A curated index of services, tooling, and open source solutions for API testing, mocking, load testing, contract testing, and quality assurance. This collection covers functional testing frameworks, API clients, contract testing tools, load and performance testing platforms, mocking and service virtualization, monitoring, and security testing scanners.
URL:https://raw.githubusercontent.com/api-evangelist/testing/refs/heads/main/apis.yml
- API Quality
- Contract Testing
- Load Testing
- Testing
- Created: 2026-03-25
- Modified: 2026-05-03
This index links to 30 API testing tools and platforms:
| Tool | Description |
|---|---|
| Artillery | Modern load testing and functional testing platform |
| Assertible | API monitoring and testing automation |
| Bruno | Open-source API client with git-friendly collections |
| Checkly | Monitoring as code for APIs and web apps |
| Dredd | API spec-driven contract testing CLI |
| Gatling | High-performance load testing framework |
| Hoppscotch | Open-source API client and testing environment |
| Hoverfly | API service virtualization and simulation |
| HTTPie | CLI HTTP client for API interaction and testing |
| Insomnia | API design and testing client |
| JMeter | Apache load and performance testing tool |
| k6 | JavaScript-based load and performance testing |
| Karate | BDD API test automation framework |
| Locust | Python-based distributed load testing |
| Microcks | API mocking and contract testing via specs |
| Mockoon | API mocking server with GUI |
| Newman | Postman collection CLI runner |
| Nuclei | Security vulnerability scanning for APIs |
| Optic | API spec validation and contract drift detection |
| OWASP ZAP | Security scanner for web APIs |
| Pact | Consumer-driven contract testing |
| Portman | OpenAPI-to-Postman collection generator |
| Postman | Full-featured API testing and collaboration platform |
| Prism | OpenAPI mock and validation server |
| REST Assured | Java DSL for REST API testing |
| Schemathesis | Property-based testing from OpenAPI/GraphQL schemas |
| Step CI | API workflow testing and quality gates |
| SuperTest | Node.js HTTP assertion library |
| Vegeta | HTTP load testing CLI and library |
| WireMock | API mocking and service virtualization |
| Type | URL |
|---|---|
| JSON Schema | testing-tool-schema.json |
| JSON Structure | testing-tool-structure.json |
| JSON-LD Context | testing-context.jsonld |
| Vocabulary | testing-vocabulary.yml |
| Name | Description |
|---|---|
| Postman Tool Example | Example catalog entry for the Postman API testing platform. |
- Kin Lane (kin@apievangelist.com)