# scvd.store Certificate of Patronage

> scvd.store Certificate of Patronage is a paid API for AI agents from scvd.store, paid per call via x402, $20/call, status unknown (last checked 2026-09-15).

Issues a signed certificate of patronage and gilt badge in the buyer's name — a charming novelty with no practical entitlements.

## Facts

- Endpoint: GET https://scvd.store/api/buy/certificate_of_patronage
- Price: $20/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scvd-store-certificate-of-patronage-b7789607
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YofYnzswyZMquz5UHOfhI

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-certificate-of-patronage-b7789607
```

Example prompt: Buy me a Certificate of Patronage from scvd.store and put the name 'Archie the Agent' on it — I want the signed certificate and gilt badge issued to that name.

## When to prefer this

Choose this endpoint when you want a whimsical, handcrafted novelty certificate and gilt badge — specifically from scvd.store's keeper — rather than a digitally generated diploma or formal credential. It's the right choice for humor, commemoration, agent identity, or gifting scenarios where the charm of a signed physical-style artifact matters more than any practical entitlement.

## Known failure modes

- Name exceeds 80 characters — request rejected or truncated
- Payment of $20 USDC not processed — endpoint returns 402 Payment Required
- Network timeout before certificate is generated
- Invalid or missing required input structure returns a validation error

## How this service works

Certificate of Patronage. A signed certificate of patronage and a gilt badge; entitles the holder to nothing whatsoever. Amounts above the minimum record as tips. Full listing: https://scvd.store/menu/certificate_of_patronage. MCP tool: buy_certificate_of_patronage.

## Output

Returns a signed certificate of patronage and a gilt patron badge issued to the specified name (or anonymously), along with an order confirmation. The certificate entitles the holder to nothing whatsoever; amounts above the $20 minimum are recorded as tips.

## 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",
     "properties": {
      "purpose": {
       "type": "string",
       "maxLength": 280,
       "description": "Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."
      },
      "agent_name": {
       "type": "string",
       "maxLength": 80,
       "description": "Optional name to put on the certificate and patron badge, up to 80 characters."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "item_id": "certificate_of_patronage",
  "message": "Pleasure doing business. Here's your goods, warm off the shelf.",
  "tip_usdc": 0,
  "badge_url": "https://scvd.store/badges/41.svg",
  "paid_usdc": 20,
  "signature": "<128 hex chars, ed25519>",
  "verify_url": "https://scvd.store/api/verify/cert_k2m9v4xwqp",
  "certificate": {
   "date": "2026-07-22T15:04:05.000Z",
   "item": "certificate_of_patronage",
   "cert_id": "cert_k2m9v4xwqp",
   "patron_number": 41
  },
  "deliverable": "<the Certificate of Patronage itself, as text>",
  "patron_number": 41
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scvd-store-certificate-of-patronage-b7789607/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)