorded on every observation
  • Built for backtests without look-ahead bias
  • Transaction multiples against the figures known at the time
  • Earnings-announcement calendar: announcement date vs filing date, with the gap
  • Upcoming earnings calendar: the release date a company has announced in advance, for one company or for every company in a date range
API Feed

News & Corporate Events

  • Canonical universal news feed
  • Company, industry, sector and market-wide news
  • Story clusters rather than duplicate headlines
  • Event-typed feed for quantitative work
  • Entity-resolved to the same identifiers as the rest of the API
API Feed · New

Competitive Position & Relationship Graph

  • New: twelve relationship dimensions, adding card networks, payment networks, card processors and technology vendors
  • New: every provenance returned by default, labelled per edge, narrowed in one parameter to company announcements, news, established relationships or general knowledge
  • Disclosed competitor sets, named in the filings
  • Relative revenue share within that disclosed comparison set
  • Competitive ranking and change in position over time
  • Multi-hop graph: neighbourhood, connection paths, indirect exposure
  • Industry rollup and coverage returned with every result
  • Share is measured against the disclosed set, not the total addressable market
Industry & Sector Intelligence - Endpoints & Documentation

Full endpoint reference, field definitions, sample responses, quantitative screening tools, valuation methodologies, benchmarking models, and free test access are available to registered users.

Data Feeds

Bulk & Custom Financial Datasets

Institutional-grade bulk financial datasets and custom data packages covering publicly listed companies, industries, sectors, market structure analytics, fundamentals, quantitative factors, segment intelligence, supply chain analytics, and historical time-series data - designed for enterprise research, AI workflows, quantitative modeling, and large-scale financial data integration.

API Feed

Bulk & Custom Datasets

  • Bulk historical financial and market datasets
  • Custom company, industry and sector dataset creation
  • CSV, API and enterprise delivery formats
  • Client-specific quantitative and research dataset packaging
Bulk & Custom Datasets - Endpoints & Documentation

Login or create a free account to access the API section of the dashboard, explore endpoint documentation, test the free API version, review sample responses, and select enterprise or quantitative data API subscriptions tailored to your workflow.

Quick Start

Example Request & Response

Industry Growth Analytics - TTM
GET https://api.csimarket.com/v1/industries/software-programming/growth?period_type=TTM&api_key=YOUR_API_KEY
JSON Response
{
  "meta": {
    "period_type":        "TTM",
    "classification_type": "CSIMarket",
    "count":               5
  },
  "data": [
    {
      "period_label":             "Q1 2026 TTM",
      "industry_name":            "Software & Programming",
      "company_count":            97,
      "reported_company_count":   96,
      "revenue_yoy":              10.20,
      "operating_income_yoy":     19.59,
      "net_income_yoy":           25.00,
      "free_cash_flow_yoy":       33.71,
      "gross_margin":             71.82,
      "operating_margin":         24.19,
      "net_margin":               21.52,
      "return_on_equity":         18.77,
      "return_on_assets":         9.81,
      "revenue_3y_cagr":          3.26,
      "revenue_5y_cagr":          6.93,
      "growth_quality_score":     82.14,
      "composite_industry_score": 79.43,
      "industry_regime":          "Expansion"
       ......
    

Request API Access

API keys, dataset samples, and documentation on request.

Request API Key View Documentation

Coverage Summary

Companies14,000+
Industries110
Sectors13
History20+ years
PeriodsQ / TTM / FY / YTD
ClassificationsSIC, NAICS, ISIC, CSI
Updated:

Onboarding

Start Using the API in Minutes

Create Account

Register at CSIMarket and activate your subscriber account.

Generate API Key

Issue a scoped API key from your account dashboard.

Make a Request

Call any REST endpoint and receive a structured JSON response instantly.

Integrate

Connect to dashboards, Excel, Python, AI models, or internal data pipelines.

Developer Resources

API Discovery & Metadata

Explore datasets, schemas, field definitions, coverage statistics and OpenAPI specifications.

Documentation

Interactive API Docs

Browse and test endpoints directly from Swagger UI.

Open Documentation →
OpenAPI

OpenAPI Specification

Machine-readable API specification for SDK generation.

View OpenAPI →
Discovery

Dataset Catalog

Explore datasets, coverage, fields and schemas.

Browse Catalog →

Developer/Institutional Access

Explore the Financial Data API

Access live API endpoints, schema documentation, field dictionaries, sample datasets, and test requests directly from your dashboard.

Free Access

Test the API

Create a free account to explore sample endpoints, validate JSON structures, and test live financial datasets.

Schema

Field Dictionary

Browse metric definitions, response structures, period types, classifications, and methodology references.

Developer Portal

Full Endpoint Catalog

View all available API endpoints including industry benchmarks, fundamentals, ratios, market performance, supply chain, segments, and historical financials.

Get Started

Ready to integrate?

Contact our data team for API keys, samples, and documentation.

