freee-mcp
Model Context Protocol (MCP) server for freee API integration
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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freee
Source: npm · also listed on Glama, github_code
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Install from
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
OpenTelemetry Core: Unbounded memory allocation in W3C Baggage propagation
CORS_ALLOWED_ORIGINSFREEE_API_BASE_URLFREEE_API_BASE_URL_ACCOUNTINGFREEE_API_BASE_URL_HRFREEE_AUTHORIZATION_ENDPOINTFREEE_CALLBACK_PORTFREEE_CLIENT_IDFREEE_CLIENT_SECRETFREEE_SCOPEFREEE_SIGN_API_URLFREEE_SIGN_CLIENT_IDFREEE_SIGN_CLIENT_SECRETFREEE_TOKEN_ENDPOINTHTTP_HEADERS_TIMEOUT_MSHTTP_KEEP_ALIVE_TIMEOUT_MSHTTP_REQUEST_TIMEOUT_MSISSUER_URLJWT_SECRETKUBERNETES_SERVICE_HOSTLOG_LEVELMCP_JWT_AUDIENCEMCP_JWT_AUDIENCE_ENFORCEMCP_PUBLIC_BASE_URLOTEL_DEPLOYMENT_ENVIRONMENTOTEL_ENABLEDOTEL_EXPORTER_OTLP_ENDPOINTOTEL_METRICS_EXPORTEROTEL_SERVICE_NAMEOTEL_TRACES_SAMPLER_ARGOTEL_TRACES_SAMPLER_RULESRATE_LIMIT_ENABLEDSIGN_AUTHORIZATION_ENDPOINTSIGN_CORS_ALLOWED_ORIGINSSIGN_ISSUER_URLSIGN_JWT_SECRETSIGN_LOG_LEVELSIGN_PORTSIGN_RATE_LIMIT_ENABLEDSIGN_REDIS_URLSIGN_SCOPESIGN_TOKEN_ENDPOINTXDG_CONFIG_HOMEPORTREDIS_URLTool annotations
4/5 tools have annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
5/5 tools missing one or more hints — with_body (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); sign_authenticate (missing: readOnlyHint, idempotentHint, openWorldHint); sign_auth_status (missing: destructiveHint, idempotentHint, openWorldHint), +2 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
Only 0/5 tool handlers declare input schemas (0%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
3/5 tool handlers wrap calls in try/catch (60%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
Only 1/5 tools referenced in tests (20%)
Write tests that reference each tool by name so every tool has at least one test.
Dev dependencies
1 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
Dependency freshness
1/21 production deps stale: prompts@2023-10-21 (2.7y)
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