# Top Free API Marketplaces - Page 2 ## How Many API Marketplaces Products Does G2 Track? **Total Products under this Category:** 60 ### Category Stats (Aug 2026) - **Average Rating:** 4.48/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Apify (+0.19%) - Among all products in this category, Apify recorded the largest rating increase compared to last month _Last updated: August 07, 2026_ ## How Does G2 Rank API Marketplaces Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 7,200+ Authentic Reviews - 60+ 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 API Marketplaces ![G2 Grid® for API Marketplaces plotting products by satisfaction and market presence](https://www.g2.com/categories/api-marketplace/grids.png?focus%5B%5D=2629&focus%5B%5D=74085&focus%5B%5D=23331&focus%5B%5D=4208&focus%5B%5D=40567&focus%5B%5D=23838&focus%5B%5D=3824&focus%5B%5D=24775) Highlighted products: Zapier, Apify, Celigo, MuleSoft Anypoint Platform, Google Cloud APIs, Azure App Service, Datadog, and Amplify Platform. Underlying data: [Grid® JSON](https://www.g2.com/categories/api-marketplace/grids.json?focus%5B%5D=zapier&focus%5B%5D=apify&focus%5B%5D=celigo&focus%5B%5D=mulesoft-anypoint-platform&focus%5B%5D=google-cloud-apis&focus%5B%5D=azure-app-service&focus%5B%5D=datadog&focus%5B%5D=amplify-platform) **Sponsored** ### Datadog Datadog is the monitoring, security and analytics platform for developers, IT operations teams, security engineers and business users in the cloud age. The 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. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=889&secure%5Bchosen_at%5D=2026-08-13T09%3A48%3A18Z&secure%5Bdisplayable_resource_id%5D=889&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=889&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=3824&secure%5Bresource_id%5D=889&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fapi-marketplace%2Ffree%3Fcategory_id%3Dapi-marketplace%26locale%3Dde%26page%3D2&secure%5Btoken%5D=7d2094649b28f9680579eb96390513dd71cfa59ad65eba6fd7d502cb0647ff35&secure%5Burl%5D=https%3A%2F%2Fwww.datadoghq.com%2Fdg%2Fmonitor%2Fdemo-request%2F%3Futm_source%3Dg2crowd%26utm_medium%3Dreview-site%26utm_campaign%3Ddg-coreplatform-multi-ww-en-coreplatform&secure%5Burl_type%5D=custom_url) ### [DualEntry](https://www.g2.com/products/dualentry/reviews) DualEntry is the AI-native ERP that helps finance teams achieve more in less time. With powerful automations, it takes manual work out of everything from everyday accounting, AR/AP, and revenue management to tax handling, financial reporting, and audit prep. DualEntry is built for global, multi-entity, multi-currency operations. It’s designed to scale with business from mid-market to IPO and beyond, adapting to a company’s specific needs – no matter how complex. 𝗕𝘂𝗶𝗹𝘁 𝗯𝘆 𝗮𝗰𝗰𝗼𝘂𝗻𝘁𝗮𝗻𝘁𝘀, 𝗳𝗼𝗿 𝗮𝗰𝗰𝗼𝘂𝗻𝘁𝗮𝗻𝘁𝘀, 𝗗𝘂𝗮𝗹𝗘𝗻𝘁𝗿𝘆 𝗼𝗳𝗳𝗲𝗿𝘀: • Multi-entity consolidation across global subsidiaries • Multi-currency support, covering 180 local currencies in 240 countries, with live FX rates • Automated intercompany eliminations and journal-entry posting • Custom workflows and granular access controls • Role-based, real-time dashboards • Audit-ready financials with SOX, SOC 2, and GDPR compliance • A flexible, complete GL that you can tailor to you with unlimited nestable classifications and custom feeds • Real-time insights and drillable, multi-dimensional reporting across entities • 13,000+ bank connections covering 60+ countries • 200+ free, seamless integrations across CRM, AP, AR, and more Automate your workflows end-to-end with DualEntry, and grow your business without adding to your headcount. Schedule a personalized demo now. **Average Rating:** 4.9/5.0 **Total Reviews:** 123 #### How Do G2 Users Rate DualEntry? - **Has the product been a good partner in doing business?:** 9.5/10 (Category avg: 8.4/10) - **Ease of Admin:** 9.5/10 (Category avg: 8.4/10) - **Ease of Use:** 9.3/10 (Category avg: 8.6/10) - **Quality of Support:** 9.4/10 (Category avg: 8.5/10) #### Who Is the Company Behind DualEntry? - **Seller:** [DualEntry](https://www.g2.com/sellers/dualentry) - **Company Website:** www.dualentry.com - **Year Founded:** 2024 - **HQ Location:** New York, US - **Twitter:** @dualentry 765 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=84ffd98b38934e2a6ac5db385eecd8a3aeef689525e4fa00a282e1b8dd54e533&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fdualentry%2F&secure%5Burl_type%5D=linkedin_company_website) 71 employees on LinkedIn® #### Who Uses This Product? - **Who Uses This:** Accountant - **Top Industries:** Accounting, Manufacturing - **Company Size:** 49% Medium, 34% Small #### What Do G2 Reviewers Say About DualEntry? _AI-generated summary from verified user reviews_ ##### Pros - Users value the **ease of use** of DualEntry, benefiting