# x402 Server Audit

> x402 Server Audit is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).

Audits an x402-enabled server for discovery quality, documentation completeness, pricing surface clarity, and readiness gaps.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/server-audit
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-delx-ai-475b20ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_X4J_nogu4D1wZyVMbvmqw

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 api-delx-ai-475b20ed -d '<json body>'
```

Example prompt: Can you run a full x402 server audit on https://myapi.example.com and tell me where my discovery quality, documentation, and pricing surface fall short?

## When to prefer this

Choose this endpoint when you need to evaluate whether an x402-enabled server is properly configured, discoverable, and ready for agentic use — specifically when you want structured feedback on documentation gaps, pricing transparency, and discovery signals rather than a generic HTTP health check.

## Known failure modes

- Target server is unreachable or returns non-x402 responses — audit cannot proceed
- Server URL not provided or malformed — validation error returned
- Target server has no x402 headers or payment endpoints — audit returns empty or low-confidence findings
- Rate limit or payment failure — 402 or 429 response from audit endpoint itself

## How this service works

Audit an x402 server for listing readiness, discovery quality, pricing surface, OpenAPI coverage, and integration gaps.

## Output

Returns a structured audit report covering discovery quality score, documentation completeness assessment, pricing surface clarity, and a list of specific readiness gaps or improvement recommendations for the audited x402 server.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  },
  "timeout": {
   "type": "integer",
   "maximum": 15,
   "minimum": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "gaps": [],
   "audit_level": "excellent",
   "audit_score": 100
  },
  "tool_name": "util_x402_server_audit"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-delx-ai-475b20ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)