# Best API Marketplaces - Page 3

  *By [Adam Crivello](https://research.g2.com/insights/author/adam-crivello)*

   API marketplaces aggregate APIs and provide a place for application developers to upload, distribute, and monetize their APIs while also providing a space for consumers to discover and implement APIs for their own products. APIs enable developers to build components of an application that easily interact and interface with other applications. Likewise, they allow consumers to easily incorporate components from outside applications into their own application. For example, someone creating a travel booking app could consume the Google Maps API and incorporate it into their application. API marketplaces provide a venue for developers and consumers alike to share APIs. API marketplaces can be useful for businesses from both the consumer and developer side. For consumers, marketplaces make it easier to find and incorporate APIs into their application. By doing this, they are able to create a more powerful and user-friendly application. API developers, also called providers, use API marketplaces as a tool to increase the accessibility and universality of their application. By putting their API on a marketplace more people will be able to access it, thereby creating more visibility for their application. In addition, developers can monetize their API by selling its usage on the marketplace rather than giving it away for free. API marketplaces are used by development teams no matter whether they are API consumers or providers. Consumers will use API marketplaces to find APIs to use in the development of their own apps. Providers will use API marketplaces to offer their service in more flexible ways than their current infrastructure allows. API marketplaces make integrations between applications more convenient and efficient. They are used in conjunction with application development software like [mobile development](https://www.g2.com/categories/mobile-development) and [rapid application development](https://www.g2.com/categories/rapid-application-developement-rad).

To qualify for inclusion in the API Marketplace category, a product must:

- Be an open marketplace that allows consumers and developers to use APIs for any application
- Provide monetization opportunities for developers
- Provide tracking and analytics to measure usage




  
## How Many API Marketplaces Products Does G2 Track?
**Total Products under this Category:** 58

### Category Stats (May 2026)
- **Average Rating**: 4.48/5
- **New Reviews This Quarter**: 47
- **Buyer Segments**: Small-Business 71% │ Mid-Market 21% │ Enterprise 8%
- **Top Trending Product**: ServiceNow Store (+0.002)
*Last updated: May 18, 2026*

  
## How Does G2 Rank API Marketplaces Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 6,900+ Authentic Reviews
- 58+ 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.

  
## Which API Marketplaces Is Best for Your Use Case?

- **Leader:** [Zapier](https://www.g2.com/products/zapier/reviews)
- **Highest Performer:** [Integrately](https://www.g2.com/products/integrately/reviews)
- **Easiest to Use:** [Celigo](https://www.g2.com/products/celigo/reviews)
- **Top Trending:** [Apify](https://www.g2.com/products/apify/reviews)
- **Best Free Software:** [Zapier](https://www.g2.com/products/zapier/reviews)

  
---

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---

  ## What Are the Top-Rated API Marketplaces Products in 2026?
### 1. [Macromeasures API](https://www.g2.com/products/macromeasures-api/reviews)
  Macromeasures is a machine learning framework that takes raw social data and turns it into profiles on who people are and what they're interested in.



**Who Is the Company Behind Macromeasures API?**

- **Seller:** [Macromeasures](https://www.g2.com/sellers/macromeasures)
- **Year Founded:** 2014
- **HQ Location:** N/A
- **Twitter:** @macromeasures (112 Twitter followers)
- **LinkedIn® Page:** http://www.linkedin.com/company/macromeasures (2 employees on LinkedIn®)



### 2. [Mashape](https://www.g2.com/products/mashape/reviews)
  Mashape is an API marketplace, powering thousands of APIs and applications.



**Who Is the Company Behind Mashape?**

- **Seller:** [Mashape](https://www.g2.com/sellers/mashape)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)



### 3. [NoCodeAPI](https://www.g2.com/products/nocodeapi/reviews)
  The easiest way to connect with APIs.



**Who Is the Company Behind NoCodeAPI?**

- **Seller:** [NoCodeAPI Pte. Ltd.](https://www.g2.com/sellers/nocodeapi-pte-ltd)
- **Year Founded:** 2019
- **HQ Location:** New York, US
- **LinkedIn® Page:** https://www.linkedin.com/company/nocodeapi/ (6 employees on LinkedIn®)



### 4. [Prompt Attack](https://www.g2.com/products/prompt-attack/reviews)
  Prompt Attack is your marketplace for buying and selling AI prompts, creating a hub for your AI interaction needs.



