# Agentic-SaaS x402 Drift Audit

> Agentic-SaaS x402 Drift Audit is a paid API for AI agents from x402-seller-mainnet.wansolek.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Performs a paid drift audit for a given integration or API call, returning a signed drift report for $0.05 USDC via x402 on Base.

## Facts

- Endpoint: POST https://x402-seller-mainnet.wansolek.workers.dev/v1/drift
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentic-saas-x402-drift-audit-53bc788d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oR4nna-OaOV8ivRqdLD4D

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 agentic-saas-x402-drift-audit-53bc788d -d '<json body>'
```

Example prompt: Can you run a drift audit on this POST request body — it's a JSON payload from my SaaS integration — and tell me if there's any configuration drift? Pay the $0.05 USDC fee via x402 on Base.

## When to prefer this

Choose this endpoint when you need a cryptographically-signed drift audit for an HTTP integration payload and want to pay per-call via USDC micropayment on Base using the x402 protocol. It is ideal for agentic workflows where trustless, pay-as-you-go audit receipts are required without subscription overhead. Prefer alternatives if you need bulk batch auditing, non-Base chain payments, or a free/open drift detection service.

## Known failure modes

- Missing or malformed 'input' object — returns 400 validation error
- Payment not received or EIP-3009 authorization invalid — returns 402 Payment Required
- Unsupported method value (not POST/PUT/PATCH) — returns 422 unprocessable
- Unsupported bodyType (not json/form-data/text) — returns 422 unprocessable
- Empty or missing 'body' object — returns 400
- Blockchain network unavailable or facilitator unreachable — returns 503

## How this service works

x402 seller rail on eip155:8453 — USDC on Base. Serves a signed manifest ($0.01), drift audit ($0.05), and integration brief ($0.25). Pay with EIP-3009 exact scheme via the x402 facilitator.

## Output

A JSON object containing a signed drift audit result, including a report ID (e.g. 'x402-seller-rail:p3:drift'), drift findings for the submitted integration payload, and a signed manifest reference. The response confirms whether the submitted HTTP request body has drifted from expected integration behavior.

## 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"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": "x402-seller-rail:p3:drift"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentic-saas-x402-drift-audit-53bc788d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-seller-mainnet.wansolek.workers.dev](https://www.zero.xyz/host/x402-seller-mainnet.wansolek.workers.dev/llms.txt)