Still Working With SOAP? Here's How to Mock It From a WSDL File in Seconds

SOAP APIs aren't glamorous, but they're everywhere in healthcare, finance, and government. If your team integrates with a SOAP service, testing is usually painful: fire up a heavy local server, parse complex WSDL files manually, or hardcode XML fixtures.

moqapi.dev removes all of that. Import a WSDL, get working SOAP endpoints instantly.

Why SOAP Mocking Is Hard

SOAP comes with baggage:

• Complex schemas — WSDL files define types, messages, port types, bindings, and services. They reference XSD schemas that can be deeply nested.
• XML namespacing — every element needs the right namespace prefix or the parser rejects it.
• Envelope structure — requests and responses must be wrapped in SOAP Envelope and Body elements.
• Limited tooling — most modern mock tools only support REST/JSON. SOAP developers are left with SoapUI or hand-crafted XML.

How moqapi.dev Solves It

1. Import your WSDL — paste the URL or upload the file. The parser extracts every operation, type definition, and message structure.
2. Operations become endpoints — each WSDL operation gets its own callable endpoint. The SOAPAction header is matched automatically.
3. XML responses are generated — response bodies follow the schema from the WSDL. Complex types, arrays, enums, and nested elements are all resolved.

Example: A Payment Service WSDL

Imagine you're integrating with a payment processor that exposes a SOAP API with operations like:

• ProcessPayment
• GetTransactionStatus
• RefundPayment

Import the WSDL and each operation is immediately callable. Send a SOAP request:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
  <soapenv:Body>
    <ProcessPayment>
      <amount>99.99</amount>
      <currency>USD</currency>
    </ProcessPayment>
  </soapenv:Body>
</soapenv:Envelope>

And get a proper XML response matching the WSDL output message schema — transaction IDs, status codes, timestamps — all generated automatically.

Real Use Cases

• Legacy system integration — your modern frontend talks to a SOAP middleware. Mock the SOAP layer so frontend development isn't blocked.
• Third-party vendor testing — the vendor's sandbox is rate-limited or unreliable. Use a moqapi.dev mock for deterministic testing.
• Migration projects — replacing SOAP with REST? Keep the SOAP mock running while building the new REST endpoints side by side.
• CI/CD pipelines — no more flaky tests caused by calling real SOAP endpoints in staging.

Getting Started

1. Go to Mock APIs → SOAP / WSDL in your dashboard.
2. Click Create Mock API and choose SOAP / WSDL.
3. Paste the WSDL URL or upload the file.
4. Click Import — every operation is live and ready to call.

No Java runtime, no Axis2, no SoapUI. Just paste and go.

Try it at moqapi.dev/signup.