Best API Development Tools for Small Business - Page 2

How Many API Development Tools Products Does G2 Track?

Total Products under this Category: 71

Category Stats (Sep 2026)

  • Average Rating: 4.5/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Gravitee.io (+0.9%) - Among all products in this category, Gravitee.io recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank API Development Tools Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 7,300+ Authentic Reviews
  • 71+ 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 Development Tools

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

Highlighted products: Postman, Apidog, Apify, IBM API Connect, AWS AppSync, WSO2 API Platform, Kong Konnect, and Zuplo.

Underlying data: [Grid® JSON](https://www.g2.com/categories/api-development/grids.json?focus%5B%5D=postman&focus%5B%5D=apidog&focus%5B%5D=apify&focus%5B%5D=ibm-api-connect&focus%5B%5D=aws-appsync&focus%5B%5D=wso2-api-platform&focus%5B%5D=kong-inc-kong-konnect&focus%5B%5D=zuplo&segment=small-business)

Apiary

Collaborative design stack for APIs.

Average Rating: 4.3/5.0

Total Reviews: 22

How Do G2 Users Rate Apiary?

  • Visibility: 8.8/10 (Category avg: 8.6/10)
  • Access Control: 7.4/10 (Category avg: 8.5/10)
  • Ease of Use: 9.0/10 (Category avg: 8.8/10)
  • Orchestration: 6.7/10 (Category avg: 8.5/10)

Who Is the Company Behind Apiary?

  • Seller: Oracle
  • Year Founded: 1977
  • HQ Location: Austin, TX
  • Twitter: @Oracle
    827,997 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    207,576 employees on LinkedIn®
  • Ownership: NYSE:ORCL

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 65% Small, 22% Large

What Are Recent G2 Reviews of Apiary?

What Are G2 Users Discussing About Apiary?

Swagger Studio

Swagger is an API development platform that combines powerful open-source tools with advanced collaboration, governance, and integration features. It helps teams create, standardize, and scale APIs with consistent design standards, role-based collaboration, and effortless deployment to popular gateways and version control systems.

Average Rating: 4.5/5.0

Total Reviews: 185

How Do G2 Users Rate Swagger Studio?

  • Visibility: 8.7/10 (Category avg: 8.6/10)
  • Access Control: 8.5/10 (Category avg: 8.5/10)
  • Ease of Use: 8.7/10 (Category avg: 8.8/10)
  • Orchestration: 8.3/10 (Category avg: 8.5/10)

Who Is the Company Behind Swagger Studio?

  • Seller: SmartBear
  • Company Website:
  • HQ Location: Somerville, MA
  • Twitter: @smartbear
    16,468 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    944 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: 38% Small, 36% Large

What Do G2 Reviewers Say About Swagger Studio?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the seamless integration with DevOps tools in Swagger Studio, enhancing API development and testing workflows.
  • Users appreciate the structured documentation of Swagger Studio, which enhances collaboration and makes integrations easier.
  • Users appreciate the ease of use of Swagger Studio, making API documentation and testing straightforward and accessible.
  • Users enjoy the easy API integration that simplifies viewing contracts and understanding responses with collaborative tools.
  • Users appreciate the ease of API testing with Swagger Studio, simplifying development and integration processes.
Cons
  • Users find the UX improvements necessary as the interface is clunky and lacks essential features for ease of use.
  • Users express frustration with data management issues, noting lost requests and lack of tracking for team changes.
  • Users find the pricing to be expensive and hope for more affordable options or trial improvements.
  • Users find the limited collaboration options in Swagger Studio hinder teamwork and tracking of document changes.
  • Users find limited customization options in Swagger Studio, impacting functionality and team collaboration negatively.

What Are Recent G2 Reviews of Swagger Studio?

What Are G2 Users Discussing About Swagger Studio?

