Yfinance Market — the complete, unedited output of the deterministic mcptrustchecker engine v1.8.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.8.0",
"methodologyVersion": "mcptrustchecker-1.8"
},
"target": {
"id": "yfinance-market-mcp",
"source": {
"kind": "package",
"origin": "yfinance-market-mcp"
},
"server": {
"name": "yfinance-market-mcp"
}
},
"grade": "A",
"score": {
"score": 90,
"threatScore": 98,
"grade": "A",
"band": "A",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 2.1,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-SUP-011",
"category": "supply-chain",
"severity": "low",
"confidence": "strong",
"rawWeight": 3,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 2.1
},
{
"kind": "client",
"term": "capability-exposure",
"level": "moderate",
"label": "capability blast radius (moderate) — client exposure if the model is manipulated",
"appliedPenalty": 3
},
{
"kind": "client",
"term": "verification-discount",
"level": "none",
"label": "publisher verification (unlocatable) — no provenance and no public repository to inspect",
"appliedPenalty": 5
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "source",
"label": "inspection depth (source) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [],
"methodologyVersion": "mcptrustchecker-1.8"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)"
],
"tags": [
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (32 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command \"npx -y <package>\"."
]
},
"findings": [
{
"ruleId": "MTC-SUP-011",
"title": "Package has no source repository",
"category": "supply-chain",
"severity": "low",
"confidence": "strong",
"description": "\"yfinance-market-mcp\" declares no repository URL, so its published artifact cannot be compared against reviewable source.",
"remediation": "Prefer packages that link to public, reviewable source.",
"location": {
"kind": "package",
"name": "yfinance-market-mcp"
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"yfinance-market-mcp\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "yfinance-market-mcp"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "get_price_history",
"tags": [],
"reasons": {}
},
{
"tool": "get_dividends",
"tags": [],
"reasons": {}
},
{
"tool": "get_splits",
"tags": [],
"reasons": {}
},
{
"tool": "get_ticker_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_fast_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_ticker_summary",
"tags": [],
"reasons": {}
},
{
"tool": "get_ticker_news",
"tags": [],
"reasons": {}
},
{
"tool": "search_news",
"tags": [],
"reasons": {}
},
{
"tool": "get_options_expirations",
"tags": [],
"reasons": {}
},
{
"tool": "get_options_chain",
"tags": [],
"reasons": {}
},
{
"tool": "get_income_statement",
"tags": [],
"reasons": {}
},
{
"tool": "get_balance_sheet",
"tags": [],
"reasons": {}
},
{
"tool": "get_cash_flow",
"tags": [],
"reasons": {}
},
{
"tool": "get_analyst_price_targets",
"tags": [],
"reasons": {}
},
{
"tool": "get_recommendations",
"tags": [],
"reasons": {}
},
{
"tool": "get_upgrades_downgrades",
"tags": [],
"reasons": {}
},
{
"tool": "get_earnings_estimate",
"tags": [],
"reasons": {}
},
{
"tool": "get_revenue_estimate",
"tags": [],
"reasons": {}
},
{
"tool": "get_growth_estimates",
"tags": [],
"reasons": {}
},
{
"tool": "get_eps_trend",
"tags": [],
"reasons": {}
},
{
"tool": "get_institutional_holders",
"tags": [],
"reasons": {}
},
{
"tool": "get_insider_transactions",
"tags": [],
"reasons": {}
},
{
"tool": "get_major_holders",
"tags": [],
"reasons": {}
},
{
"tool": "get_earnings_dates",
"tags": [],
"reasons": {}
},
{
"tool": "get_calendar",
"tags": [],
"reasons": {}
},
{
"tool": "search_tickers",
"tags": [],
"reasons": {}
},
{
"tool": "get_sector_data",
"tags": [],
"reasons": {}
},
{
"tool": "get_industry_data",
"tags": [],
"reasons": {}
},
{
"tool": "screen_stocks",
"tags": [],
"reasons": {}
},
{
"tool": "check_fed_earnings",
"tags": [],
"reasons": {}
},
{
"tool": "calculate_range",
"tags": [],
"reasons": {}
},
{
"tool": "batch_download",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
}
],
"surfaceDigest": "afbba9b1bbdb79dae4c9cb84a423893cc93ed3ac3e2b12549a9850d00b3fa83b",
"stats": {
"tools": 32,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 1,
"info": 1
}
}
}