FinFeed API - Coming soon: Flat Files

Flat Files S3 Gateway API

Secure and efficient way to access stock market data. It provides access to data stored in S3 as flat files, ensuring security and ease of integration

Get A Free API Key Docs coming soon!

11K+

Companies

99.99

SLA uptime

Historical market data

Integrations in progress

What you get

Historical stock prices

T+1 data on 11K+ symbols with unlimited historical data loopback period

CSV data format and storage

Data is stored in compressed ASCII text files in CSV format

Pull-based S3 API

Retrieve data on-demand easily using S3-compatible tools and libraries.

High redundancy

With servers all over the world, you can access accurate data anytime with no data errors.

Organized structure

Each CSV file follows a consistent format, making it easy to trackprices and market data across different time periods.

File split methodology

Each data type is organized into individual files for each symbol and trading day (UTC), streamlining access and facilitating more straightforward analysis

Use cases

Algorithmic Trading

Build and backtest trading strategies with high-quality historical data. Access tick-by-tick information for precise algorithm development.

Risk Management

Analyze market trends and volatility patterns to build sophisticated risk models. Access correlation data across multiple asset classes.

Financial Research

Conduct deep market analysis with decades of historical price and volume data. Track market anomalies and test theories with comprehensive datasets.

Custom analytics

Develop bespoke solutions tailored to specific business needs, utilizing historical trading data for specialized insights and reporting

Data types

Quotes

Trades

Order book

Unbeatable market data quality

FinFeedAPI provides comprehensive, unfiltered access to historical and real-time financial market data through a sophisticated data processing infrastructure. Our system ingests 100% of the messages distributed by stock exchanges, including all administrative messages (both system-wide and symbol-specific), Level 1 quotes, Level 2 price levels, Level 3 order book data, and complete trade information. For currency trading we provide the most accurate real-tine and historical exchange rate data for thousands of trading pairs including crypto and fiat currencies.

The distributed and resilient infrastructure ensures that quantitative analysts, algorithm developers, researchers, and other financial technology professionals have access to the most complete and accurate market data possible, without any filtering or gaps that could introduce bias or limit analytical capabilities.

Our API documentation provides detailed specifications for each endpoint, response format, and query parameter, making it straightforward to integrate this comprehensive data into your existing workflows, analysis tools, or trading systems.

Built by the Team behind CoinAPI

We've served billions of crypto API requests. Now we're bringing that same reliability and simplicity to stock market and currency exchange data. One clean API. All the data you need. Nothing you don't.

Historical stock prices

Data on 11K+ companies with unlimited historical data loopback period

Real time & historical currency prices

Access up-to-date and historical pricing between fiat and crypto assets with a single request.

Reference data

Company profiles, corporate actions, and market events - all structured, normalized, and ready to use.

REST API

Stateless API providing the widest range of data.

WebSocket API

Real-time updates about currency prices for applications that need continuous data feeds, such as trading platforms or live dashboards.

FIX API

High-speed protocol for real-time financial data exchange between liquidity providers, traders, and regulators.

Unified API interface

Access our full range of financial data through a single, unified API ecosystem

Custom integrations

Integrate our stock data API with your project, regardless of its size, tech stack and architecture

Docs & SDK

Best in class documentation allowing you to connect our API in minutes

Market Data in Clear and Easy-to-Use CSV Files

MonthlyAnnual

Pay As You Go

Perfect for early-stage projects and variable usage patterns

Metered

monthly

Try for free

$25.00 Free Credits
Volume Discounts
Unlimited historical data loopback period
Email Support

Enterprise

Custom packages with dedicated support, SLA guarantees, and advanced features

Custom

monthly

Contact sales

All Features of Lower Packages
Custom Limits & Quotas
Project Tailored SLAs
Premium Support
Latency SLA
Bundle options with other FinFeedAPI and CoinAPI products

Market Data in Clear and Easy-to-Use CSV Files

Flat Files Pay As You Go

Enterprise

Protocols

REST API

S3 API

API Requests

GET Requests

$10 per 1K requests

Custom

Included Data transfer

Limit Order Book

$1 per GB

Custom

Quotes/BBO

$1 per GB

Custom

Trades/Transactions

$3 per GB

Custom

Support & Services

Support

Basic

Premium

Access to dedicated Slack channel

$200/m

Customer Success Representative

SLA for uptime & latency

Onboarding

Self-serve

Transparent, scalable, usage-based pricing

API Requests

API requests are made to our servers to retrieve data of specific type. Each time you perform any action using our API, it counts as one API call.

API Call Type

Price

GET

$10 per 1K calls

Frequently Asked Questions

What are flat files?

Can I request custom data sets or specific time ranges?

Are there any limitations on data usage or download size?

What payment methods do you accept?

How will I be invoiced?

Can I pay by invoice?

Do I need a credit card to get started?

What happens if my payment fails?

How can I obtain usage credits?

Can I receive refund for my credits?

Do my usage credits expire?

What support is available if I encounter issues with Flat Files?

What is the difference between standard and premium support?

How is the enterprise pricing determined?

Can I switch between pricing plans?

Can I request custom data sets or specific time ranges?

Is there a discount for annual payment?

Can I test the API before committing to a paid plan?

Need advice? Get in touch with our experts

Let's Chat!

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Great tool for any market sector

How we can help you

Algorithmic Trading Development and Backtesting

Build and test trading algorithms against complete historical data. Analyze order flow dynamics with nanosecond precision. Develop market-making strategies with full order book visibility.

Risk Management Solutions

Analyze historical market conditions to improve risk models. Study past auction imbalances, short sale restrictions, and trading halts. Research market behavior during circuit breaker events.

Academic and Research Purposes

Analyze market microstructure with detailed order book data. Study price formation processes and market impact. Research trading patterns and order flow dynamics.

Market Surveillance and Compliance

Backtest surveillance algorithms against complete data sets. Analyze historical short sale price tests and restrictions. Validate best execution requirements against historical markets.

Trading Strategy Optimization

Test strategies against complete historical market conditions. Benchmark performance against unfiltered market data. Optimize execution algorithms with full order book history.

Online Marketplaces

Empower global commerce with accurate, real-time currency data for buyers, sellers, and transactions across borders.

Smarter Financial Products

Whether you're offering cross-border payments, multi-currency accounts, or investment analytics, FinFeedAPI provides the accurate and up-to-date currency data you need to stay ahead in a highly competitive market.

Trade & Supply Chain

Real-time and historical currency data that powers global payments, procurement, and reporting.

Is your industry not on the list?

FinFeedAPI delivers real value across industries, helping developers build powerful apps, marketers create data-backed campaigns, analysts uncover insights, and traders make smarter decisions. Our products works for diverse business needs at a price point that makes sense for companies of all sizes. No matter your finances and data requirements, you can be up and running quickly without a huge investment.

Talk to us