Palmyr — the complete, unedited output of the deterministic mcptrustchecker engine v1.10.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.10.0",
"methodologyVersion": "mcptrustchecker-1.9"
},
"target": {
"id": "https://palmyr.ai/mcp",
"source": {
"kind": "http",
"origin": "https://palmyr.ai/mcp"
},
"server": {
"name": "ai.palmyr/palmyr",
"version": "1.0.0"
}
},
"grade": "A",
"score": {
"score": 97,
"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": "coverage-honesty",
"level": "live",
"label": "inspection depth (live) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [],
"methodologyVersion": "mcptrustchecker-1.9"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service"
],
"tags": [
"untrusted-input",
"external-sink"
]
},
"coverage": {
"level": "live",
"inputs": {
"toolSurface": true,
"implementationSource": false,
"packageMetadata": false,
"liveTransport": true
},
"caveats": []
},
"findings": [
{
"ruleId": "MTC-FLOW-005",
"title": "Untrusted input can drive an external action",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "Untrusted-input tools ([card_buy, email_read_messages, phone_read_messages, wait_for_otp]) co-exist with external-action tools ([phone_send_sms, phone_read_messages, wait_for_otp, phone_temp_number, twitter_post]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.",
"remediation": "Require confirmation for state-changing/egress actions triggered after processing untrusted content.",
"location": {
"kind": "flow",
"name": "card_buy → phone_send_sms"
},
"evidence": "untrusted [card_buy, email_read_messages, phone_read_messages, wait_for_otp] → sinks [phone_send_sms, phone_read_messages, wait_for_otp, phone_temp_number, twit",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"card_buy",
"email_read_messages",
"phone_read_messages",
"wait_for_otp"
],
"sinks": [
"phone_send_sms",
"phone_read_messages",
"wait_for_otp",
"phone_temp_number",
"twitter_post"
]
}
},
{
"ruleId": "MTC-NET-005",
"title": "Remote HTTP MCP endpoint",
"category": "network",
"severity": "info",
"confidence": "strong",
"description": "Remote endpoint palmyr.ai. MCP Trust Checker does not test server-side authentication/authorization; verify the endpoint requires auth.",
"location": {
"kind": "transport"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"card_buy",
"email_read_messages",
"phone_read_messages",
"wait_for_otp"
],
"sensitiveSource": [],
"externalSink": [
"phone_send_sms",
"phone_read_messages",
"wait_for_otp",
"phone_temp_number",
"twitter_post"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "palmyr_pricing",
"tags": [],
"reasons": {}
},
{
"tool": "palmyr_capabilities",
"tags": [],
"reasons": {}
},
{
"tool": "i402_plan",
"tags": [],
"reasons": {}
},
{
"tool": "card_buy",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "card_status",
"tags": [],
"reasons": {}
},
{
"tool": "card_get",
"tags": [],
"reasons": {}
},
{
"tool": "card_list",
"tags": [],
"reasons": {}
},
{
"tool": "email_create_inbox",
"tags": [],
"reasons": {}
},
{
"tool": "email_create_temp",
"tags": [],
"reasons": {}
},
{
"tool": "email_extend_temp",
"tags": [],
"reasons": {}
},
{
"tool": "email_send",
"tags": [],
"reasons": {}
},
{
"tool": "email_read_messages",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"read_message\""
]
}
},
{
"tool": "phone_buy_number",
"tags": [],
"reasons": {}
},
{
"tool": "phone_send_sms",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"sms\""
]
}
},
{
"tool": "phone_read_messages",
"tags": [
"untrusted-input",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"read_message\""
],
"external-sink": [
"keyword \"sms\""
]
}
},
{
"tool": "wait_for_otp",
"tags": [
"untrusted-input",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"read_message\""
],
"external-sink": [
"keyword \"sms\""
]
}
},
{
"tool": "phone_temp_number",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"sms\""
]
}
},
{
"tool": "phone_extend_temp",
"tags": [],
"reasons": {}
},
{
"tool": "twitter_post",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"tweet\""
]
}
},
{
"tool": "tiktok_post",
"tags": [],
"reasons": {}
},
{
"tool": "domain_check",
"tags": [],
"reasons": {}
},
{
"tool": "domain_register",
"tags": [],
"reasons": {}
},
{
"tool": "compute_deploy",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "f8ad3ef1132b6603a4c6ea01802af6db51f8315fe502855c682bbd7d8f9a365c",
"stats": {
"tools": 23,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 1,
"low": 0,
"info": 1
}
}
}