# School Signals England Snapshot — USDC Purchase via x402

> School Signals England Snapshot — USDC Purchase via x402 is a paid API for AI agents from pay.adamhaleworks.workers.dev, paid per call via x402, $295/call, status unknown (last checked 2026-10-23).

Purchase and instantly download the full England school edtech renewal snapshot dataset (295 USDC) using USDC on Base via x402 payment protocol, with no account required.

## Facts

- Endpoint: GET https://pay.adamhaleworks.workers.dev/x402/v1/school-signals-england-snapshot?utm_source=zero.xyz
- Price: $295/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/school-signals-england-snapshot-usdc-purchase-via-x402-0fc080b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hmA3ZMo0dNR_mos-kX0ds

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 school-signals-england-snapshot-usdc-purchase-via-x402-0fc080b2
```

Example prompt: I need to buy the full England school edtech renewal snapshot from School Signals — can you pay the 295 USDC on Base and get me the download link?

## When to prefer this

Choose this endpoint when you need the full England school edtech renewal dataset in one bulk purchase (295 USDC) and want automatic delivery with no account registration. Prefer this over per-query endpoints when you need comprehensive coverage of all English schools rather than individual school lookups. Best suited for sales intelligence, market research, or policy analysis workflows where the agent can pay with USDC on Base via x402.

## Known failure modes

- Insufficient USDC balance on Base — payment rejected before download is issued
- Expired download URL (links expire after 48 hours) — must re-purchase or re-request
- Invalid or malformed x402 payment header — server returns 402 Payment Required
- Network/worker timeout on Cloudflare Workers edge — retry recommended
- HMAC signature mismatch on download URL if tampered — download denied

## How this service works

Buy UK school edtech renewal data (queries from $0.03, England snapshot 295 USDC) and the DfE AI safety evidence toolkit (149 USDC) with canonical USDC on Base. Automatic delivery, no account.

## Output

Returns a JSON object containing: a signed 48-hour download URL for the England school edtech snapshot ZIP file, an 18-character order ID, the product identifier, the file name, file size, a SHA256 hash for verification, and an order tracking URL. The ZIP can be downloaded immediately after payment confirmation.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "file": {
   "name": "DfE-AI-Safety-Evidence-Toolkit-USDC.zip",
   "bytes": "<size>",
   "sha256": "<published on the guide page>"
  },
  "order": "<18-character order id>",
  "product": "dfe-ai-safety-toolkit",
  "download": {
   "url": "https://pay.adamhaleworks.workers.dev/download/dfe-ai-safety-toolkit?o=<order>&exp=<unix time>&sig=<HMAC>",
   "expires_at": "<48 hours after payment>"
  },
  "order_url": "https://pay.adamhaleworks.workers.dev/orders/<order>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/school-signals-england-snapshot-usdc-purchase-via-x402-0fc080b2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pay.adamhaleworks.workers.dev](https://www.zero.xyz/host/pay.adamhaleworks.workers.dev/llms.txt)