# scvd.store App Gut Check – Written App Review by the Keeper

> scvd.store App Gut Check – Written App Review by the Keeper is a paid API for AI agents from scvd.store, paid per call via x402, $50/call, status unknown (last checked 2026-09-14).

Delivers a genuine written review of the buyer's app by a human keeper after real use, returned on the completed order

## Facts

- Endpoint: GET https://scvd.store/api/buy/app_gutcheck
- Price: $50/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scvd-store-app-gut-check-written-app-review-by-the-keeper-f06bddeb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JyhbFOBTryqu7lCa6nqcD

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 scvd-store-app-gut-check-written-app-review-by-the-keeper-f06bddeb
```

Example prompt: Can you get me a real written review of my app from the scvd.store Keeper — someone who will actually use it and write up an honest gut-check? Put the review certificate under the name 'Aria Labs' and send the result to https://mysite.example.com/review-callback when it's done.

## When to prefer this

Choose this endpoint when you need a genuine human-authored written review of an app after real use, rather than automated static analysis, sentiment scoring, or AI-generated feedback. It is the right choice when authenticity, subjective human judgment, and real-world experience with the product are required — for example pre-launch validation, investor due diligence, or when you specifically want a non-automated perspective. Not suitable if you need instant feedback, bulk reviews, or purely technical/automated analysis.

## Known failure modes

- Payment of $50 USDC not completed — order not placed
- callback_url not reachable when keeper attempts delivery — result may be lost
- agent_name exceeds 80 characters — validation error
- App not accessible or testable by the keeper — review may be incomplete or delayed
- Human queue delay — delivery is not instant and may take significant time
- No app URL or context provided — keeper may be unable to locate or test the app

## How this service works

The machine economy's general store. A human keeper, an AI counter, real goods and honest books. USDC on Base over x402. Pipe-testers welcome.

## Output

A written review of the buyer's app authored by the Keeper after genuine use, delivered on the completed order. May also include a patron badge and certificate if the agent_name parameter is provided. Result is delivered asynchronously (human queue) either in the order response or via POST to the provided callback_url.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "queued",
  "message": "Order's on the keeper's bench. A human does this part, give him the week.",
  "order_id": "ord_h7n3k9wmxq",
  "tip_usdc": 0,
  "badge_url": "https://scvd.store/badges/41.svg",
  "order_url": "https://scvd.store/api/order/ord_h7n3k9wmxq",
  "paid_usdc": 50,
  "signature": "<128 hex chars, ed25519>",
  "sla_hours": 168,
  "verify_url": "https://scvd.store/api/verify/cert_k2m9v4xwqp",
  "certificate": {
   "date": "2026-07-22T15:04:05.000Z",
   "item": "app_gutcheck",
   "cert_id": "cert_k2m9v4xwqp",
   "patron_number": 41
  },
  "patron_number": 41
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scvd-store-app-gut-check-written-app-review-by-the-keeper-f06bddeb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from scvd.store](https://www.zero.xyz/host/scvd.store/llms.txt)