Best Unified APIs with a Free Trial

Boss Insights’ platform digitizes lending to grow relationships between banks and their business clients. Thanks to Amazon style advancement, there is a growing divide between lenders’ service and businesses’ expectations. Banks excel in regulation, however, operate with limited information on their business clients (out of date and gathered manually). Boss Insights’ API hub empowers lenders to bridge the divide. APIs are the most efficient way to digitize existing processes enabling accelerated service and a complete view in real time. The platform is used to accelerate SBA, SMB and Commercial Lending from months to minutes. It also supports cross-selling products empowering banks and credit unions to proactively serve customers.

Apideck eliminates the complexity of integrations with a single real-time API that connects to 200+ platforms across CRM, Accounting, HRIS, File Storage, and eCommerce without the technical overhead. Instead of spending months building and maintaining multiple integrations, SaaS companies go to market 98% faster while we take care of maintenance, versioning, and infrastructure. Our platform lets you focus on business growth while we handle the integrations, so you can launch faster, cut costs, and scale without limits. Why leading SaaS teams choose Apideck: ✅ One platform, unlimited integrations – No need to build or maintain separate integrations. ✅ Real-time data – No caching means instant, up-to-date information. ✅ Flexible, cost-effective pricing – API call-based, so you only pay for what you use. ✅ Enterprise-grade security – GDPR & SOC2 Type 2 compliant. ✅ Mission-critical reliability – 99.8% uptime SLA with 24/7 support.

Unified shopping platform API integration solution. API2Cart is a unified shopping platform data integration interface that makes a connection with multiple shopping cart software APIs simple and effective. Service supports integration with 45+ eCommerce platforms, including Magento, Shopify, Wix, Amazon, Otto, PrestaShop, OpenCart, VirtueMart, BigCommerce, WooCommerce. It can be used by software vendors who work in the sphere of Mobile Commerce, Social Commerce, Marketing Automation, Inventory Management, Order Management, Shipping Management, Dropshipping Automation, and others. KEY FEATURES: 1) A unified approach to integration. You integrate once and get connected to as many shopping platforms as you need. 2) Scalable infrastructure. Flexible architecture allows adding a growing number of customer stores. 3) Focus on data security and the convenience of your customers. SSL certificate and OAuth make data interaction secure.

Codat helps banks build deeper connections with business customers. We offer products that make it easy to access, synchronize and interpret data from customers’ financial software for specific use cases, such as onboarding suppliers to commercial card programs and underwriting business loans. Codat is used by the largest banks in the world to grow share of wallet, reduce churn & scale their operations. We are backed by leading investors including JP Morgan, Canapi Ventures, Shopify, Plaid, Tiger Global, PayPal Ventures, Index Ventures and American Express Ventures.

Gather and display Instagram images, Tweets, Facebook posts, and more on any digital service to increase time spent on site and drive conversions. Increase time spent on site with fresh and engaging content. Improve conversion rates with social proof. Grow engagement and followers on social media. Start by selecting Hashtags, Usernames, and Pages from social media channels such as Instagram, Facebook, Twitter, Youtube, Pinterest, and more. For example, add hashtags and usernames on Instagram that you’d like your feed to display. You can combine multiple social media channels and show them all in one place! With Flockler, you can display the content you’ve gathered with multiple layouts. You can create as many Walls, Grids, Carousels, and Slideshows as you like and display them on an unlimited number of websites, mobile apps, intranets, and digital screens for the same subscription fee.

We make it easy to install apps, tags, and integrations on your website and track your analytics using a simple unified API. Add or remove new 3rd party integrations by updating your stack. Not making changes to your code. We're adding new integrations every day for you to try. Track your customer events data and analytics with Stackpile and have it automatically sent to all your connected apps, tools and integrations. Making sure all your 3rd party apps and integrations are up to date with the latest version can be a pain. With Stackpile we do that for you. Use our Unified Analytics API to track custom events and user identifications. Stackpile allows you to save time and development costs by sending data to all your apps and integrations without implementing each API separately. Without Stackpile you need to implement a code snippet for each integrations you want to install. After adding Stackpile you can install any of our supported apps, tools and integrations with one click.

