Best API Platforms for Small Business

How Many API Platforms Products Does G2 Track?

Total Products under this Category: 59

Category Stats (Oct 2026)

  • Average Rating: 4.49/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Gravitee.io (+0.04%) - Among all products in this category, Gravitee.io recorded the largest rating increase compared to last month

Last updated: October 08, 2026

How Does G2 Rank API Platforms Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 5,600+ Authentic Reviews
  • 59+ 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 Platforms

G2 Grid® for API Platforms plotting products by satisfaction and market presence

Highlighted products: Postman, MuleSoft Anypoint Platform, Kong Konnect, Apidog, WSO2 API Platform, and Stoplight.

Underlying data: [Grid® JSON](https://www.g2.com/categories/api-platforms/grids.json?focus%5B%5D=postman&focus%5B%5D=mulesoft-anypoint-platform&focus%5B%5D=kong-inc-kong-konnect&focus%5B%5D=apidog&focus%5B%5D=wso2-api-platform&focus%5B%5D=stoplight&segment=small-business)

Postman

Postman is the world’s leading API platform, used by more than 40 million developers and 500,000 organizations to build, test, and manage APIs at scale. With Postman, teams collaborate efficiently across the entire API lifecycle, including design, development, testing, security, documentation, and governance. The platform helps ensure consistency, quality, and enterprise-grade control. Postman also offers Agent Mode (beta), built on AWS Bedrock and trained with AWS SageMaker. Agent Mode enables developers to use natural language to debug requests, organize collections, document APIs, and automate workflows without switching tools or writing custom scripts.

Average Rating: 4.6/5.0

Total Reviews: 1,754

Who Is the Company Behind Postman?

  • Seller: Postman
  • Year Founded: 2014
  • HQ Location: San Francisco, CA
  • Twitter: @getpostman
    55,430 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    3,580 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, Software Developer
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 39% Medium, 35% Small

What Do G2 Reviewers Say About Postman?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Postman for testing APIs, enabling quick requests and seamless collaboration.
  • Users appreciate the ease of API testing with Postman, enabling quick requests, responses, and debugging without extra code.
  • Users value the ease of API testing with Postman, appreciating its intuitive interface and comprehensive features.
  • Users appreciate the ease of testing APIs with Postman, benefiting from its intuitive interface and collaboration features.
  • Users value the testing efficiency of Postman, enjoying quick debugging and seamless API management across environments.
Cons
  • Users often face slow performance with Postman, especially when dealing with large projects or validation processes.
  • Users often face performance issues with Postman, experiencing slowdowns and unexpected bugs that disrupt their workflow.
  • Users find Postman slow to load at times, especially with large collections and multiple tabs open, affecting performance.
  • Users experience resource limitations with Postman, as the app can slow down and consume significant memory during use.
  • Users find the limited features in Postman's free tier challenging, especially for smaller teams needing advanced tools.

What Are Recent G2 Reviews of Postman?

What Are G2 Users Discussing About Postman?

MuleSoft Anypoint Platform

MuleSoft Anypoint Platform is the industry-leading integration and governance solution designed to connect any application, API, and AI agent across hybrid and multi-cloud environments. For nearly two decades, we have served as the integration backbone for the world’s most complex enterprises. Today, we are extending to the AI era. We allow organizations to move beyond AI sprawl into a unified architecture where legacy systems, modern APIs, and autonomous agents interact securely on a single, trusted foundation. Key capabilities and components include: Hybrid integration and connectivity, utilizing a library of hundreds of pre-built connectors and support for new AI protocols like MCP and A2A to provide AI agents with the tools they need to access and act within legacy ERPs, CRMs, and on-premise databases. MuleSoft Agent Fabric: Unified API and agent governance, applying the same rigorous security policies, cost controls, and traffic enforcement to AI models and agents that organizations already trust for their global API ecosystems through a single, federated control plane. Fabric also includes agent visibility and registry, offering a single source of truth to discover and observe any cross-ecosystem agent, ensuring complete transparency and the elimination of shadow AI. MuleSoft Vibes: Natural language design and management, providing a revamped experience where teams can use native natural language prompts to scaffold integrations, manage lifecycles, and stay ahead of technical sprawl using the AI tools they already prefer. Trusted runtime and compliance, delivering a fully managed, hybrid, or on-prem foundation that has been proven at scale for years, ensuring that every interaction is backed by enterprise-grade monitoring and human-in-the-loop security. Overall, MuleSoft Anypoint Platform is the enterprise platform for organizations seeking to bring visibility, trust, and orchestration to their APIs and AI agents.

