Best Financial Data APIs - Page 16

How Many Financial Data APIs Products Does G2 Track?

Total Products under this Category: 252

Category Stats (Sep 2026)

  • Average Rating: 4.41/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Crunchafi Data Extraction (formerly Strongbox) (+1.87%) - Among all products in this category, Crunchafi Data Extraction (formerly Strongbox) recorded the largest rating increase compared to last month

Last updated: September 15, 2026

How Does G2 Rank Financial Data APIs Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 1,500+ Authentic Reviews
  • 252+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Financial Data APIs

G2 Grid® for Financial Data APIs plotting products by satisfaction and market presence

Highlighted products: Plaid, Stripe Connect, Merge Unified, Spade, Finch, Apideck Unify, Crunchafi Data Extraction (formerly Strongbox), and Mastercard API.

Underlying data: [Grid® JSON](https://www.g2.com/categories/financial-data-apis/grids.json?focus%5B%5D=plaid&focus%5B%5D=stripe-connect&focus%5B%5D=merge-unified&focus%5B%5D=spade-spade&focus%5B%5D=finch-finch&focus%5B%5D=apideck-unify&focus%5B%5D=crunchafi-data-extraction-formerly-strongbox&focus%5B%5D=mastercard-api)

SmoothIntegration

SmoothIntegration simplifies financial data integration by providing a unified API that standardizes data across various business platforms, including Xero, QuickBooks, Sage, MYOB, FreshBooks, and FreeAgent. Our platform ensures seamless synchronisation of financial data, allowing businesses to focus on growth without the complexities of managing multiple integrations. We prioritize data security by adhering to ISO27001, SOC2, and GDPR standards, with data securely hosted in Europe. Our scalable solutions cater to startups, hobbyists, enterprises, and in-house projects, offering flexible pricing plans to suit diverse needs. By handling authentication flows, rate limiting, data normalisation, and consistent change detection, SmoothIntegration delivers a reliable and efficient integration experience for businesses of all sizes.

Who Is the Company Behind SmoothIntegration?

stock-api

"Intelligent Stock, & Financial News API. This API allows users to get access to latest Financial Data on Stocks, Company Fundamentals and also gives you Financial News Behind each company while also giving you data on which stocks are trending on social media, and by leveraging social media, you can easily get a summary of the financial news by company stock ticker, and also recent social media trends and their Sentiment."

Who Is the Company Behind stock-api?

  • Seller: RapidAPI
  • Year Founded: 2015
  • HQ Location: San Francisco, California
  • Twitter: @rapid_api
    111,927 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    339 employees on LinkedIn®

Structured Finance APIs

The Structured Finance API has been integrated with many specialized ALM, trading, valuation and risk analytics providers in the fixed-income space.

Who Is the Company Behind Structured Finance APIs?

Sync by Paybook

Sync is a RESTful API that transforms raw financial data into an organized, easy-to-use, JSON format.

Who Is the Company Behind Sync by Paybook?

  • Seller: Paybook
  • Year Founded: 2011
  • HQ Location: Austin, US
  • LinkedIn® Page: www.linkedin.com
    31 employees on LinkedIn®

Taiki

Universal API for Tax Documents Auto-extract tax forms and data from payroll and financial providers. Help your users skip manual document uploads.

Who Is the Company Behind Taiki?

  • Seller: Taiki
  • Year Founded: 2024
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    3 employees on LinkedIn®

TapiX

Meet TapiX, Dateio’s API-based service that enriches payment data in real-time and returns precise information about transaction identification. TapiX REST API enriches payments data with the company logo, accurate company name, GPS, business category, google place ID, company URL, and detects subscriptions. We are also recently piloting income detection and transfer enrichment. The enriched data provides a thorough source to make real-life business decisions based on a true understanding of their clients.

Who Is the Company Behind TapiX?

Tax ID Check

Tax ID Pro is the best solution for any form with a tax ID input. Intelligent real-time messages provides guidance for invalid numbers. The API can be implemented in minutes and validate over 200 tax ID formats for over 100 countries. Intelligent real-time feedback provides guidance for invalid numbers. The response includes helpful information like the name of the format, and a compact and standard representation of the tax ID number.

