# SSDF Stamps AFR Protocol

> SSDF Stamps AFR Protocol is a paid API for AI agents from www.ssdf.site, paid per call via x402, $42/call, status unknown (last checked 2026-09-15).

Purchases the 'ssdf-stamps-afr-protocol' SKU from SSDF INC's digital store, settling $42 USDC on Base via Coinbase Business and minting a Passport NFT upon successful payment.

## Facts

- Endpoint: GET https://www.ssdf.site/api/x402/ssdf-stamps-afr-protocol
- Price: $42/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ssdf-stamps-afr-protocol-4eda7eb9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gp_lj_f9ZGqZKMxvRVh55

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-stamps-afr-protocol-4eda7eb9
```

Example prompt: Buy me the SSDF AFR Protocol stamp from the SSDF INC store — pay the $42 in USDC and get my Passport minted.

## When to prefer this

Use this endpoint when you specifically need to purchase the SSDF AFR Protocol stamp SKU from SSDF INC's digital store, pay in USDC on Base, and receive a minted Passport ID. This is the only endpoint for this specific SKU and is appropriate for both human-initiated and agent-automated purchases using the x402 payment protocol.

## Known failure modes

- Insufficient USDC balance — payment rejected, ok: false
- Invalid or missing x402 payment header — 402 Payment Required response
- Payment settlement failure on Base network — transaction not confirmed
- SKU unavailable or out of stock — fulfillment not issued
- Network timeout during on-chain settlement

## 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 (boolean success flag), sku (the purchased SKU string 'ssdf-stamps-afr-protocol'), passport (a minted Passport ID), and fulfillment (a URL path token to retrieve the fulfilled digital product).

## 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-stamps-afr-protocol",
  "passport": "{id}",
  "fulfillment": "/api/fulfillment/{token}"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ssdf-stamps-afr-protocol-4eda7eb9/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)