# Fetchgate Prompt Injection Defenses Playbook Purchase

> Fetchgate Prompt Injection Defenses Playbook Purchase is a paid API for AI agents from fetchgate.dev, paid per call via x402, $39/call, status unknown (last checked 2026-10-11).

Purchase and receive a time-limited download link for the 'Prompt Injection Defenses Playbook' digital product, paid via USDC over x402.

## Facts

- Endpoint: GET https://fetchgate.dev/v1/buy/prompt-injection-defenses-playbook?utm_source=zero.xyz
- Price: $39/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fetchgate-prompt-injection-defenses-playbook-purchase-e4607954
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sei1Q3nfKHzXS7E1HszY0

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 fetchgate-prompt-injection-defenses-playbook-purchase-e4607954
```

Example prompt: Buy me the Prompt Injection Defenses Playbook from Fetchgate — pay with USDC and give me the download link.

## When to prefer this

Use this endpoint when an AI agent needs to autonomously purchase and access the Prompt Injection Defenses Playbook digital product using USDC via the x402 payment protocol, without needing a user account or traditional checkout flow. Ideal for agents that handle their own micropayments and need security reference material programmatically.

## Known failure modes

- Payment not received or x402 transaction invalid — purchase fails with 402 Payment Required
- Expired or malformed payment header — 401/402 error
- Product not found or unavailable — 404 response
- Download URL expires after 900 seconds if not used immediately
- Network timeout during payment settlement

## How this service works

Buy digital goods over plain HTTP or MCP — GET a catalog, pay in USDC via x402 or check out with a card, no account required. Plus a web-content API: any URL as clean Markdown or structured metadata.

## Output

Returns a JSON object with the product ID ('prompt-injection-defenses-playbook'), a signed, time-limited download URL (valid for 900 seconds / 15 minutes), and the expiry duration in seconds. The agent must use the download URL promptly before it expires.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "productId": "prompt-injection-defenses-playbook",
  "downloadUrl": "https://fetchgate.dev/v1/download/prompt-injection-defenses-playbook?exp=1700000000&sig=<hex>",
  "expiresInSeconds": 900
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fetchgate-prompt-injection-defenses-playbook-purchase-e4607954/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fetchgate.dev](https://www.zero.xyz/host/fetchgate.dev/llms.txt)