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SOAP API Tester

Build and test SOAP API envelopes with WSDL URL, method name, and XML parameters. Generate complete SOAP request envelopes. Code never leaves your device — formatting and validation run locally in your browser.

100% Local Browser Native

How to Use the SOAP API Tester

1. Paste WSDL or endpoint

Add the service URL plus SOAP action and envelope body.

2. Send and read XML

Inspect the SOAP response and fault codes for failures.

3. Save the call

Keep the working envelope for repeat tests.

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Frequently Asked Questions

What do I need?

The WSDL endpoint plus operation name — envelopes build from there.

Auth headers?

Basic, WS-Security, and custom headers all attachable before sending.

Why still SOAP?

Enterprise and banking systems run on it — testing stays relevant.

Is my request data uploaded anywhere?

No — requests assemble locally in your browser, free with no signup.

What does Send actually transmit?

A POST of the built envelope as text/xml with a SOAPAction header set to your method name; the namespace defaults to the endpoint origin plus /service. It aborts after 25 seconds and shows the first 8,000 response characters.

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Last updated October 2026