from automated workflows and powerful integrations for efficient tracking. - Users value the **smooth handling of thousands of transactions** , ensuring performance even during high-volume processing. - Users highlight the **efficiency** of DualEntry in handling high-volume transactions smoothly and reliably. - Users value the **powerful integrations** of DualEntry, enhancing accuracy and efficiency in financial tracking. - Users appreciate the **time-saving automation** of DualEntry, allowing teams to focus on strategic decision-making. ##### Cons - Users find that **improvement is needed** in onboarding guidance and customization options for a better experience. - Users note the **missing mobile app** and lack of onboarding tools, making the initial experience challenging. - Users express frustration with **limited customization** options in DualEntry, impacting their ability to personalize the experience. - Users find the interface **not user-friendly** , as it lacks guidance and onboarding tools for newcomers. - Users find the **learning difficulty** with DualEntry challenging due to insufficient guidance for new users. #### What Are Recent G2 Reviews of DualEntry? **["DualEntry Makes Data Entry Smoother and More Efficient"](https://www.g2.com/survey_responses/dualentry-review-11897989)** **Rating:** 5.0/5.0 stars _— Verified User in Construction_ [Read full review](https://www.g2.com/survey_responses/dualentry-review-11897989) **["Streamlined Bookkeeping with Compliance Caveats"](https://www.g2.com/survey_responses/dualentry-review-13217733)** **Rating:** 4.0/5.0 stars _— Adriana J._ [Read full review](https://www.g2.com/survey_responses/dualentry-review-13217733) ### [Diffbot](https://www.g2.com/products/diffbot/reviews) Diffbot provides a suite of products built to turn unstructured data from across the web into structured, contextual databases. Diffbot's products are built off of cutting-edge machine vision and natural language processing software that's able to read billions of documents every day. Diffbot Knowledge Graph Diffbot's Knowledge Graph product is the world's largest contextual database comprised of over 10 billion entities including organizations, products, articles, events, and more. Knowledge Graph's innovative NLP and fact parsing technologies link up entities into contextual databases, incorporating over 1 trillion "facts" from across the web in nearly live time. **Average Rating:** 4.9/5.0 **Total Reviews:** 28 #### How Do G2 Users Rate Diffbot? - **Has the product been a good partner in doing business?:** 9.6/10 (Category avg: 8.4/10) - **Ease of Admin:** 7.9/10 (Category avg: 8.4/10) - **Ease of Use:** 8.8/10 (Category avg: 8.6/10) - **Quality of Support:** 9.8/10 (Category avg: 8.5/10) #### Who Is the Company Behind Diffbot? - **Seller:** [Diffbot](https://www.g2.com/sellers/diffbot-ae6a3f32-a5c5-4c18-a41c-f9c78b64d2e8) - **Year Founded:** 2011 - **HQ Location:** Menlo Park, California - **Twitter:** @diffbot 8,059 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=29c9dfd74f1ce2636e88a07f133ee0d0400dc3cac6e8517be8b5ffccee3bf528&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fdiffbot%2F&secure%5Burl_type%5D=linkedin_company_website) 30 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Computer Software, Information Technology and Services - **Company Size:** 76% Small, 17% Medium #### What Are Recent G2 Reviews of Diffbot? **["Diffbot is a game-changer."](https://www.g2.com/survey_responses/diffbot-review-7472518)** **Rating:** 5.0/5.0 stars _— Kurt L._ [Read full review](https://www.g2.com/survey_responses/diffbot-review-7472518) **["The most Competant Web Crawling Service I've used"](https://www.g2.com/survey_responses/diffbot-review-7657745)** **Rating:** 4.0/5.0 stars _— Justin W._ [Read full review](https://www.g2.com/survey_responses/diffbot-review-7657745) #### What Are G2 Users Discussing About Diffbot? - [What does Diffbot do?](https://www.g2.com/discussions/what-does-diffbot-do) - 1 comment - [Is Web scraping AI?](https://www.g2.com/discussions/is-web-scraping-ai) - [Who uses diffbot?](https://www.g2.com/discussions/who-uses-diffbot) - [How does Diffbot work?](https://www.g2.com/discussions/how-does-diffbot-work) ### [Blobr](https://www.g2.com/products/blobr/reviews) Blobr is the developer portal that converts more and boosts sales With Blobr: - distribute APIs on your terms, by deciding access conditions and monetization models; - provide a memorable experience by granting access to a lean interface with docs, code snippets and more, - understand your user behaviour thanks to detailed analytics and take action rapidly. **Average Rating:** 5.0/5.0 **Total Reviews:** 2 #### How Do G2 Users Rate Blobr? - **Ease of Use:** 10.0/10 (Category avg: 