MCP Server Scan by Agentropolis
MCP Server Scan by Agentropolis: scan a live remote MCP server URL (or pasted tools/list) before your agent connects. Reads initialize + tools/list only, never calls a tool. Flags poisoned or hidden tool instructions (IMPORTANT tags, conceal-from-user, secret or side-channel asks, invisible Unicode, tool shadowing, payment injection). Fingerprints every tool (sha256) and diffs vs your last scan to catch silent changes (MCP rug pulls). Returns allow/review/block. Advisory.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://seenly-skill-scan.vercel.app/api/mcp-scan
| Category | Everything else |
|---|---|
| Provider host | seenly-skill-scan.vercel.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-27 | valid payment request | 402 | $0.03 | 507 ms |
Example input (from the provider)
{
"body": {
"baseline": {
"server": "...sha256 from your last scan...",
"tools": {
"get_weather": "...sha256..."
}
},
"url": "https://mcp.example.com/mcp"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"baseline": {
"description": "Optional: the \"fingerprint\" object from an earlier scan, to detect added/removed/changed tools.",
"type": "object"
},
"request_key": {
"type": "string"
},
"tools": {
"description": "Alternative to url: a pasted tools/list result ({\"tools\":[{name, description, inputSchema}]}), e.g. for servers that need auth."
},
"url": {
"description": "Public https Streamable HTTP MCP endpoint. The scan runs initialize + tools/list only; tools are never called.",
"type": "string"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"changes": {
"type": [
"object",
"null"
]
},
"findings": {
"type": "array"
},
"fingerprint": {
"type": "object"
},
"risk": {
"type": "number"
},
"summary": {
"type": "string"
},
"verdict": {
"enum": [
"allow",
"review",
"block"
],
"type": "string"
}
},
"required": [
"verdict",
"risk",
"fingerprint"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}