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Saylor Innovations Watchdog — MCP Server Security Scan
x402
Saylor Innovations Watchdog — MCP Server Security Scan is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Scans an MCP server endpoint for security vulnerabilities including tool poisoning, prompt injection, and risky capabilities, returning a verdict and detailed findings
Price / call$0.01
Success—
StatusUnknown
How this service works
MCP Server Security Scan (tool poisoning, prompt injection, risky capabilities). MCP server security scan and trust check before connecting: connects as an MCP client (initialize, tools/list, prompts/list, resources/list) and checks every tool for tool poisoning and prompt injection (hidden <IMPORTANT> instructions, requests to read ~/.ssh or config files, do-not-tell-the-user language, exfiltration), invisible Unicode and data-smuggling parameters; flags risky capabilities (code execution…
Output
Returns a JSON object containing: the scanned URL, a verdict enum (no-issues-found, caution, high-risk, do-not-connect, auth-required, unreachable, not-mcp, not-scanned), a numeric risk score (or null), an array of tools exposed by the server, categorized finding counts, detailed findings with descriptions, human-readable reasons for the verdict, and server metadata.
Example use cases
Vetting a third-party MCP server before use
“Before I connect my agent to that new MCP server at https://partner-tools.com/mcp, can you scan it for security issues like tool poisoning or prompt injection and give me a verdict?”
Automated safety check in an agent onboarding flow
“I'm adding https://community-mcp.io/mcp to my workflow — run a security scan on it and let me know the risk score and any specific findings I should be worried about.”
Red-teaming a self-hosted MCP server
“Can you audit my own MCP server at https://internal.mycompany.com/mcp for risky capabilities or prompt injection vulnerabilities before I let external agents connect to it?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/mcp-scan?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to evaluate the trustworthiness and safety of any MCP server before connecting an AI agent to it, particularly when assessing untrusted, community-contributed, or third-party MCP servers for tool poisoning, prompt injection, or dangerous capability exposure. Prefer this over generic HTTP probing or manual inspection when you need a structured security verdict with categorized findings.
Side effects
- unreachable verdict if the MCP server URL is offline or network-blocked
- not-mcp verdict if the URL does not serve a valid MCP protocol
- auth-required verdict if the server requires authentication before scanning
- not-scanned if the server could not be evaluated for any reason
- malformed URL input causing request failure
- rate-limit or payment failure at $0.01 per call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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