mcp-openapi-server
MCP Server (Model Context Protocol) for turning OpenAPI specifications into a MCP Resource
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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ivo-toby
Source: npm · also listed on github_code, ModelScope
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
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
API_BASE_URLThe base URL of your APIAPI_HEADERSComma-separated key:value pairs for API authentication headersCA_CERT_PATHPath to custom CA certificate PEM file for private/internal CAsCLIENT_CERT_PATHPath to client certificate PEM file for mutual TLSCLIENT_KEY_PASSPHRASEPassphrase for an encrypted client private keyCLIENT_KEY_PATHPath to client private key PEM file for mutual TLSDISABLE_ABBREVIATIONDisable name optimization (this could throw errors when name is > 64 chars)ENDPOINT_PATHEndpoint path for HTTP transport (default: "/mcp")HTTP_HOSTHost for HTTP transport (default: "127.0.0.1")HTTP_PORTPort for HTTP transport (default: 3000)OPENAPI_SPEC_FROM_STDINSet to "true" to read OpenAPI spec from standard inputOPENAPI_SPEC_INLINEProvide OpenAPI spec content directly as a stringOPENAPI_SPEC_PATHURL or path to your OpenAPI specificationPROMPTS_INLINEProvide prompts directly as JSON stringPROMPTS_PATHPath or URL to prompts JSON/YAML fileREJECT_UNAUTHORIZEDWhether to reject untrusted server certificates (default: true)RESOURCES_INLINEProvide resources directly as JSON stringRESOURCES_PATHPath or URL to resources JSON/YAML fileSERVER_NAMEName for the MCP server (default: "mcp-openapi-server")SERVER_VERSIONVersion of the server (default: "1.0.0")TOOLS_MODETools loading mode: "all" (load all endpoint-based tools), "dynamic" (load only meta-tools), or "explicit" (load only tools specified in includeTools) (default: "all")Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
3/3 tools missing one or more hints — list-api-endpoints (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get-api-endpoint-schema (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); invoke-api-endpoint (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Production dependencies are patched
0 critical, 12 high severity in production deps — @modelcontextprotocol/sdk@1.24.1 (high), @modelcontextprotocol/sdk@1.24.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dev dependencies
1 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
Dependency freshness
1/4 production deps stale: openapi-types@2023-05-24 (3.3y)
Domain consistency
npm scope @ivotoby doesn't match GitHub owner ivo-toby
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
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