Financial Data APIs: best apps and software

DefiLlama

DefiLlama is a DeFi TVL aggregator that offers accurate data on Total Value Locked, revenue, fees, and prices across DeFi protocols with real-time updates.

Messari

Messari offers market intelligence and analytics tools for cryptocurrency, providing users with data and insights to support informed investment decisions.

geckoterminal

GeckoTerminal provides real-time cryptocurrency price charts and market data from over 1,300 DEXs across various blockchain networks for informed trading decisions.

Zerodha Kite Connect

Zerodha Kite Connect is a trading platform offering APIs for stock trading, advanced order types, and extensive charting capabilities for market analysis.

Plaid

Plaid is a platform that connects bank accounts to apps for managing finances, payments, and user identity verification securely.

Glassnode

Glassnode is a blockchain data platform that provides on-chain and off-chain metrics, analytics tools, and insights for trading and market research in digital assets.

Quartr

Quartr is a financial app providing access to live earnings calls and investor relations data from over 12,000 public companies for professionals and investors.

Fiscal.ai

Investment research platform and API providing public company financial data, AI-assisted summaries and chat, stock screeners, filings, earnings calendar, analyst ratings, and notifications.

Signal21

Signal21 provides comprehensive research and data on Bitcoin, including its layers and Dapps, through interactive dashboards, custom queries, and API access.

Databento

Databento provides easy access to real-time and historical financial data on US equities and futures, with customizable formats and user-friendly APIs.

Crypto APIs

Crypto APIs provides Web 3 infrastructure for blockchain applications, offering tools for wallets, data management, and trading automation through REST and WebSocket APIs.

Polygon.io

Polygon.io provides free real-time and historical financial data APIs for stocks, forex, and cryptocurrencies, suitable for developers building financial applications.

Ask Edgar

Uses AI to analyze SEC filings and news to identify upcoming company events and catalysts that may affect stock prices.

Free Currency API

The Free Currency API provides real-time and historical exchange rate data for developers to integrate currency conversion features into applications.

Financial Modeling Prep

Financial Modeling Prep is a data platform providing accurate financial market data and APIs for investors and developers, covering over 70,000 securities globally.

RootData

Aggregates verified data on cryptocurrency projects—funding rounds, teams, token metrics, prices, social metrics and on‑chain fund tracking—and offers APIs plus project management for verified teams.

CryptoCompare

CryptoCompare provides real-time cryptocurrency market data, analysis tools, and insights to help users track and understand market trends and investment opportunities.

SnapTrade

SnapTrade is an API that connects financial applications to brokerages and crypto exchanges, enabling account management and trade execution.

Twelve Data

Twelve Data provides real-time and historical financial market data for stocks, forex, cryptocurrencies, and more, with APIs for easy integration and analysis.

Fuse

Fuse is an app that provides a unified API to connect financial accounts, improving connection success and reducing disconnections.

PolyTest

Backtesting API for Polymarket that replays historical orderbooks to test BTC, ETH, and SOL trading strategies before live trading.

Nomics

Nomics provides real-time cryptocurrency market cap rankings, historical prices, and supply data for various digital assets like Bitcoin and Ethereum.

Tink

Tink is an open banking platform that connects accounts, enables payments, and provides financial insights for effective money management.

Fintoc

Fintoc is a financial tech app that enables account-to-account payments, securely aggregates financial data, and integrates with financial institutions in Mexico and Chile.

Rutter

Rutter is a Unified API that simplifies B2B financial product integration, allowing developers to connect with various platforms efficiently.

Codat

Codat provides a platform for banks to access and analyze customers' financial data, streamlining business lending and improving underwriting processes.

IEX Cloud

IEX Cloud is a financial data platform that offers real-time and historical financial data, tools, and services for developers and analysts.

Belvo

Belvo is an open finance platform in Latin America that connects businesses to financial data, enabling informed decisions and automating payments.

CBN-Data

CBN-Data provides structured financial data on global markets, including bonds, stocks, and corporate information, accessible via API and Data Feed solutions.

finbar

Finbar provides real-time, cleaned financial data and time series from thousands of companies, allowing users to update models quickly and efficiently.

妙想

An AI-powered financial app for investors that provides real-time market data, stock screening, risk alerts, and structured financial analysis across stocks, funds, bonds, and macro data.

Finexer

Finexer simplifies financial processes for UK businesses through open banking solutions, offering real-time data, secure transactions, and tools for compliance and analytics.

Flinks

Flinks connects businesses to customers' financial accounts to enhance data use for improved digital products in various sectors like lending and FinTech.

Finage

Finage provides real-time and historical market data APIs and WebSocket feeds for equities, forex, cryptocurrencies, indices, and ETFs for integration into apps, trading systems, and analysis.

Yapily

Yapily connects users to banks in Europe, enabling secure access to financial data and payment processing for various industries through its open banking API.

Financial Datasets

Financial data platform and API providing structured market data, company fundamentals, SEC filings, earnings content, and real-time information for research and analytical applications.

CurrencyFreaks

CurrencyFreaks provides real-time exchange rate data for 702 currencies, including fiat, cryptocurrencies, and precious metals, for informed financial decisions.

Meyka AI

Meyka is an AI stock research platform providing real-time global market data, stock grades, 7-year price forecasts, and an API for developers with pay-as-you-go pricing.

Currencyapi

Currencyapi provides an API for real-time and historical currency exchange rate conversions, suitable for developers integrating financial data into applications.

Mono

Mono is an app that enables companies to access customer bank account data and facilitate direct debits from those accounts in Africa.

Dapi

Dapi is a FinTech API that connects to users' bank accounts, enabling secure transfers, data access, and financial transaction management for applications.

Bavest

Provides real-time financial, ESG, and alternative data plus AI-based portfolio analytics via a modular API.

Pinwheel

Pinwheel connects payroll systems to apps, providing real-time income data and enabling direct deposits to enhance financial services for consumers and businesses.

Striga

Striga provides compliant crypto and banking APIs for developers in Europe, facilitating integration of crypto and banking services.

Railz

Railz is a financial data integration platform that connects SMBs with real-time accounting insights and analytics through a single API.

Integration Labs

Integration Labs provides a unified API for B2B companies to access and sync financial data from over 30 accounting, payments, and e-commerce platforms.

Fidel API

Fidel API provides tools for developers to create solutions that track and manage transactions across payment cards, including receipts, loyalty, and expense management.

TapeTide

AI-powered Indian stock research app with live prices, financials, ratios, charts, screeners, and market data for screening and analysis.

H.api

Provides live mortgage interest rates via a single API call for displaying real-time rates on websites or apps.

Increase

Increase provides banking APIs for technology companies to manage money, including storage, transfers, and reconciliation.

DEHY

Real-time SEC filings intelligence app for analysts, structuring Form 4, 13F, 13D/G, 8-K, earnings, and Congress trades into searchable data.

Triqai

API that turns bank transactions into categorized merchant data, including names, logos, categories, locations, and confidence scores.

sieve

Sieve cleans and extracts accurate financial and investment data, combining AI and human review via a simple API that integrates into existing ELT pipelines.