Beeceptor

Beeceptor is an AI-powered API and Service virtualization platform that helps you eliminate dependencies, accelerate testing, and deliver software faster. Instead of waiting for backend services, third-party APIs, partner systems, or test environments, your teams can instantly create realistic virtual services and continue independently. Designed for QA engineers, SDETs, developers, architects, platform teams, solution engineers, and enterprise organizations, Beeceptor combines AI-assisted service creation, real-time traffic inspection, and enterprise-grade governance into a single platform that is easy to adopt and delivers value within minutes. You can connect it to agentic frameworks like Claude, GPT, Copilot, etc. ## Build virtual services in a few seconds. Traditional service virtualization tools often require specialized skills, lengthy setup cycles, and dedicated teams. Beeceptor takes a different approach. You can generate virtual services from OpenAPI specifications, Swagger files, GraphQL schemas, SOAP/WSDL definitions, Postman collections, sample requests and responses, or recorded API traffic in under 60 seconds. The AI automatically generates endpoints, mock responses, realistic test data, request validation rules, and service behaviors, dramatically reducing setup effort. ## Eliminate dependencies and enable shift-left testing Most often software delivery delays are caused by unavailable services, unstable test environments, vendor sandboxes, API rate limits, or dependencies on other teams. These small issues build up, and cause the delivery date to be pushed. Beeceptor allows teams to virtualize external dependencies, build isolated test environments, so your team work independently. ## Common use cases include: * API and contract-first development * Shift-left testing and quality engineering * Frontend and mobile development before backend completion * Integration and end-to-end testing * Test suite integration, CI/CD automation, * Partner and vendor sandbox environments * Legacy system simulation * Microservices testing * Performance, chaos and resilience testing * Developer onboarding and training environments ## AI-powered service virtualization Beeceptor uses AI natively to accelerate the creation and maintenance of mock/virtual services. Here are the top features * Generate mock APIs from specifications and schemas. Upload Swagger, WSDL, GraphQL, gRPC, Postman, specs. * Create realistic test data automatically from the context, field names, description, etc * Use AI to fix human errors, in the context. * Build OpenAPI spec from the recorded production traffic. * Detect contract drifts in the implementation and get notified about it. ## Comprehensive protocol support Beeceptor supports modern API ecosystems and enterprise integration patterns, including: * REST APIs * OpenAPI and Swagger * GraphQL * SOAP and WSDL services * Webhooks * Web-socket * Server-Sent Events (SSE) * CRUD APIs - backed with a database. * Mutual TLS (mTLS) * HTTP-based enterprise integrations ## Dynamic and stateful service simulation Beyond simple static mocks, Beeceptor supports advanced service virtualization scenarios including the following. * Stateful workflows * Multi-step transactions * Session-aware interactions * Conditional responses * Dynamic payload generation * Request correlation * Delays and latency conditions * Network failures and error scenarios * Rate limiting and throttling behavior * Edge-case and negative-path testing ## Real-time visibility and traffic recording Beeceptor provides real-time visibility into API traffic as requests occur. This is best in the class, request response interception, so you can inspect requests, validate payloads, debug integrations, and identify issues without requiring access to upstream systems. ## Reduce infrastructure and API costs Their engineering rely on expensive third-party APIs, vendor sandboxes, or shared environments that incur usage costs and operational overhead. A lot of Beeceptor customers save cost. Beeceptor helps reduce: * Third-party API consumption costs * Usage-based API charges * Vendor sandbox limitations * Environment maintenance effort * Infrastructure provisioning requirements * Delays caused by shared testing resources ## Enterprise-ready by design Beeceptor is built for enterprise adoption and large-scale engineering organizations. Enterprise capabilities include: * Single Sign-On (SSO) * SAML integration * Role-based access control * Audit logs * Governance and approval workflows * IP allowlists and access controls * Sensitive data masking in HTTP headers and payload. * Private cloud deployment, On-premises deployment * Dedicated infrastructure options * Unlimited-scale enterprise usage ## Faster time-to-value The biggest advantage of Beeceptor is speed. You move from an API specification, sample payload, or recorded traffic to a fully functional virtual service in minutes. No specialized virtualization expertise is required. No infrastructure needs to be provisioned. No dependency teams need to be involved. The result is faster releases, better test coverage, reduced integration risk, lower operational costs, and a more dependency-free engineering culture.

