nhplug-mcp (PLUG-OpenAPI/nhplug-mcp) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
Local MCP server that connects Claude Desktop to NH Investment & Securities Open API, providing Korean domestic/overseas stock quotes, account balance, and order preparation via natural language. It handles authentication and exposes REST and real-time APIs through meta tools.
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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PLUG-OpenAPI
Source: Glama
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
APP_KEY.env 에 / APP_SECRET / BASE_URL 을 채운 뒤APP_SECRET.env 에 APP_KEY / / BASE_URL 을 채운 뒤NHPLUG_APP_KEY"": "발급받은_APP_KEY",NHPLUG_APP_SECRET"": "발급받은_APP_SECRET",NHPLUG_AUTH_URLN2 고객은 위 env 에 두 줄을 n2plug 로 추가하세요: "NHPLUG_BASE_URL": "https://api.n2plug.com:8443", "": "https://api.n2plug.com:8443". (개발·검증은 BASE_URL 을 moapi.n2plug.com, AUTH_URL 은 api.n2plug.com 유지)NHPLUG_BASE_URL"": "https://api.nhplug.com:8443"NHPLUG_DEFAULT_ACCOUNT잔고/주문 단축 도구에서 계좌번호 생략 시 사용NHPLUG_ENABLE_TRADINGtrue 일 때만 주문(거래) 도구 노출. 기본 falseNHPLUG_SUCCESS_CODES[business] 00007 … 같은 오류 HTTP 는 200 이지만 업무 오류입니다. 성공 코드는 00000·00166·00221·13578 (+ rsp_msg 에 "완료" 포함 시 성공으로 보는 안전망)이며, 그 외는 실패로 처리합니다(성공 오판 방지). 교체는Tool 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
6/6 tools missing one or more hints — list_apis (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); describe_api (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); call_api (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +3 more. 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.
Tool inputs are validated
3/6 tool handlers declare input schemas (50%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
4/6 tool handlers wrap calls in try/catch (67%)
Wrap each tool handler body in try/catch and return a structured error response.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@1.0.4 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Domain consistency
npm scope @nhplug doesn't match GitHub owner plug-openapi
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
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