Compare the Top API Marketplaces as of December 2025

What are API Marketplaces?

API marketplaces are online marketplaces that provide access to Application Programming Interfaces (APIs) for developers. API marketplaces enable developers to integrate different APIs and data and quickly add new features or capabilities into their applications. There is a wide variety of APIs available in API marketplaces, ranging from payment services, content delivery networks, analytics tools, and many more. API Marketplaces are a great resource for software development teams who want to rapidly prototype applications without spending excessive time writing code. Additionally, they can help reduce development costs by offering pay-as-you-go models as well as free plans with basic integration capabilities. Compare and read user reviews of the best API Marketplaces currently available using the table below. This list is updated regularly.

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    Zapier

    Zapier

    Zapier

    Connect your apps and automate workflows. Easy automation for busy people. Zapier moves info between your web apps automatically, so you can focus on your most important work. Link your web apps with a few clicks, so they can share data. Pass info between your apps with workflows called Zaps. Build processes faster and get more done—no code required. Discover how Zapier makes automation accessible to everyone. Stick with the tools that work for you. Zapier connects more web apps than anyone, and we add new options every week. We integrate with apps such as Facebook Lead Ads, Slack, Quickbooks, Google Sheets, Google Docs, & many more! Our editor was made for do-it-yourself automation. Set up Zaps without developer help. Use Zapier’s built-in apps to create powerful workflows without using separate services. More than 3 million people rely on Zapier to take care of their tedious tasks. Zapier Agents allow businesses to automate real-world tasks by creating custom AI-powered teammates.
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    Starting Price: $19.99 per month
  • 2
    Datadog

    Datadog

    Datadog

    Datadog is the monitoring, security and analytics platform for developers, IT operations teams, security engineers and business users in the cloud age. Our SaaS platform integrates and automates infrastructure monitoring, application performance monitoring and log management to provide unified, real-time observability of our customers' entire technology stack. Datadog is used by organizations of all sizes and across a wide range of industries to enable digital transformation and cloud migration, drive collaboration among development, operations, security and business teams, accelerate time to market for applications, reduce time to problem resolution, secure applications and infrastructure, understand user behavior and track key business metrics.
    Leader badge
    Starting Price: $15.00/host/month
  • 3
    IFTTT

    IFTTT

    IFTTT

    Make connectivity your competitive edge. IFTTT is the leading connectivity platform powering the digital transformation of products into integrated services. One connection enables you to integrate with any service in our ecosystem with the tap of a button and at a fraction of the cost. One connection, countless possibilities. Increase the touchpoints your customers have with your business. Our Platform empowers you to build personal and innovative experiences that fit conveniently into your customers’ daily lives. Get unprecedented insights into who your customers are, how they use your service, and what they connect to so you can shape your business to their behaviors. Give your customers complete control of how their apps and devices access your service. Build trust by working with IFTTT.
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    Diffbot

    Diffbot

    Diffbot

    Diffbot provides a suite of products to turn unstructured data from across the web into structured, contextual databases. Our products are built off of cutting-edge machine vision and natural language processing software that's able to parse billions of web pages every day. Our Knowledge Graph product is the world's largest contextual database comprised of over 10 billion entities including organizations, people, products, articles, and more. Knowledge Graph's innovative scraping and fact parsing technologies link up entities into contextual databases, incorporating over 1 trillion "facts" from across the web in nearly live time. Our Enhance product provides information about organizations and people you already hold some information on. Enhance let's users build robust data profiles about opportunities they already hold some data on. Our Extraction APIs can be pointed to a page you want data extracted from. This can be product, people, article, organization page, or more.
    Starting Price: $299.00/month
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    Axway Amplify
    To become the hero, not the roadblock, many IT departments are investing in integration platforms that let users accomplish projects themselves, instead of waiting for an IT specialist. Whether it’s cutting the budget, struggling to get to the cloud, or tackling a growing project backlog, IT is challenged like never before. To become the hero, not the roadblock, many IT organizations are investing in platforms that let users accomplish projects themselves, instead of waiting for an IT specialist. Axway Amplify Platform is the enterprise integration platform that that can hide integration complexity, enforce IT policy, and scale at will, enabling your teams to: Stop repetitive one-off integrations, and focus on reusable integrations that can be leveraged by wider internal and external teams. Gain cloud cost savings and increase scale by moving on-premises integration silos to the cloud, or by leveraging them in place with hybrid deployment, and much more.
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    AllThingsDev

    AllThingsDev

    AllThingsDev

    AllThingsDev is a comprehensive API marketplace designed to streamline the discovery, subscription, and integration of APIs across various domains. It offers an extensive catalog encompassing categories such as artificial intelligence & machine learning, business & productivity, finance & payments, cloud & infrastructure, health & fitness, and communication & social. Developers can explore APIs for tasks like image recognition, text analytics, predictive modeling, project management, data analytics, secure payment processing, and social media integrations. Each API listing provides detailed documentation, usage examples, and integration guidelines, facilitating seamless adoption. AllThingsDev's user-friendly interface allows for efficient search and filtering, enabling users to find APIs that match their specific project requirements. Upon subscribing to an API, users receive immediate access credentials and sample code to expedite integration.
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