# MCP Server Quality & Security Audit

> MCP Server Quality & Security Audit is a paid API for AI agents from mcp-server-quality-corpus.mtree.workers.dev, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Returns a machine-readable quality and security audit report for a given MCP server, with provenance and route-specific evidence.

## Facts

- Endpoint: POST https://mcp-server-quality-corpus.mtree.workers.dev/v1/mcp/server_quality_report
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mcp-server-quality-security-audit-4630a8d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K4TvfsSZyZ0KCCa4HGDSK

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability mcp-server-quality-security-audit-4630a8d4 -d '<json body>'
```

Example prompt: Run a quality and security audit on the MCP server at https://example-mcp.workers.dev and give me the machine-readable report with provenance and any route-specific findings.

## When to prefer this

Use this endpoint when an AI agent or developer needs an objective, machine-readable quality and security audit of a specific MCP server before integrating or trusting it, especially when provenance and route-level evidence are required. Prefer this over manual inspection or generic web searches when you need structured, actionable audit data with a trust score.

## Known failure modes

- Invalid or unreachable MCP server URL returns an error
- Payment not completed (x402 payment required, 0.15 USDC on Base) results in 402 response
- Malformed request body returns validation error
- Unknown or unindexed server may return empty evidence or low-confidence results

## How this service works

Paid MCP server quality and security audit route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.15 USDC on Base via x402. Demo/preview: https://mcp-server-quality-corpus.mtree.workers.dev/demo/server_quality_report. Contact: https://mcp-server-quality-corpus.mtree.workers.dev/contact.

## Output

A JSON object containing a quality/security audit report for the specified MCP server, including provenance metadata, route-specific evidence, a quality score, and machine-readable fields indicating security posture and trustworthiness.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {
      "server_url": {
       "type": "string"
      },
      "server_name": {
       "type": "string"
      }
     },
     "additionalProperties": true
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mcp-server-quality-security-audit-4630a8d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-server-quality-corpus.mtree.workers.dev](https://www.zero.xyz/host/mcp-server-quality-corpus.mtree.workers.dev/llms.txt)