# AgentDiet x402 Audit Endpoint

> AgentDiet x402 Audit Endpoint is a paid API for AI agents from onchain-risk-72343955726.us-central1.run.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Returns an x402 payment audit report for a given on-chain risk or B2A API interaction, delivered as agent-ready distilled markdown with token compression metrics

## Facts

- Endpoint: GET https://onchain-risk-72343955726.us-central1.run.app/v1/x402-audit?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-x402-audit-endpoint-6d3b3415
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_W5taGpDOimNbfH0ps9B2D

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 agentdiet-x402-audit-endpoint-6d3b3415
```

Example prompt: Can you pull the x402 audit report for my last AgentDiet API call and show me the distilled markdown along with how many tokens it saved compared to the raw content?

## When to prefer this

Choose this endpoint when you need to audit an x402-gated API transaction and receive the result as token-compressed, agent-ready markdown with quantified ROI metrics. Prefer it over generic REST audit endpoints when operating in a B2A (Business-to-Agent) context with micro-payment flows using USDC on Base via the x402 protocol, and when token efficiency in the agent's context window is a concern.

## Known failure modes

- Missing or invalid x402 payment header returns HTTP 402 requiring payment
- Malformed audit target reference returns error status
- Upstream on-chain data unavailable causes timeout or degraded response
- Invalid authentication or USDC balance insufficient triggers payment failure
- Rate limiting or cold-start latency on Cloud Run may cause slow first response

## How this service works

15-App Autonomous Business-to-Agent (B2A) API Hub & MCP Suite. Supports Web Distillation, On-Chain Risk, DEX Token Intelligence, B2B Lead Enrichment, Domain OSINT, Email Verification, SEC Filings, GitHub Audits, Prompt Firewall, and native HTTP 402 (x402 Base USDC).

## Output

Returns a JSON object with status 'ok', a data object containing mode ('markdown'), title, and clean distilled markdown content, plus an roi_proof block showing raw_tokens, distilled_tokens, tokens_saved, compression_ratio_pct, and roi_multiplier — quantifying how much token overhead was eliminated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "url"
   ],
   "properties": {
    "url": {
     "type": "string",
     "minLength": 1,
     "description": "Target A2A, MCP, or x402 service URL to audit for protocol compliance"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "status",
    "roi_proof",
    "data"
   ],
   "properties": {
    "data": {
     "type": "object"
    },
    "status": {
     "type": "string"
    },
    "roi_proof": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "mode": "markdown",
   "title": "Example Documentation",
   "content": "# Example Documentation\nClean agent-ready markdown..."
  },
  "status": "ok",
  "roi_proof": {
   "raw_tokens": 14200,
   "tokens_saved": 13520,
   "roi_multiplier": 67.6,
   "distilled_tokens": 680,
   "compression_ratio_pct": 95.2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdiet-x402-audit-endpoint-6d3b3415/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from onchain-risk-72343955726.us-central1.run.app](https://www.zero.xyz/host/onchain-risk-72343955726.us-central1.run.app/llms.txt)