The world is moving towards more standardized, open, and interconnected data systems. However, employment infrastructure remains complex, closed, and fragmented. Our mission is to democratize access to the infrastructure that underpins the employment sector and unlock much-needed innovations and create tremendous economic activities for both employers and employees. Seamlessly connect to payroll and HR systems. Employee data is dispersed across many closed systems. Finch smoothes over the difference between systems and unifies access with a single integration to support many innovative use cases. As we add new systems, you can turn them on in one click. Let employers grant your application access to their payroll and HR systems. Finch Connect makes this process instant, secure, and compliant. We obsess over the right abstractions and the developer experience to design the simplest, yet most powerful, API interface for payroll and HR systems.

Smartcar’s vehicle API enables you to verify mileage, manage EV charging, issue digital car keys, track fleets, and much more. Smartcar enables mobility businesses to integrate their apps and services with connected cars. Easily retrieve vehicle data and trigger actions with our simple and secure car API. Track a vehicle’s location, verify mileage, charge an EV, share a virtual key, and more. With our Smartcar Connect flow, your customers can instantly and effortlessly link their cars to your app. All it takes is four clicks directly from your mobile application or web portal. Our friendly documentation and SDKs allow you to quickly integrate our car API with every tech stack.

​Propexo is a unified API platform designed to streamline integrations with leading property management systems. It enables engineering teams to implement integrations in weeks rather than months, thanks to its modern API and clear documentation. Propexo handles the maintenance of integrations, mitigating issues caused by changes in PMS platforms, allowing teams to focus on building customer-centric features. By offering a single integration that works across multiple PMS platforms, Propexo simplifies the development process and accelerates time-to-market for proptech solutions. It provides a robust developer experience with features like webhooks, comprehensive documentation, and Slack support. Propexo's unified data model ensures consistent data handling across different systems, enhancing reliability and efficiency. Trusted by fast-growing companies in the proptech industry, Propexo empowers businesses to save time, reduce costs, and unlock new revenue streams.

Unipile is a unified API designed to integrate multiple communication channels, messaging, email, calendar, and more, into your software application. It provides over 500 endpoints that enable developers to connect platforms such as LinkedIn, WhatsApp, Instagram, Gmail, Outlook, and IMAP into a single unified inbox. With Unipile, you can send and retrieve messages across channels, manage calendars (Google/Outlook), sync conversations in real time, and maintain full historical context across channels. The API supports functions such as starting chats, retrieving message threads, scheduling events, and connecting profile data, all through the same interface. Use-cases include ATS/CRM software publishers, outreach tools, no-code builders, and AI agent platforms, anywhere multi-channel communication needs to be embedded into an application. Unipile also emphasizes rapid integration, developer-friendly documentation, and live support.

Zernio is a unified social media API platform that enables developers and AI agents to publish, schedule, and manage content across 14+ social networks through a single integration. Instead of building separate integrations with each platform, developers make one API call and Zernio handles authentication, media formatting, rate limits, and platform-specific requirements. The platform supports post scheduling, content management, comments and DMs automation, analytics tracking, ads management, and media uploads. It integrates with Instagram Business and Creator APIs, TikTok Business API, LinkedIn, YouTube, Twitter/X, Facebook, Pinterest, Reddit, Threads, Bluesky, and WhatsApp Business API. Features include automatic token refresh, webhook notifications, and rate limit management. Built for SaaS companies, agencies, and AI agent builders, the product is fully white-label.

Deliver an end-to-end patient experience that integrates in real-time with your practice management system. The only solution that reads and writes data in real-time with your practice management system. We spend most of our engineering resources on creating the best bidirectional integrations with EHR and practice management systems. Now you can develop and deploy your product in weeks, not years. Our engineers consume our own API to build our own doctor-facing SaaS product, so you know you will always get an experience that is tested and can scale. Online patient scheduling allows visitors to see your availability in real-time and schedule appointments on-demand from any location or device. NexHealth scheduling software fully customizes your schedule right out of the box. Our team of product experts helps implement both your calendar of record and your EHR system – no matter how complex your schedule.