Average Rating: 4.4/5.0

Total Reviews: 762

Who Is the Company Behind MuleSoft Anypoint Platform?

  • Seller: Salesforce
  • Company Website:
  • Year Founded: 1999
  • HQ Location: San Francisco, CA
  • Twitter: @salesforce
    579,511 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    89,711 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, Senior Software Engineer
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 54% Large, 31% Medium

What Do G2 Reviewers Say About MuleSoft Anypoint Platform?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of MuleSoft Anypoint Platform, finding it ideal for their data loading needs.
  • Users value the integration capabilities of MuleSoft Anypoint Platform, enabling seamless connections across various systems and APIs.
  • Users value the ease of integration with MuleSoft Anypoint Platform, benefiting from its comprehensive API management features.
  • Users appreciate the clean UI and comprehensive features of MuleSoft Anypoint Platform for efficient API management.
  • Users value the easy integrations of MuleSoft Anypoint Platform, simplifying the connection of various systems seamlessly.
Cons
  • Users express concern over the high cost of MuleSoft Anypoint Platform, making it less accessible for smaller projects.
  • Users express concern over the high pricing issues of MuleSoft Anypoint Platform, making it less accessible for smaller organizations.
  • Users find the learning curve steep for MuleSoft Anypoint Platform, especially for those transitioning from other tools.
  • Users find learning difficulty with MuleSoft Anypoint Platform, requiring advanced skills and complicating transitions from familiar tools.
  • Users experience a steep learning curve with MuleSoft Anypoint, often requiring extensive training and adjustment time.

What Are Recent G2 Reviews of MuleSoft Anypoint Platform?

What Are G2 Users Discussing About MuleSoft Anypoint Platform?

Apidog

Apidog Inc. is a US development platform company founded in 2022. The company operates internationally, serving clients ranging from small teams to enterprise-level organizations with flexible pricing based on team size. Apidog offers an integrated platform that combines API design, debugging, testing, documentation, and mocking in a single interface. Key features include visual OpenAPI design tools, automated testing with CI/CD integration, professional documentation generation, smart mock servers, and multi-protocol support—all working seamlessly together with branch-based development capabilities. Apidog solves the challenge of fragmented API development by replacing multiple specialized tools with one cohesive platform, eliminating inefficient context switching between applications. By implementing a true API Design-first approach, the platform ensures a single source of truth throughout development, accelerating development cycles while improving collaboration, quality, and time-to-market for API deliveries.

Average Rating: 4.8/5.0

Total Reviews: 229

Who Is the Company Behind Apidog?

  • Seller: Apidog
  • Company Website:
  • Year Founded: 2023
  • HQ Location: Middletown, US
  • LinkedIn® Page: www.linkedin.com
    6 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, Senior Software Engineer
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 48% Small, 29% Medium

What Do G2 Reviewers Say About Apidog?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the user-friendly interface of Apidog, which simplifies API documentation and development processes effectively.
  • Users praise APIDOG for its seamless API management, enhancing efficiency in testing, debugging, and integration processes.
  • Users appreciate the multifunctionality of Apidog, effectively consolidating tools and enhancing collaboration in API development.
  • Users value the seamless API integration of Apidog, enhancing efficiency in connecting multiple applications effortlessly.
  • Users love the clear and objective user interface of Apidog, enhancing collaboration and documentation efficiency.
Cons
  • Users experience API limitations with Apidog, particularly a hard limit on execution time affecting long-running processes.
  • Users note that the learning curve can be challenging initially, but responsive support helps ease the process.
  • Users note a challenging learning curve with Apidog, particularly when transitioning from Postman, which can hinder initial usage.
  • Users find the poor UI of Apidog frustrating, as it complicates navigation and understanding of API interactions.
  • Users find the limited customization options for advanced features a drawback, affecting their API gateway experience.

What Are Recent G2 Reviews of Apidog?

