API and performance testing

Composal vs SoapUI

SoapUI is focused on API and service behavior, including protocols that browser-centric QA does not exercise directly. Composal tests a running web experience and reports outcomes from Scenarios or exploratory Deep Scan.

See where each fits ↓

Two workflows, side by side

Composal

Composal sends AI browser agents to use your running web app and check the outcomes you care about. Define journeys as plain-English Scenarios, map existing flows with Discovery, or explore for bugs with Deep Scan. Runs keep recordings and reproduction steps so your team or coding agent can investigate a Finding.

Verify documentation →

SoapUI

Open-source SOAP and REST service testing

SoapUI Open Source is a graphical tool for building functional tests of SOAP and REST services.

What each tool does

“With setup” means you supply code or configuration. “Not confirmed” means support for this workflow needs checking with the vendor.

Composal and SoapUI workflow capabilities
Workflow	Composal	SoapUI
Run browser journeys	Yes Run saved browser Scenarios and return recordings and reproducible Findings.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Map application workflows	Yes Discovery maps key application areas and user journeys.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Explore for unexpected issues	Yes Deep Scan explores the running application and reports reproducible issues.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Describe checks in plain English	Yes Author Scenarios around the intended user outcome, then review the steps and expected results.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Run or inspect from a terminal	Yes Use the CLI to start and inspect verification runs and their Findings.	With setup Connect its specialist checks to your development workflow using supported integrations.
API and protocol testing	No Use a dedicated tool for this specialist workflow alongside Composal’s browser verification.	Yes SoapUI Open Source is a graphical tool for building functional tests of SOAP and REST services.

Where each fits

Choose SoapUI when a team needs accessible SOAP or REST functional tests and can own the test project and its execution.

Try this evaluation

Choose one SOAP or REST operation that supports a browser task. Create a SoapUI test for its request, response, and an error case.

Coverage: Which user outcomes must this release prove, and which specialist checks must stay in your existing stack?
Setup: Who prepares accounts, test data, permissions and access to the deployment being tested?
Evidence: Can the engineer reproduce a reported failure from the recording and steps, without asking the tester to investigate again?
Ownership: Who updates the checks when the product changes, and can the team review what a passing result actually proves?