Error using @ivotoby/openapi-mcp-server

[zhoujh001]

@ivotoby/openapi-mcp-server
{
"mcpServers": {
"openapi": {
"command": "npx",
"args": [
"-y",
"@ivotoby/openapi-mcp-server"
],
"env": {
"API_BASE_URL": "https://petstore3.swagger.io/api/v3",
"OPENAPI_SPEC_PATH": "https://petstore3.swagger.io/api/v3/openapi.json",
"API_HEADERS": "Authorization:Bearer token123,X-API-Key:your-api-key"
}
}
}
}

Bug description
com.azure.core.exception.HttpResponseException: Status code 400, "{
"error": {
"message": "Invalid schema for function 'findPetsByTags': In context=('properties', 'tags'), array schema missing items.",
"type": "invalid_request_error",
"param": "tools[3].function.parameters",
"code": "invalid_function_parameters"
}
}"

[zhuxj1030]

Same problem

[csterwa]

@zhoujh001 Can you please provide more details on the steps to reproduce? It seems like you are connecting to public Pet Store Swagger API and then you are making a call using a model interaction that tries to execute findPetsByTags API route? Is that correct? It seems like this is an issue on the @ivotoby/openapi-mcp-server and sending the tags as an array during that model interaction? And it seems that the MCP server is being connected to from a Spring AI based MCP client, am I correct on this assumption, as well?

Any more details on the specific steps you followed to get this error would be useful.