Integration

Code Examples

# Industry growth - TTM curl -X GET "https://api.csimarket.com/v1/industries/technology/growth?period_type=TTM" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Accept: application/json"
import requests API_KEY = "YOUR_API_KEY" BASE_URL = "https://api.csimarket.com/v1" # Company profitability - TTM resp = requests.get( f"{BASE_URL}/company/AAPL/profitability", params={"period_type": "TTM"}, headers={"Authorization": f"Bearer {API_KEY}"} ) print(resp.json())
<?php $apiKey = 'YOUR_API_KEY'; $url = "https://api.csimarket.com/v1/company/AAPL/growth?period_type=TTM"; $ctx = stream_context_create(['http' => [ 'header' => "Authorization: Bearer {$apiKey}\r\nAccept: application/json\r\n" ]]); $data = json_decode(file_get_contents($url, false, $ctx), true); var_dump($data);
import axios from 'axios'; const res = await axios.get('https://api.csimarket.com/v1/sectors/technology/performance', { params: { period_type: 'TTM' }, headers: { Authorization: 'Bearer YOUR_API_KEY' } }); console.log(res.data);

Differentiation

Why CSIMarket API

  • Institutional-grade industry benchmarking datasets
  • Industry and sector comparative analytics unavailable elsewhere
  • Advanced financial ratio calculations with peer context
  • TTM, Quarterly, Annual, and YTD period structures
  • 20+ years of normalized historical financials
  • Profitability, efficiency, and growth analytics combined
  • Supply-chain and customer/supplier network intelligence
  • Business segment revenue and margin breakdown
  • Structured classifications: SIC, NAICS, ISIC, CSIMarket
  • Coverage transparency - reporting company counts per period
  • Designed for AI, analytics, and enterprise data pipelines
  • DORA-aligned; ISO/IEC 27001-aligned security controls

Audience

Built For

Investment Research PlatformsQuantitative AnalystsHedge Funds & Asset ManagersAI & LLM Financial ModelingFintech ApplicationsTransfer Pricing AdvisorsCorporate Strategy TeamsMarket Intelligence PlatformsAcademic ResearchFinancial Media PlatformsEnterprise Data WarehousesESG & Benchmarking Firms

Licensing

Commercial API Licensing

Structured licensing for internal analytics, client-facing applications, AI modeling workflows, and enterprise financial platforms.

Internal Research Rights
Data use within your organization for analysis, modeling, and reporting.
Client Reporting Rights
Delivery of derived insights or visualizations to your end clients.
Enterprise Platform License
Embedding CSIMarket data into commercial SaaS or analytics products.
AI / LLM Modeling Rights
Training, fine-tuning, or retrieval-augmented generation (RAG) use cases.
Redistribution Agreements
Structured redistribution of normalized datasets to third parties.
Data Delivery Agreements
SFTP, S3, Snowflake, or Databricks bulk delivery contracts.

Stack Compatibility

Integration Ready

Connect CSIMarket datasets directly into your existing stack.

PythonRExcel / VBAPower BITableauSnowflakeDatabricksAWS S3Amazon RedshiftGoogle BigQuerySageMakerREST / JSONSFTP Bulk DeliveryAI & ML Pipelines

Delivery

Response Format

Structured JSON with standardized field naming, period metadata, coverage counts, and update timestamps.

JSON & NDJSON CSV long/wide form Parquet (ML/RAG) Bulk ZIP archives SFTP delivery

Cadence

Data Freshness

  • Daily dataset refresh cycles
  • Continuous earnings season updates
  • Quarterly statement ingestion
  • Historical revision tracking
  • TTM rolling recalculation

Security

Authentication

Secure API keys per organization. Optional IP whitelisting, HMAC request signing, scope-based access, rate tiers, and GeoIP enforcement for enterprise clients.

Machine Readable Discovery

API Metadata & Discovery Endpoints

FAQ

Frequently Asked Questions

What financial data APIs does CSIMarket provide?

CSIMarket provides REST JSON APIs covering stock market data, company fundamentals, industry benchmarks, sector analytics, supply-chain intelligence, and business segment data for 14,000+ publicly listed companies across 110 industries.

What time periods are available in the CSIMarket API?

The API supports TTM (trailing twelve months), quarterly, annual, and YTD period structures, with 20+ years of normalized historical financial data.

Can I use the CSIMarket API with Python, Excel, or Snowflake?

Yes. CSIMarket API feeds integrate with Python/pandas, Excel/VBA, Google Sheets, Power BI, Tableau, Snowflake, Databricks, AWS S3, Amazon Redshift, Google BigQuery, SageMaker, and REST API applications.

How do I get access to the CSIMarket financial data API?

Register for a CSIMarket subscriber account, generate an API key from your dashboard, and start calling REST endpoints immediately. Enterprise and commercial licensing is available by contacting data.info@csimarket.com.

What industry classification systems does CSIMarket use?

CSIMarket supports SIC, NAICS, ISIC, and the proprietary CSIMarket classification framework, covering 110 industries and 13 sectors.

Is the CSIMarket API suitable for AI and machine learning workflows?

Yes. CSIMarket datasets are structured for AI, LLM, and machine learning workflows including training, fine-tuning, retrieval-augmented generation (RAG), quantitative factor modeling, and automated financial research pipelines.

Enterprise

Request API Access

For API keys, samples, documentation, or enterprise licensing: data.info@csimarket.com

Reference: https://csimarket.com/api/api

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