A standalone proxy that transforms any OpenAPI or Swagger-described REST API into an MCP server by mapping API operations to executable MCP tools. It enables AI clients to interact with existing web services through automated HTTP requests based on their official documentation.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge
Axios: Header Injection via Prototype Pollution
Allocation of Resources Without Limits or Throttling in Axios
Axios: Regular Expression Denial of Service (ReDoS) via Cookie Name Injection
API_BASE_URLMCP_API_BASE_URLBase URL for API requests http://127.0.0.1:3000MCP_API_BASIC_AUTHBasic auth for API requests: username:password. Use when the remote API is protected by HTTP Basic Auth. If both this and MCP_API_BEARER_TOKEN are set, Bearer is used. -MCP_API_BEARER_TOKENMCP_API_BASIC_AUTH Basic auth for API requests: username:password. Use when the remote API is protected by HTTP Basic Auth. If both this and are set, Bearer is used. -MCP_CONVERT_HTML_TO_MARKDOWNConvert HTML tags in operation descriptions to Markdown format. Set to false to disable. trueMCP_EXCLUDE_ENDPOINTS2. Collect operations (method + path). Filter: if MCP_INCLUDE_ENDPOINTS is set, keep only those; otherwise drop any in . Include has priority over exclude.MCP_HOSTBind host 0.0.0.0MCP_INCLUDE_ENDPOINTS2. Collect operations (method + path). Filter: if is set, keep only those; otherwise drop any in MCP_EXCLUDE_ENDPOINTS. Include has priority over exclude.MCP_INSTRUCTIONS_FILEPath to custom instructions file (text file with MCP server instructions) -MCP_INSTRUCTIONS_MODEMCP_LOG_LEVELLog levels: DEBUG, INFO, WARN, ERROR (configurable via env var, default: INFO)MCP_OPENAPI_SPEC1. Load OpenAPI spec from (URL starting with http:// or https://, or file path).MCP_OPENAPI_SPEC_FILEBackward compatibility: MCP_OPENAPI_SPEC_URL and are still supported but deprecated. MCP_OPENAPI_SPEC takes precedence if set.MCP_OPENAPI_SPEC_URLBackward compatibility: and MCP_OPENAPI_SPEC_FILE are still supported but deprecated. MCP_OPENAPI_SPEC takes precedence if set.MCP_SERVER_NAMEServer name reported to MCP clients openapi-to-mcpMCP_TOOL_PREFIXPrefix for tool names (e.g. api_ -> api_messages, api_channels) (empty)Production dependencies are patched
0 critical, 10 high severity in production deps — axios@1.13.5 (high), axios@1.13.5 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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