**Who Is the Company Behind Prompt Attack?**

- **Seller:** [Prompt Attack](https://www.g2.com/sellers/prompt-attack)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)



### 5. [SaaS Industries](https://www.g2.com/products/saas-industries/reviews)
  SaaS Industries, founded in 2019 and headquartered in Vienna, Austria, specializes in developing productivity-enhancing web APIs and cloud-based SaaS applications tailored for software developers. Their offerings include a range of off-the-shelf, cloud-based API products designed to automate tasks and verify data, thereby assisting clients in addressing daily business challenges. Key Features and Functionality: - Automated APIs: Provides a suite of APIs that streamline various business processes, reducing manual effort and increasing efficiency. - Data Verification Tools: Offers tools to ensure data accuracy and integrity, crucial for reliable business operations. - Cloud-Based Solutions: Delivers scalable and accessible services through cloud infrastructure, facilitating seamless integration and deployment. Primary Value and Problem Solved: SaaS Industries' products empower software developers by automating routine tasks and ensuring data accuracy, leading to enhanced productivity and operational efficiency. By providing reliable and scalable cloud-based APIs, they enable businesses to focus on core activities without the burden of managing complex backend processes.



**Who Is the Company Behind SaaS Industries?**

- **Seller:** [SaaS Industries](https://www.g2.com/sellers/saas-industries)
- **Year Founded:** 2015
- **HQ Location:** Vienna, Vienna, Austria
- **LinkedIn® Page:** https://www.linkedin.com/company/apilayer/ (16 employees on LinkedIn®)



### 6. [Skyoffer](https://www.g2.com/products/skyoffer/reviews)
  Get up to 30% discount offers on B2B products. Skyoffer is a platform that helps businesses find the best SaaS deals by connecting them directly with vendors. Instead of searching through countless options or negotiating individually, users submit a request and receive personalized offers from multiple SaaS providers. With Skyoffer, businesses can compare pricing, discounts, and unique vendor deals in one place, saving both time and money. Whether you're a startup looking for the best CRM or a company trying to optimize software expenses, Skyoffer makes the SaaS purchasing process simple and cost-effective.



**Who Is the Company Behind Skyoffer?**

- **Seller:** [Skyoffer](https://www.g2.com/sellers/skyoffer)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)



### 7. [Yappes](https://www.g2.com/products/yappes/reviews)
  Yappes is a next-gen, unified API Management Platform built to drive revenue growth, simplify integrations, and cut costs & time-to-market. Architected to support the entire API lifecycle, Yappes eliminates complexities in API security, governance, management, and monetisation. Key Features: ✅ Private API Marketplace - Secure distribution, monetisation, and automated billing ✅ API Gateway - Advanced security, mediation, and data transformation ✅ API Manager - Simplified design, documentation, and version control ✅ Monitoring & Enforcement - Real-time policy checks and enforcement ✅ Analytics - Actionable data-driven insights into API performance Yappes isn’t just an API management tool, it’s your competitive advantage!



**Who Is the Company Behind Yappes?**

- **Seller:** [Yappes](https://www.g2.com/sellers/yappes)
- **Year Founded:** 2016
- **HQ Location:** Mysuru., IN
- **Twitter:** @yappestech (48 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/yappes/ (17 employees on LinkedIn®)



### 8. [Zip Code API](https://www.g2.com/products/zip-code-api/reviews)
  The US Zip Code API, which encompasses multiple endpoints, supplies an enhanced JSON-formatted data model for United States zip code information. Employing REST design principles, this versatile API enables you to integrate essential functionalities like zip code validations, city searches, distance calculations, radius searches, and more into your applications.



**Who Is the Company Behind Zip Code API?**

- **Seller:** [Metadapi](https://www.g2.com/sellers/metadapi)
- **Year Founded:** 2022
- **HQ Location:** Fort Myers, US
- **LinkedIn® Page:** https://www.linkedin.com/company/metadapi/ (2 employees on LinkedIn®)




    ## What Is API Marketplaces?
  [Development Software](https://www.g2.com/categories/development)
  ## What Software Categories Are Similar to API Marketplaces?
    - [iPaaS Software](https://www.g2.com/categories/ipaas)