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Add WSDL support #4

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6 changes: 3 additions & 3 deletions README.md
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Expand Up @@ -7,9 +7,9 @@

![openapi-mcp logo](openapi-mcp.png)

**Generate MCP tool definitions directly from a Swagger/OpenAPI specification file.**
**Generate MCP tool definitions directly from a Swagger/OpenAPI or WSDL specification file.**

OpenAPI-MCP is a dockerized MCP server that reads a `swagger.json` or `openapi.yaml` file and generates a corresponding [Model Context Protocol (MCP)](https://modelcontextprotocol.io/introduction) toolset. This allows MCP-compatible clients like [Cursor](https://cursor.sh/) to interact with APIs described by standard OpenAPI specifications. Now you can enable your AI agent to access any API by simply providing its OpenAPI/Swagger specification - no additional coding required.
OpenAPI-MCP is a dockerized MCP server that reads a `swagger.json`, `openapi.yaml`, or `service.wsdl` file and generates a corresponding [Model Context Protocol (MCP)](https://modelcontextprotocol.io/introduction) toolset. This allows MCP-compatible clients like [Cursor](https://cursor.sh/) to interact with APIs described by standard OpenAPI or SOAP specifications. Now you can enable your AI agent to access any API by simply providing its spec file - no additional coding required.

## Table of Contents

Expand Down Expand Up @@ -38,7 +38,7 @@ Run the demo yourself: [Running the Weatherbit Example (Step-by-Step)](#running-

## Features

- **OpenAPI v2 (Swagger) & v3 Support:** Parses standard specification formats.
- **OpenAPI v2/v3 & WSDL Support:** Parses standard OpenAPI or SOAP WSDL specifications.
- **Schema Generation:** Creates MCP tool schemas from OpenAPI operation parameters and request/response definitions.
- **Secure API Key Management:**
- Injects API keys into requests (`header`, `query`, `path`, `cookie`) based on command-line configuration.
Expand Down
4 changes: 2 additions & 2 deletions cmd/openapi-mcp/main.go
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Expand Up @@ -29,7 +29,7 @@ func (i *stringSliceFlag) Set(value string) error {
func main() {
// --- Flag Definitions First ---
// Define specPath early so we can use it for .env loading
specPath := flag.String("spec", "", "Path or URL to the OpenAPI specification file (required)")
specPath := flag.String("spec", "", "Path or URL to the OpenAPI or WSDL specification file (required)")
port := flag.Int("port", 8080, "Port to run the MCP server on")

apiKey := flag.String("api-key", "", "Direct API key value")
Expand Down Expand Up @@ -126,7 +126,7 @@ func main() {
// --- Call Parser ---
specDoc, version, err := parser.LoadSwagger(cfg.SpecPath)
if err != nil {
log.Fatalf("Failed to load OpenAPI/Swagger spec: %v", err)
log.Fatalf("Failed to load specification: %v", err)
}
log.Printf("Spec type %s loaded successfully from %s.\n", version, cfg.SpecPath)