Who Is the Company Behind Tax ID Check?

Technology Service Provider (TSP) for Account Aggregators

Digitap is a certified TSP (Technology Service Provider) which develops modules to obtain Financial information of a customer (including the bank statement information) directly from the banks (through APIs) using Account Aggregator framework.

Who Is the Company Behind Technology Service Provider (TSP) for Account Aggregators?

  • Seller: Digitap.AI
  • Year Founded: 2019
  • HQ Location: Bengaluru, IN
  • Twitter: @DigitapAI
    16 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    128 employees on LinkedIn®

Tetrium

Tetrium is building the next generation of global payments infrastructure. We connect traditional finance with digital assets—powering seamless pay-by-bank, stablecoin, and cross-border settlement solutions for financial institutions, fintechs, and enterprises. Our mission is simple: make money movement faster, cheaper, and borderless. With a focus on emerging and developed markets alike, Tetrium aggregates rails across banks, payment providers, and blockchain networks into a single platform—helping our partners unlock new revenue streams and deliver better experiences for their customers. From yield-generating treasury solutions to real-time settlement, Tetrium provides the infrastructure for a more open and efficient financial system.

Who Is the Company Behind Tetrium?

The Ninth Wave Platform

Ninth Wave enables financial institutions of all sizes to embrace open banking and open finance strategies, while protecting customers’ privacy and minimizing security and compliance risks. Our platform provides turnkey API connectivity controlled by the FI through a single, secure point of integration for apps, aggregators, and other software tools. It empowers financial institutions to seamlessly share permissioned data with the apps and solutions their customers’ prefer – personal financial management and wellness tools, ERP and accounting applications, wealth management and investment portals, tax prep software, and more. This eliminates the time and cost required for internal IT teams to build and maintain connections, while providing a clear path to eliminate screen scraping and its inherent risks.

Who Is the Company Behind The Ninth Wave Platform?

Tink

Allow your customers to safely make payments and transfers from anywhere, to anywhere, entirely within your app or website. Increase engagement and retention, while optimising digital sales.

Who Is the Company Behind Tink?

  • Seller: Visa
  • HQ Location: Foster City, California, United States
  • Twitter: @visa
    416,239 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    28,914 employees on LinkedIn®
  • Ownership: NYSE: V
  • Total Revenue (USD mm): $15,082

Tradefeeds API & Database

Tradefeeds API & Database offers customers a wide variety of data products available through API seamless integrations and downloadable databases in CSV and Excel format. The product portfolio contains the following data products: company information, SEC filings, financial statements data, financial ratios, analyst ratings, technical indicators, mutual funds and ETFs, stock and company identifiers, stock search trends and macro trends. The data covers publicly traded companies from different geographical locations.

Who Is the Company Behind Tradefeeds API & Database?

Traders Union Widgets

Traders Union Widgets: Professional Analytics for Your Website Enhance your platform with free, high-quality analytical tools. Traders Union widgets https://tradersunion.com/widgets/ provide real-time quotes, interactive charts, and comprehensive market data without complex API integrations or custom coding. Unlike restrictive solutions that redirect traffic to external resources, these tools keep users engaged on your page. Seamlessly integrate reliable financial instruments in minutes, delivering professional-grade market analysis directly within your environment.

Who Is the Company Behind Traders Union Widgets?

Traive

Traive is a fintech company dedicated to revolutionizing agricultural finance by connecting the entire credit chain—from farmers to capital markets—through advanced technology. By leveraging artificial intelligence and automation, Traive streamlines credit processes, reduces costs, minimizes risks, and enhances governance within the agricultural sector.

Who Is the Company Behind Traive?

  • Seller: Traive
  • Year Founded: 2018
  • HQ Location: São Paulo, BR
  • LinkedIn® Page: www.linkedin.com
    76 employees on LinkedIn®
Nathan Calabrese
NC
Researched and written by Nathan Calabrese
Updated October 3, 2024