# SSDF VDA-5050 Protocol Digital Product Purchase

> SSDF VDA-5050 Protocol Digital Product Purchase is a paid API for AI agents from www.ssdf.site, paid per call via x402, $58/call, status unknown (last checked 2026-09-15).

Purchases the SSDF VDA-5050 Protocol digital SKU for $58 USDC, settling on Base via Coinbase Business and minting a Passport NFT upon successful payment.

## Facts

- Endpoint: GET https://www.ssdf.site/api/x402/ssdf-vda-5050-protocol
- Price: $58/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ssdf-vda-5050-protocol-digital-product-purchase-ccd33703
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XMVjPCJl-BZPQPCdqHfCA

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 ssdf-vda-5050-protocol-digital-product-purchase-ccd33703
```

Example prompt: Buy the SSDF VDA-5050 Protocol from the SSDF digital store — it's $58 USDC settled on Base — and give me the Passport ID and fulfillment link once it goes through.

## When to prefer this

Use this endpoint when an agent or user specifically needs to purchase the SSDF VDA-5050 Protocol SKU from the SSDF digital store, paying in USDC on the Base blockchain via x402 protocol. Prefer this over generic crypto payment rails when you need both the settlement and the Passport mint in a single call. Choose this over other SSDF SKUs when VDA-5050 protocol access is the specific product required.

## Known failure modes

- Insufficient USDC balance — payment rejected, ok returns false
- Network congestion on Base — transaction delayed or timed out
- Invalid or missing payment header — 402 response with no fulfillment
- Passport minting failure — ok may be false or passport field absent
- SKU out of stock or unavailable — fulfillment URL may be invalid

## How this service works

SSDF INC digital store. Priced in USD, settled in USDC on Base through Coinbase Business. Humans and agents buy the same SKU. Every settlement mints a Passport.

## Output

Returns a JSON object with: ok (true if purchase succeeded), sku (the purchased SKU string 'ssdf-vda-5050-protocol'), passport (a minted Passport ID), and fulfillment (a URL path to retrieve the fulfilled digital product, e.g. /api/fulfillment/{token}).

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [],
   "properties": {}
  },
  "output": {
   "type": "object",
   "properties": {
    "ok": {
     "type": "boolean"
    },
    "sku": {
     "type": "string"
    },
    "passport": {
     "type": "string"
    },
    "fulfillment": {
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "properties": {
   "ok": {
    "type": "boolean"
   },
   "sku": {
    "type": "string"
   },
   "passport": {
    "type": "string"
   },
   "fulfillment": {
    "type": "string"
   }
  }
 },
 "example": {
  "ok": true,
  "sku": "ssdf-vda-5050-protocol",
  "passport": "{id}",
  "fulfillment": "/api/fulfillment/{token}"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ssdf-vda-5050-protocol-digital-product-purchase-ccd33703/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.ssdf.site](https://www.zero.xyz/host/www.ssdf.site/llms.txt)