# SameDayDesk Seller Integrity Audit

> SameDayDesk Seller Integrity Audit is a paid API for AI agents from agents.samedaydesk.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Audits a seller's machine-payment endpoint for protocol compliance, schema validity, and agent-buyability across x402 and MPP payment protocols

## Facts

- Endpoint: GET https://agents.samedaydesk.com/commerce/seller-integrity-audit
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/samedaydesk-seller-integrity-audit-5d7516c0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YsAdkciPk-RtFxpVMWU_h

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 samedaydesk-seller-integrity-audit-5d7516c0
```

Example prompt: Can you run a seller integrity audit on the payment endpoint at agents.samedaydesk.com/commerce/payment-offer-preflight to check whether it's properly set up for agent-buyable x402 and MPP payments and tell me if there are any schema or compliance issues to fix?

## When to prefer this

Use this endpoint when you need a deterministic, non-destructive compliance check of a machine-payment seller API before an agent attempts to purchase from it, when onboarding a new vendor to a machine commerce marketplace, or when debugging why an agent-payment endpoint is being rejected. Prefer this over manual schema inspection because it simultaneously checks x402, MPP, bazaar discoverability, runtime challenge verification, and schema contract in a single structured report without sending any payment or reading sensitive response bodies.

## Known failure modes

- Seller endpoint unreachable — probe.attempted true but valid false
- Schema version mismatch — auditCompleted false with failureCode set
- Missing required response paths — repair plan lists unfulfilled requiredPaths
- bazaar not present — discovery.bazaar.present false blocks listing eligibility
- Runtime challenge not verified — runtimeChallengeVerified false indicating non-conformant seller

## How this service works

Deterministic agent APIs for web and company intelligence, repository security, agent-work economics, machine-service discoverability, payment preflight and settlement proof, wallet context, and Morpho decision evidence. Pay per call through Base x402 or native MPP, with a Circle Gateway Nanopayments path for gasless batched USDC.

## Output

Returns a structured audit report with: overall validity status, a probe result indicating whether the endpoint was reachable, payment economics for both x402 and MPP protocols (atomic amounts), supported protocol list, a repair plan with advisory actions and required vs guaranteed paths, a response contract specifying decision and required paths, runtime challenge verification status, seller library versions, a machine-buyable/inadmissible decision verdict, and a boundary object indicating what data was accessed during the audit.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "origin",
      "route"
     ],
     "properties": {
      "route": {
       "type": "string",
       "pattern": "^/[^/?#{}][^?#{}]*$",
       "description": "Exact paid GET or POST path declared by the seller."
      },
      "method": {
       "enum": [
        "GET",
        "POST"
       ],
       "type": "string",
       "default": "GET",
       "description": "POST is analyzed from OpenAPI without sending a target request."
      },
      "origin": {
       "type": "string",
       "format": "uri",
       "description": "Credential-free public HTTPS seller origin on port 443."
      },
      "referral": {
       "type": "string",
       "pattern": "^r1_[0-9a-f]{64}$",
       "description": "Optional receipt-derived acquisition label. It does not affect payment or delivery."
      },
      "requireBazaar": {
       "type": "boolean",
       "default": false,
       "description": "Whether Bazaar catalog eligibility is a required gate."
      },
      "requiredPaths": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_.-]+(?:,[A-Za-z0-9_.-]+){0,15}$",
       "description": "Optional comma-separated buyer-required dotted success paths."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "ok",
      "product",
      "version",
      "checkedAt",
      "decision",
      "request",
      "report",
      "nextActions",
      "referralOffer",
      "boundary"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "report": {
       "type": "object",
       "required": [
        "auditCompleted",
        "failureCode",
        "schemaVersion",
        "sellerVersions",
        "status",
        "runtimeChallengeVerified",
        "probe",
        "protocols",
        "valid",
        "findings",
        "economics",
        "discovery",
        "resp
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/samedaydesk-seller-integrity-audit-5d7516c0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.samedaydesk.com](https://www.zero.xyz/host/agents.samedaydesk.com/llms.txt)