Convert Any SOAP API to REST JSON
A SOAP to REST converter that keeps your existing SOAP service in place. Publish clean REST JSON endpoints, API keys, and OpenAPI docs for client teams — no custom proxy layer needed.
Best fit for government SOAP systems, ERP integrations, and partner-managed WSDLs you cannot change.
No credit card required · 100 free calls included · Start on the free plan
<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="..."
>
<soap:Body>
<GetUser>
<userId>42</userId>
</GetUser>
</soap:Body>
</soap:Envelope>GET /api/v1/acct_1234abcd/my-service/GetUser?userId=42
X-API-Key: sl_live_...
→ Response:
{
"result": { "id": 42, "name": "Alice" },
"meta": { "duration_ms": 120 }
}- SOAP 1.1 & 1.2
- Binding support
- GET + POST
- Method policies
- AES-256-GCM
- Credential encryption
- OpenAPI 3.0
- Generated output
SOAP to REST conversion, fully automated
SOAPless is a SOAP proxy and API gateway that handles XML to JSON conversion so your team can consume legacy SOAP services like modern REST APIs.
WSDL Auto-Parsing
Paste a WSDL URL and SOAPless maps operations, types, and faults into REST endpoints automatically — even when the upstream WSDL is not yours to change.
SOAP to REST JSON Proxy
Send JSON, get JSON back. The SOAP gateway handles XML envelope construction, SOAP namespace resolution, and fault translation behind the scenes.
Method Controls + API Keys
Expose POST by default, optionally add GET for read-style operations, and protect every endpoint with account-level API keys.
OpenAPI Spec & API Explorer
Auto-generate OpenAPI 3.0 specs from WSDL, test operations from the dashboard explorer, and review recent call logs — all without touching XML.
Where SOAP API modernization matters most
SOAPless is a SOAP API gateway for teams that need REST JSON access to upstream SOAP services they cannot rewrite.
Vendor-managed SOAP APIs you cannot change
When the upstream WSDL belongs to a partner, package vendor, or outsourced team, use SOAPless as a SOAP gateway to centralize XML to JSON conversion instead of teaching every downstream app to speak SOAP.
Legacy API modernization without rewrites
Treat internal legacy SOAP like an external dependency. Give product teams stable REST JSON endpoints, API keys, and OpenAPI specs instead of WSDL fragments and copied XML envelopes.
Shield delivery teams from raw SOAP faults
Normalize the contract boundary before each consumer team has to debug SOAPAction headers, XML namespace mismatches, WCF-style faults, and SOAP binding errors on its own.
SOAP to REST conversion in three steps
No rewrite project
Your SOAP backend stays untouched. SOAPless only adds the developer-friendly facade.
Safer rollout
Start with POST everywhere, then selectively expose GET where it makes operational sense.
Faster handoff
Client teams get stable URLs, JSON payloads, and OpenAPI output instead of WSDL and XML samples.
Register your WSDL
Add your SOAP service's WSDL URL. SOAPless parses operations and generates REST endpoints automatically.
Get an API key
Create a key from the dashboard. Pass it as X-API-Key to authenticate every REST request.
Call REST JSON endpoints
POST JSON to the generated endpoint. SOAPless converts it to SOAP XML, calls the upstream service, and returns JSON.
Simple, transparent pricing
Start free. No credit card required.
Starter
billed annually — $29/mo monthly
- API calls / month10,000
- Rate limitNo rate limit
- SOAP services5
- API keys5
- + $0.01 per call beyond limit
Pro
billed annually — $99/mo monthly
- API calls / month100,000
- Rate limitNo rate limit
- SOAP servicesUnlimited
- API keys20
- + $0.01 per call beyond limit
Prices exclude applicable taxes. Tax is calculated at checkout based on your location.
Need higher volumes? Contact us for Enterprise pricing.
Frequently asked questions
- What is SOAP to REST conversion?
- SOAP to REST conversion transforms legacy SOAP/XML web services into modern REST JSON APIs. SOAPless automates this by parsing your WSDL, generating REST endpoints, and handling XML to JSON translation in real time — no code rewrites required.
- Do I need to modify my existing SOAP service?
- No. SOAPless works as a SOAP proxy that sits in front of your existing service. The upstream WSDL and SOAP endpoints remain completely untouched.
- What SOAP versions are supported?
- SOAPless supports both SOAP 1.1 and SOAP 1.2 bindings, including document/literal and RPC/literal styles. WS-Security and basic auth are also supported for upstream authentication.
- How is this different from building a custom proxy?
- A custom SOAP proxy requires you to write and maintain XML parsing, envelope construction, fault handling, and namespace resolution. SOAPless handles all of this automatically from your WSDL — plus you get API keys, OpenAPI specs, and usage logs out of the box.
- Can I use SOAPless as a SOAP API gateway?
- Yes. SOAPless acts as a SOAP API gateway with built-in authentication, method-level access control (GET/POST policies), rate limiting, and usage tracking per API key.
Stop wrestling with SOAP XML conversion.
Convert SOAP to REST in minutes. Modernize your legacy API integration on your own timeline.