8.6/10) - **Quality of Support:** 10.0/10 (Category avg: 8.5/10) #### Who Is the Company Behind Blobr? - **Seller:** [Blobr](https://www.g2.com/sellers/blobr) - **Year Founded:** 2020 - **HQ Location:** Paris, FR - **Twitter:** @Blobr\_io 386 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=d9e8e6d7fe8674a25f0ec2d4f6158dd86540826e91688bde2318374cc3e92431&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fblobr&secure%5Burl_type%5D=linkedin_company_website) 16 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Small #### What Are Recent G2 Reviews of Blobr? **["Transformative"](https://www.g2.com/survey_responses/blobr-review-7964639)** **Rating:** 5.0/5.0 stars _— Qayyum R._ [Read full review](https://www.g2.com/survey_responses/blobr-review-7964639) **["Easy-to-Use API Sharing Solution"](https://www.g2.com/survey_responses/blobr-review-7962083)** **Rating:** 5.0/5.0 stars _— Emil W._ [Read full review](https://www.g2.com/survey_responses/blobr-review-7962083) ### [Swell](https://www.g2.com/products/swell-2019-12-28/reviews) Swell is the most powerful headless ecommerce platform for enterprises, agencies and startups. Powerful performance combined with unlimited design possibilities, a sleek dashboard and a modern developer workflow make Swell a perfect choice for the modern online business. Modern online storefronts can be created with any web, mobile or VR/AR technology. Build D2C, B2B, marketplaces, subscriptions, pre-orders, enterprise or any custom online experiences without having to code from scratch. A truly API-first approach and headless architecture enables small to medium businesses and middle-market enterprises alike to sell creatively and grow rapidly through a robust and customizable solution. **Average Rating:** 4.2/5.0 **Total Reviews:** 8 #### How Do G2 Users Rate Swell? - **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 8.4/10) - **Ease of Admin:** 10.0/10 (Category avg: 8.4/10) - **Ease of Use:** 10.0/10 (Category avg: 8.6/10) - **Quality of Support:** 10.0/10 (Category avg: 8.5/10) #### Who Is the Company Behind Swell? - **Seller:** [Swell](https://www.g2.com/sellers/swell) - **HQ Location:** Denver, US - **Twitter:** @swelldotcom 8,759 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=74e562d5e25eed8db5ac544a5c0aa3884d95efa545b7aa75daff2fb0b19f8e01&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fswellcommerce%2F&secure%5Burl_type%5D=linkedin_company_website) 23 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 63% Small, 38% Medium #### What Do G2 Reviewers Say About Swell? _AI-generated summary from verified user reviews_ ##### Pros - Users appreciate the **ease of use** of Swell, making audio recordings and customer engagement effortless and efficient. - Users value the **clear and actionable analytics** provided by Swell, enhancing customer engagement and efficiency. - Users value the **clear, actionable analytics tracking** of Swell, enhancing customer engagement and system integration. - Users value the **customizability** of Swell, enabling them to create unique and brand-oriented online shops. - Users value the **customization options** of Swell, allowing for unique and brand-aligned e-commerce experiences. ##### Cons - Users find **confusion in dialect understanding** and rigidity in managing their product base on Swell, especially newcomers. - Users find the **learning curve steep** , especially when managing large product bases and editing details can be tiring. - Users find the **limited customization** in Swell's reporting and content management can make managing products tedious. - Users face occasional **connectivity issues** , such as delays in notifications and syncing, which can be inconvenient. - Users find the **difficult modifications** of Swell frustrating, impacting the overall ease of use and value. #### What Are Recent G2 Reviews of Swell? **["Recommended swell"](https://www.g2.com/survey_responses/swell-review-11378855)** **Rating:** 5.0/5.0 stars _— Nand K._ [Read full review](https://www.g2.com/survey_responses/swell-review-11378855) **["Essential for Hong Kong Businesses, Needs Better Local Integration"](https://www.g2.com/survey_responses/swell-review-12450326)** **Rating:** 4.0/5.0 stars _— Townsand B._ [Read full review](https://www.g2.com/survey_responses/swell-review-12450326) ### [API Marketplace](https://www.g2.com/products/api-marketplace/reviews) DigitalAPI Marketplace gives your teams and partners a single place to explore, test, onboard, and adopt APIs with speed and consistency. Once you catalog all your internal APIs into our unified developer portal, select the APIs you want to monetise, and you can expose them to external partners and customers with our external branded marketplace. **Average Rating:** 5.0/5.0 **Total Reviews:** 1 #### How Do G2 Users Rate API Marketplace? - **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 8.4/10) - **Ease of Admin:** 10.0/10 (Category avg: 8.4/10) - **Ease of Use:** 8.3/10 (Category avg: 8.6/10) - **Quality of Support:** 8.3/10 (Category avg: 8.5/10) #### Who Is the Company Behind API Marketplace? - **Seller:** [DigitalAPI](https://www.g2.com/sellers/digitalapi-cf3a0879-cc5c-4ff2-9511-b8075e6709b1) - **Year Founded:** 2017 - **HQ Location:** Austin, Texas, United States - **LinkedIn® Page:** [in.