Average Rating: 4.8/5.0

Total Reviews: 77

How Do G2 Users Rate Beeceptor?

  • Visibility: 8.5/10 (Category avg: 8.6/10)
  • Access Control: 8.2/10 (Category avg: 8.5/10)
  • Ease of Use: 9.7/10 (Category avg: 8.8/10)
  • Orchestration: 8.1/10 (Category avg: 8.5/10)

Who Is the Company Behind Beeceptor?

  • Seller: Beeceptor
  • Year Founded: 2017
  • HQ Location: Hyderabad, Telangana
  • Twitter: @beeceptor
    171 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    7 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Developer
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 51% Small, 26% Medium

What Do G2 Reviewers Say About Beeceptor?

AI-generated summary from verified user reviews

Pros
  • Users love the ease of use of Beeceptor, valuing its simple setup and intuitive interface for testing APIs.
  • Users value the speed of setup and quick response times, enhancing their development efficiency with Beeceptor.
  • Users appreciate the easy setup of Beeceptor, enabling quick API mocking and streamlined internal development.
  • Users value the ease of use of Beeceptor for mock API testing, facilitating quick and flexible API simulations.
  • Users appreciate the integrations with tools like Postman, enhancing development speed and simplifying API testing processes.
Cons
  • Users find missing features like limited query string handling and fewer import options frustrating in Beeceptor.
  • Users face request limitations with Beeceptor, hindering complex simulations and requiring upgrades for extensive testing.
  • Users find Beeceptor has limited features, making it inadequate for complex API simulations and heavy testing needs.
  • Users note that the UI/UX can be challenging, suggesting improvements for better navigation and organization of features.
  • Users report bug issues that hinder usability, though some bugs are promptly addressed by the developers.

What Are Recent G2 Reviews of Beeceptor?

What Are G2 Users Discussing About Beeceptor?

Backendless

Backendless is a visual app development platform that offers a full range of low-code and no-code tools for app and web developers of all experience levels. Backendless features include a component-based UI Builder, real-time database, user authentication and management suite, push notification and in-app messaging console, Codeless logic builder, API management, and much more. Backendless was designed from the backend first, making it a perfect backend compliment to any coded or no-code frontend. The Backendless platform's visual approach and pre-built APIs make it easy to build the backend of any app up to 10 times faster than with traditional coding solutions and at a fraction of the cost.

Average Rating: 4.4/5.0

Total Reviews: 56

How Do G2 Users Rate Backendless?

  • Visibility: 8.3/10 (Category avg: 8.6/10)
  • Access Control: 7.4/10 (Category avg: 8.5/10)
  • Ease of Use: 8.8/10 (Category avg: 8.8/10)
  • Orchestration: 7.9/10 (Category avg: 8.5/10)

Who Is the Company Behind Backendless?

  • Seller: Backendless
  • Year Founded: 2012
  • HQ Location: Frisco, TX
  • Twitter: @Backendless
    1,549 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    24 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Marketing and Advertising
  • Company Size: 98% Small, 2% Medium

What Are Recent G2 Reviews of Backendless?

What Are G2 Users Discussing About Backendless?

Conektto

Conektto is the Generative Platform for Enterprise API development at GPTSpeed. Powered by Natural Language Processing of OpenAPI specification, with Conektto generate production ready API code in several programming languages in minutes. Conektto is the only tool that you need to simplify your API development and eliminate the complexities.

Average Rating: 4.8/5.0

Total Reviews: 40

How Do G2 Users Rate Conektto?

  • Visibility: 9.1/10 (Category avg: 8.6/10)
  • Access Control: 9.3/10 (Category avg: 8.5/10)
  • Ease of Use: 9.2/10 (Category avg: 8.8/10)
  • Orchestration: 9.5/10 (Category avg: 8.5/10)

Who Is the Company Behind Conektto?

  • Seller: Conektto
  • Year Founded: 2022
  • HQ Location: Pleasanton, California
  • Twitter: @conektto
    16 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 73% Small, 15% Medium

What Are Recent G2 Reviews of Conektto?