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154 changes: 154 additions & 0 deletions example/wsdl/tempconvert.wsdl
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@@ -0,0 +1,154 @@
<?xml version="1.0" encoding="utf-8"?>
<wsdl:definitions xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="https://www.w3schools.com/xml/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" targetNamespace="https://www.w3schools.com/xml/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
<wsdl:types>
<s:schema elementFormDefault="qualified" targetNamespace="https://www.w3schools.com/xml/">
<s:element name="FahrenheitToCelsius">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="Fahrenheit" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="FahrenheitToCelsiusResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="FahrenheitToCelsiusResult" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="CelsiusToFahrenheit">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="Celsius" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="CelsiusToFahrenheitResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="CelsiusToFahrenheitResult" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="string" nillable="true" type="s:string" />
</s:schema>
</wsdl:types>
<wsdl:message name="FahrenheitToCelsiusSoapIn">
<wsdl:part name="parameters" element="tns:FahrenheitToCelsius" />
</wsdl:message>
<wsdl:message name="FahrenheitToCelsiusSoapOut">
<wsdl:part name="parameters" element="tns:FahrenheitToCelsiusResponse" />
</wsdl:message>
<wsdl:message name="CelsiusToFahrenheitSoapIn">
<wsdl:part name="parameters" element="tns:CelsiusToFahrenheit" />
</wsdl:message>
<wsdl:message name="CelsiusToFahrenheitSoapOut">
<wsdl:part name="parameters" element="tns:CelsiusToFahrenheitResponse" />
</wsdl:message>
<wsdl:message name="FahrenheitToCelsiusHttpPostIn">
<wsdl:part name="Fahrenheit" type="s:string" />
</wsdl:message>
<wsdl:message name="FahrenheitToCelsiusHttpPostOut">
<wsdl:part name="Body" element="tns:string" />
</wsdl:message>
<wsdl:message name="CelsiusToFahrenheitHttpPostIn">
<wsdl:part name="Celsius" type="s:string" />
</wsdl:message>
<wsdl:message name="CelsiusToFahrenheitHttpPostOut">
<wsdl:part name="Body" element="tns:string" />
</wsdl:message>
<wsdl:portType name="TempConvertSoap">
<wsdl:operation name="FahrenheitToCelsius">
<wsdl:input message="tns:FahrenheitToCelsiusSoapIn" />
<wsdl:output message="tns:FahrenheitToCelsiusSoapOut" />
</wsdl:operation>
<wsdl:operation name="CelsiusToFahrenheit">
<wsdl:input message="tns:CelsiusToFahrenheitSoapIn" />
<wsdl:output message="tns:CelsiusToFahrenheitSoapOut" />
</wsdl:operation>
</wsdl:portType>
<wsdl:portType name="TempConvertHttpPost">
<wsdl:operation name="FahrenheitToCelsius">
<wsdl:input message="tns:FahrenheitToCelsiusHttpPostIn" />
<wsdl:output message="tns:FahrenheitToCelsiusHttpPostOut" />
</wsdl:operation>
<wsdl:operation name="CelsiusToFahrenheit">
<wsdl:input message="tns:CelsiusToFahrenheitHttpPostIn" />
<wsdl:output message="tns:CelsiusToFahrenheitHttpPostOut" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="TempConvertSoap" type="tns:TempConvertSoap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
<wsdl:operation name="FahrenheitToCelsius">
<soap:operation soapAction="https://www.w3schools.com/xml/FahrenheitToCelsius" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="CelsiusToFahrenheit">
<soap:operation soapAction="https://www.w3schools.com/xml/CelsiusToFahrenheit" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:binding name="TempConvertSoap12" type="tns:TempConvertSoap">
<soap12:binding transport="http://schemas.xmlsoap.org/soap/http" />
<wsdl:operation name="FahrenheitToCelsius">
<soap12:operation soapAction="https://www.w3schools.com/xml/FahrenheitToCelsius" style="document" />
<wsdl:input>
<soap12:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap12:body use="literal" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="CelsiusToFahrenheit">
<soap12:operation soapAction="https://www.w3schools.com/xml/CelsiusToFahrenheit" style="document" />
<wsdl:input>
<soap12:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap12:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:binding name="TempConvertHttpPost" type="tns:TempConvertHttpPost">
<http:binding verb="POST" />
<wsdl:operation name="FahrenheitToCelsius">
<http:operation location="/FahrenheitToCelsius" />
<wsdl:input>
<mime:content type="application/x-www-form-urlencoded" />
</wsdl:input>
<wsdl:output>
<mime:mimeXml part="Body" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="CelsiusToFahrenheit">
<http:operation location="/CelsiusToFahrenheit" />
<wsdl:input>
<mime:content type="application/x-www-form-urlencoded" />
</wsdl:input>
<wsdl:output>
<mime:mimeXml part="Body" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="TempConvert">
<wsdl:port name="TempConvertSoap" binding="tns:TempConvertSoap">
<soap:address location="http://www.w3schools.com/xml/tempconvert.asmx" />
</wsdl:port>
<wsdl:port name="TempConvertSoap12" binding="tns:TempConvertSoap12">
<soap12:address location="http://www.w3schools.com/xml/tempconvert.asmx" />
</wsdl:port>
<wsdl:port name="TempConvertHttpPost" binding="tns:TempConvertHttpPost">
<http:address location="http://www.w3schools.com/xml/tempconvert.asmx" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
1 change: 1 addition & 0 deletions go.mod
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Expand Up @@ -9,6 +9,7 @@ require (
github.com/go-openapi/loads v0.22.0
github.com/go-openapi/spec v0.21.0
github.com/google/uuid v1.6.0
github.com/hooklift/gowsdl v0.5.0
github.com/joho/godotenv v1.5.1
github.com/stretchr/testify v1.9.0
)
Expand Down
6 changes: 6 additions & 0 deletions go.sum
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@@ -1,5 +1,6 @@
github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/getkin/kin-openapi v0.131.0 h1:NO2UeHnFKRYhZ8wg6Nyh5Cq7dHk4suQQr72a4pMrDxE=
Expand All @@ -26,6 +27,8 @@ github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=
github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/hooklift/gowsdl v0.5.0 h1:DE8RevqhGPLchumV/V7OwbCzfJ8lcozFg1uWC/ESCBQ=
github.com/hooklift/gowsdl v0.5.0/go.mod h1:9kRc402w9Ci/Mek5a1DNgTmU14yPY8fMumxNVvxhis4=
github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
Expand All @@ -52,6 +55,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
github.com/ugorji/go/codec v1.2.7 h1:YPXUKf7fYbp/y8xloBqZOw2qaVggbfwMlI8WM3wZUJ0=
Expand All @@ -61,5 +66,6 @@ go.mongodb.org/mongo-driver v1.14.0/go.mod h1:Vzb0Mk/pa7e6cWw85R4F/endUC3u0U9jGc
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
3 changes: 3 additions & 0 deletions pkg/mcp/types.go
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Expand Up @@ -15,6 +15,9 @@ type OperationDetail struct {
Path string `json:"path"` // Path template (e.g., /users/{id})
BaseURL string `json:"baseUrl"`
Parameters []ParameterDetail `json:"parameters,omitempty"`
SOAPAction string `json:"soapAction,omitempty"`
Namespace string `json:"namespace,omitempty"`
IsSOAP bool `json:"isSoap,omitempty"`
// Add RequestBody schema if needed
}

Expand Down
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