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Kong Konnect

Kong is an AI and API connectivity platform designed to help platform engineering teams, DevOps organizations, and enterprise architects deploy, secure, observe, and govern API traffic across cloud, on-premises, and hybrid environments. Built on open-source foundations, Kong facilitates the management of the entire lifecycle of APIs and AI traffic at scale, encompassing everything from development and deployment to runtime policy enforcement and observability. Targeted primarily at mid-market and enterprise organizations with complex distributed architectures, Kong is particularly beneficial for those utilizing microservices, multi-cloud deployments, and AI-powered applications. The platform caters to a diverse audience, including platform engineers, API program managers, security architects, and development teams that require consistent and governed API access across both internal and external systems. By addressing the challenges of API sprawl, inconsistent security enforcement, and observability gaps, Kong provides a robust solution for organizations navigating the complexities of modern infrastructure. Kong's capabilities are extensive and designed to tackle several recurring infrastructure challenges. The platform's API Gateway and Lifecycle Management features enable efficient routing, load balancing, authentication, authorization, rate limiting, and transformation for various API types, including REST, GraphQL, gRPC, and event-based APIs. Additionally, with the rise of generative AI, Kong has developed an AI Gateway specifically for managing traffic to large language models (LLMs) and AI agents. This includes functionalities such as prompt and response management, semantic caching, and token-based rate limiting, ensuring that organizations can effectively govern their AI workloads. Another significant feature of Kong is its Service Mesh, which provides east-west traffic management between services within a cluster or across clusters. This includes support for mutual TLS (mTLS), traffic policies, and observability at the service level, enhancing security and monitoring capabilities. The Konnect SaaS Control Plane further streamlines the management of Kong deployments globally, offering centralized analytics, developer portal capabilities, and API catalog management. Kong's extensibility is another key differentiator, featuring a plugin architecture with over 100 pre-built integrations that cover a wide range of functionalities, including logging, authentication providers, observability backends, and AI providers. Available as open-source software, an enterprise distribution, or a fully managed SaaS offering, Kong integrates seamlessly with Kubernetes and supports deployment on major cloud platforms such as AWS, Azure, and GCP. This flexibility allows organizations to leverage Kong across heterogeneous environments without necessitating a complete infrastructure overhaul.

Average Rating: 4.4/5.0

Total Reviews: 354

Who Is the Company Behind Kong Konnect?

  • Seller: Kong Inc
  • Company Website:
  • Year Founded: 2017
  • HQ Location: San Francisco, CA
  • LinkedIn® Page: www.linkedin.com
    1,044 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, Senior Software Engineer
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 41% Medium, 30% Small

What Do G2 Reviewers Say About Kong Konnect?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Kong Konnect, complemented by excellent documentation and simple configuration options.
  • Users commend the robust security measures of Kong Konnect, ensuring reliable protection and performance of APIs.
  • Users appreciate the centralized control plane of Kong Konnect, which enhances API management and reduces operational overhead.
  • Users appreciate the scalability of Kong Konnect, enabling efficient management of APIs in distributed environments.
  • Users appreciate the ease of integration and customization of Kong Konnect, benefiting from its modular plugin system.
Cons
  • Users find the limited documentation for plugins in Kong Konnect challenging, affecting their overall experience.
  • Users find that Kong Konnect has missing features, particularly in AI capabilities and limited plugin support.
  • Users express a need for better support and analytics in Kong Konnect, highlighting gaps in learning resources and integration.
  • Users express concern over the limited features of Kong Konnect, noting missing essential functionalities and advanced options.
  • Users find the expensive features of Kong Konnect limiting, especially with essential tools locked behind paywalls.

What Are Recent G2 Reviews of Kong Konnect?

What Are G2 Users Discussing About Kong Konnect?