Railz is building the largest financial data network by bridging the connection between future-thinking financial institutions and real-time accounting data. Railz accomplishes this through an API that connects financial institutions to all major accounting software solutions, such as QuickBooks, Xero, and Sage. We offer financial institutions (FIs) the ability to connect with account service providers, collect data, normalize and sanitize that accounting data, and analyze it. Railz enables on-demand access to financial transactions, analytics, insights and reports on small and medium business (SMB) customers. Whether you’re a lender, financial institution, accounting firm, auditor, or startup developer that requires financial data, we can make this a reality for you - and fast.

Argyle is the leading provider of direct-source access to real-time income and employment data. With Argyle, companies automate critical workflows—including income and employment verifications, deposit switches, wage advances, and loan repayments—so they can build better, more efficient processes, reduce risk, and scale their business. Argyle largely serves the mortgage, background checks, personal lending, and banking industries as well as the gig economy.

hotglue enables developers to offer native, user-facing SaaS integrations to your customers in minutes without sacrificing control over the data. By embedding hotglue into your web app, customers can connect their 3rd party SaaS apps without leaving your application, and you can confidently ingest any data you need scalably. Plus, our open source library of connectors enables you to offer more integrations to your users without using development resources.

BuiltAPI is a low-code integration platform designed for the real estate investment and asset management industry. It connects siloed systems, normalizes fragmented data, and automates reporting across portfolios. With connectors to leading property, finance, and ESG platforms, BuiltAPI eliminates manual file handling and reduces onboarding time for new assets. Its flexible API framework supports standardized data models for valuation, performance, and sustainability metrics, enabling scalable automation of recurring workflows. BuiltAPI helps asset managers, fund controllers, and valuation teams gain faster access to reliable, auditable information. By providing a single integration layer, it improves transparency, reduces operational risk, and ensures compliance with evolving regulations such as CSRD. The platform is trusted by institutional investors and service providers to power digital transformation in real estate, delivering secure, efficient, and data infrastructure.

Tray.ai is an API integration platform that allows users to innovate, integrate, and automate organization with no developer resources needed. Tray.io enables users to connect their entire cloud stack on their own. With Tray.ai, users can easily build and streamline processes with a specifically designed visual workflow editor. Tray.io also empowers the users' workforce with automated processes. The intelligence powering the first iPaaS that everyone can use to complete business processes using natural language instructions. Tray.ai is a low-code automation platform designed for both non-technical and technical users to create sophisticated workflow automations that facilitate efficient data movement and actions across multiple applications. Our low-code builder and new Merlin AI transform the automation process by bringing together the power of flexible, scalable automation; support for advanced business logic; and native generative AI capabilities that anyone can use.

Our vision is to empower the pioneers of tomorrow by providing the richest and most robust data infrastructure for the entire blockchain ecosystem. Explore and contribute to the absolute richest blockchain data on the internet. Aggregate historical balances, positions and PnL across dozens of DeFi protocols to build rich and compelling interfaces for your users. Build analytical dashboards showing price trends, liquidity and ROI of assets. Explore our quick start tutorials, how-to guides, example code, and more to easily integrate blockchain data in your project using the Covalent API. Covalent provides a unified API to bring full transparency and visibility to assets across all blockchain networks. Simply put, we have a single API which allows you to pull detailed, granular blockchain transaction data from multiple blockchains with no code.

Unizo is an integration fabric for cybersecurity, IT, and AI platforms. It provides Unified APIs, Webhook Exchange, and MCP server support across 150+ vendors including EDR, SIEM, IAM, vulnerability management, ticketing, and cloud security tools. Security and DevOps product teams use Unizo to ship 40+ integrations in weeks, eliminate maintenance overhead, and deliver AI-ready normalized data. SOC 2 Type II certified.