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=a19d6e6a9c406876ca30f8cef197e431235f716cd219e0f76b6c0eb0e55d63fa&secure%5Burl%5D=https%3A%2F%2Fin.linkedin.com%2Fcompany%2Fdigitalapicraft&secure%5Burl_type%5D=linkedin_company_website) 123 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Large #### What Do G2 Reviewers Say About API Marketplace? _AI-generated summary from verified user reviews_ ##### Pros - Users appreciate the **in-depth usage analytics** provided by the API Marketplace, enhancing their decision-making and strategy. - Users find the **ease of API discovery and adoption** in the API Marketplace highly beneficial for their needs. - Users value the **ease of API discovery and adoption** thanks to the user-friendly interface of API Marketplace. - Users appreciate the **easy discovery and adoption of APIs** , enhancing their overall experience with API Marketplace. - Users value the **easy collaboration** for discovering and adopting APIs, enhancing both customization and analytics. ##### Cons - Users suggest the **limited features** of the API Marketplace could be improved with additional capabilities in the basic portal. - Users feel the need for **more features** on the basic portal to enhance their overall experience. #### What Are Recent G2 Reviews of API Marketplace? **["Best platform to monetize your APIs for external partners"](https://www.g2.com/survey_responses/api-marketplace-review-11668365)** **Rating:** 5.0/5.0 stars _— Verified User in Automotive_ [Read full review](https://www.g2.com/survey_responses/api-marketplace-review-11668365) ### [APIVerve](https://www.g2.com/products/apiverve/reviews) One API Key, countless APIs. Unlock limitless possibilities **Average Rating:** 5.0/5.0 **Total Reviews:** 1 #### How Do G2 Users Rate APIVerve? - **Ease of Use:** 10.0/10 (Category avg: 8.6/10) - **Quality of Support:** 8.3/10 (Category avg: 8.5/10) #### Who Is the Company Behind APIVerve? - **Seller:** [APIVerve](https://www.g2.com/sellers/apiverve) - **Year Founded:** 2023 - **HQ Location:** Lees Summit, US - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=813ed1d5c8a9e8ee28bf846133d546312bd8589eb10beaa43b3f6cca311c4b31&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fapiverve&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Small #### What Are Recent G2 Reviews of APIVerve? **["A must have collection for APIs."](https://www.g2.com/survey_responses/apiverve-review-9880777)** **Rating:** 5.0/5.0 stars _— RUTUJ D._ [Read full review](https://www.g2.com/survey_responses/apiverve-review-9880777) - [‹ Prev‹ Prev](/de/categories/api-marketplace/free?category_id=api-marketplace&order=g2_score#product-list) - [1](/de/categories/api-marketplace/free?category_id=api-marketplace&order=g2_score#product-list) - 2 - Next ›Next › Spotlight Categories [Employee Intranet Software](https://www.g2.com/categories/employee-intranet) [Relational Databases](https://www.g2.com/categories/relational-databases) [Marketing Automation Software](https://www.g2.com/categories/marketing-automation) [Talent Assessment Software](https://www.g2.com/categories/talent-assessment-software) [Live Chat Software](https://www.g2.com/categories/live-chat) Similar Categories - [Cloud Platform as a Service (PaaS)](/categories/cloud-platform-as-a-service-paas) - [Integrated Development Environments (IDE)](/categories/integrated-development-environments-ide) - [Software Testing](/categories/software-testing) - [Communication Platform as a Service (CPaaS)](/categories/communication-platform-as-a-service-cpaas) - [Help Authoring Tool (HAT)](/categories/help-authoring-tool-hat) - [Other Development](/categories/other-development) - [AI Documentation Generators](/categories/ai-documentation-generators) - [API Development](/categories/api-development) - [API Documentation Management](/categories/api-documentation-management) - [API Generation](/categories/api-generation) - [API Management](/categories/api-management) - [API Mocking](/categories/api-mocking) - [API Platforms](/categories/api-platforms) - [Application Development](/categories/application-development) - [Backend as a Service (BaaS)](/categories/backend-as-a-service-baas) [Browse API Marketplace Themes](/categories/api-marketplace/themes)