WSO2 API Platform

WSO2 API Platform is an open source, unified control plane for managing APIs, AI, and event-driven traffic across cloud, hybrid, and on-prem environments. It enables organizations to design, secure, govern, and productize APIs while scaling agentic and LLM-based workloads with built-in governance and security controls. Teams use WSO2 to prepare APIs for AI agents with auto-generated MCP servers, centrally manage outbound LLM traffic, and gain full visibility into API and AI usage, performance, and cost. The platform supports bi-directional AI governance, covering both inbound agent-to-tool traffic via MCP and outbound app-to-LLM traffic from one control plane. Unlike traditional API management tools, WSO2 API Platform supports both human and agentic consumers from a single platform. It manages APIs across WSO2 and third-party gateways, including Kong, AWS, Azure, Envoy, and Apigee, with federated policy enforcement from a single control plane. Built-in monetization (powered by Moesif) lets teams meter, bill, and productize API calls and LLM token usage through connectors for Stripe, Zuora, Chargebee, and more. Key capabilities include: ➡️ Full lifecycle API management with MCP Gateway (auto-generates MCP servers from ➡️ OpenAPI specs) and LLM Gateway (routing, semantic caching, guardrails, PII masking, and token cost control). ➡️ Deep analytics for API and AI usage powered by Moesif. ➡️ Compliance support for HIPAA, PCI-DSS, FedRAMP, GDPR, DORA, SOX, ITAR, and EU AI Act, with integration for Azure Content Safety and AWS Bedrock Guardrails. ➡️ Flexible deployment: SaaS, Kubernetes, hybrid, and self-hosted. ➡️ 100% open source with zero vendor lock-in. WSO2 API Platform helps enterprises modernize their API programs, adopt AI responsibly, and turn APIs and AI services into secure, scalable digital products.

Average Rating: 4.5/5.0

Total Reviews: 135

Who Is the Company Behind WSO2 API Platform?

  • Seller: WSO2
  • Company Website:
  • Year Founded: 2005
  • HQ Location: Mountain View, CA
  • Twitter: @wso2
    12,751 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,290 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, Senior Software Engineer
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 35% Small, 32% Large

What Do G2 Reviewers Say About WSO2 API Platform?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the full API lifecycle management of WSO2 API Platform, ensuring seamless creation, deployment, and governance.
  • Users value the flexible deployment options and AI-driven features of WSO2 API Platform for efficient API management.
  • Users value the speed and efficiency of WSO2 API Platform, enhancing productivity in API management and development.
  • Users appreciate the flexible deployment options of WSO2 API Platform, catering perfectly to various infrastructure needs.
  • Users value the ease of use of WSO2 API Platform, enjoying smooth integration and intuitive management features.
Cons
  • Users find the difficult configuration of WSO2 API Platform frustrating, as it demands significant time and expertise.
  • Users find the complex upgrade process of WSO2 API Platform time-consuming and challenging, especially with multiple configurations.
  • Users find the difficult setup process frustrating, citing the complexity and steep learning curve as major obstacles.
  • Users experience API limitations with errors in the developer portal and lack of RAML support causing frustration.
  • Users encounter technical issues and time-consuming policy management on the WSO2 API Platform, impacting the developer experience.

What Are Recent G2 Reviews of WSO2 API Platform?

What Are G2 Users Discussing About WSO2 API Platform?

Stoplight

Let Stoplight be your platform for building high-quality APIs for any scale - with best-in-class editing, documentation, and governance featuring built-in mocking, linting, style guides, component libraries, and more. Coding APIs before designing them wastes time and money and creates unnecessary risk. Build successful API programs at any scale that drive business outcomes with a design-first approach. Stoplight is the only design-focused API solution. With integrated documentation and governance, the Stoplight platform enables consistency, reusability, and quality for an enjoyable developer experience. The platform enables successful API programs driven by digital transformation, platform development, and API-as-a-product - for new or established teams.

Average Rating: 4.4/5.0

Total Reviews: 332

Who Is the Company Behind Stoplight?

  • Seller: SmartBear
  • HQ Location: Somerville, MA
  • Twitter: @smartbear
    16,468 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    923 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, Senior Software Engineer
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 49% Small, 38% Medium

What Do G2 Reviewers Say About Stoplight?

AI-generated summary from verified user reviews

Cons
  • Users find the app crashes frustrating, highlighting the need for improvements in stability and usability.
  • Users find compatibility issues with Stoplight that hinder its usability and overall effectiveness in production workflows.
  • Users find that performance issues undermine the effectiveness of Stoplight, affecting its viability in production workflows.
  • Users find the poor customer support of Stoplight hampers its effectiveness and reliability in production workflows.

What Are Recent G2 Reviews of Stoplight?

What Are G2 Users Discussing About Stoplight?

Adam Crivello
AC
Researched and written by Adam Crivello
Updated