

API Test Base
API Test Base is a free, offline-first tool for testing APIs and their side effects — the records an API writes to a database, the messages it publishes to a queue, the downstream services it calls. Test cases are created with a no-code / low-code UI, and the same tests can be...
Features
Properties
- Lightweight
Features
- No registration required
- Ad-free
- Portable
- API Testing
- Database Testing
- HTTP Testing
- REST Client
- Software Testing Tool
API Test Base News & Activities
Recent activities
saurowankhade added API Test Base as alternative to Dragonfly – REST API Client for VS Code- dennyR added API Test Base as alternative to Routebase
- apitestbase updated API Test Base
headzoo added API Test Base as alternative to HarborClient
haksung59 added API Test Base as alternative to RequesterX
anesxvito added API Test Base as alternative to ApiArk- tigrister added API Test Base as alternative to Tigrister
basift-tools added API Test Base as alternative to Test API
varga-robert added API Test Base as alternative to Restretto- apitestbase updated API Test Base
API Test Base information
What is API Test Base?
API Test Base is a free, offline-first tool for testing APIs and their side effects — the records an API writes to a database, the messages it publishes to a queue, the downstream services it calls. Test cases are created with a no-code / low-code UI, and the same tests can be automated in a CI/CD pipeline.
It is suitable for Integration, ESB and Microservices testing, and is built around the Integration Unit Testing method: testing an API as a black box, in isolation — sending a request to trigger it, then verifying both its response and its side effects.
Currently supported API types: HTTP, SOAP, Relational databases (Oracle, SQL Server, PostgreSQL, H2, etc.), JMS (ActiveMQ, Solace), File, FTP(S), SFTP, AMQP, MQTT, IBM MQ, IBM App Connect Enterprise (ACE; formerly IIB).
Feature highlights
- Many protocols. Not just HTTP.
- No code. Low code.
- Offline first. All your data is stored on your local machine. No internet connection is required to use the tool.
- Standalone requests, and structured test cases.
- Built-in data-driven testing.
- HTTP stubs (mock servers).
- Pattern-based test case generation.
- Automated test setup inside the test case.
- Test automation in CI/CD pipelines.
- Support Docker.
- Support VCS (like Git) based team collaboration.



