Lightning Faucet — the complete, unedited output of the deterministic mcptrustchecker engine v1.13.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.13.0",
"methodologyVersion": "mcptrustchecker-1.13"
},
"target": {
"id": "lightning-faucet-mcp",
"source": {
"kind": "package",
"origin": "lightning-faucet-mcp"
},
"server": {
"name": "lightning-faucet-mcp"
}
},
"grade": "A",
"score": {
"score": 96,
"threatScore": 100,
"grade": "A",
"band": "A",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"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": "repo",
"label": "publisher verification (public source) — no provenance, but the source is public and inspectable",
"appliedPenalty": 1
},
{
"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-1.13"
},
"capability": {
"level": "moderate",
"reasons": [
"can send data / act on an external service"
],
"tags": [
"external-sink"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (37 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-CAP-007",
"title": "Unconstrained URL/host parameter \"url\" on \"register_webhook\"",
"category": "network",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"register_webhook\" takes a URL/host parameter \"url\" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).",
"remediation": "Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.",
"location": {
"kind": "tool",
"name": "register_webhook",
"field": "inputSchema.properties.url"
},
"owasp": "LLM06:2025 Excessive Agency",
"data": {
"param": "url"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "check_balance",
"tags": [],
"reasons": {}
},
{
"tool": "pay_l402_api",
"tags": [],
"reasons": {}
},
{
"tool": "pay_invoice",
"tags": [],
"reasons": {}
},
{
"tool": "create_invoice",
"tags": [],
"reasons": {}
},
{
"tool": "get_invoice_status",
"tags": [],
"reasons": {}
},
{
"tool": "get_transactions",
"tags": [],
"reasons": {}
},
{
"tool": "register_operator",
"tags": [],
"reasons": {}
},
{
"tool": "get_deposit_invoice",
"tags": [],
"reasons": {}
},
{
"tool": "create_agent",
"tags": [],
"reasons": {}
},
{
"tool": "fund_agent",
"tags": [],
"reasons": {}
},
{
"tool": "list_agents",
"tags": [],
"reasons": {}
},
{
"tool": "set_operator_key",
"tags": [],
"reasons": {}
},
{
"tool": "set_agent_credentials",
"tags": [],
"reasons": {}
},
{
"tool": "whoami",
"tags": [],
"reasons": {}
},
{
"tool": "register_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "list_webhooks",
"tags": [],
"reasons": {}
},
{
"tool": "delete_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\"",
"parameter \"webhook\""
]
}
},
{
"tool": "test_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\"",
"parameter \"webhook\""
]
}
},
{
"tool": "get_budget_status",
"tags": [],
"reasons": {}
},
{
"tool": "set_budget",
"tags": [],
"reasons": {}
},
{
"tool": "deactivate_agent",
"tags": [],
"reasons": {}
},
{
"tool": "reactivate_agent",
"tags": [],
"reasons": {}
},
{
"tool": "recover_account",
"tags": [],
"reasons": {}
},
{
"tool": "rotate_api_key",
"tags": [],
"reasons": {}
},
{
"tool": "get_info",
"tags": [],
"reasons": {}
},
{
"tool": "decode_invoice",
"tags": [],
"reasons": {}
},
{
"tool": "get_rate_limits",
"tags": [],
"reasons": {}
},
{
"tool": "withdraw",
"tags": [],
"reasons": {}
},
{
"tool": "sweep_agent",
"tags": [],
"reasons": {}
},
{
"tool": "pay_lightning_address",
"tags": [],
"reasons": {}
},
{
"tool": "export_transactions",
"tags": [],
"reasons": {}
},
{
"tool": "get_agent_analytics",
"tags": [],
"reasons": {}
},
{
"tool": "transfer_to_agent",
"tags": [],
"reasons": {}
},
{
"tool": "delete_agent",
"tags": [],
"reasons": {}
},
{
"tool": "lnurl_auth",
"tags": [],
"reasons": {}
},
{
"tool": "claim_lnurl_withdraw",
"tags": [],
"reasons": {}
},
{
"tool": "keysend",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "79a188c3afef752b488cfba98ffead966b89fd70230133f892bd5acc5fb08262",
"stats": {
"tools": 37,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 1,
"low": 0,
"info": 0
}
}
}