# AgentProof Batch URL Check

> AgentProof Batch URL Check is a paid API for AI agents from agentproof.hatchable.site, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-12).

Batch-verifies multiple URLs and returns machine-paid provenance receipts with integrity hashes for autonomous transaction trust.

## Facts

- Endpoint: POST https://agentproof.hatchable.site/api/paid/batch_check_urls?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentproof-batch-url-check-14cc7dec
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7lG8OXWmYfU50ogHmmAoa

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 agentproof-batch-url-check-14cc7dec -d '<json body>'
```

Example prompt: Can you run a batch integrity check on these five URLs — https://example.com/report1, https://example.com/report2, and three others I'll paste — and give me the provenance receipts with SHA-256 hashes so I have an audit trail for this transaction?

## When to prefer this

Choose this endpoint when an autonomous agent needs cryptographic, machine-paid provenance receipts for multiple URLs in a single call rather than checking URLs one at a time. It is particularly suited to compliance, audit, and trust workflows where tamper-evident evidence of what a URL contained at a given moment is required before or after an autonomous transaction.

## Known failure modes

- Invalid or malformed URLs in batch payload — endpoint may reject or skip offending entries
- Payment failure (x402) — call not executed if USDC payment of $0.25 is not settled
- Empty batch or missing URL list — likely returns an error with no receipt generated
- Unreachable URLs at check time — receipt may be issued but integrity check may note unavailability
- Rate limiting or overload on the hatchable.site host — may return 5xx errors

## How this service works

AgentProof publishes Agent Transaction Passport™ and provides machine-paid evidence, provenance receipts, source comparison and change monitoring for autonomous transactions.

## Output

Returns a JSON object confirming success, the tool name ('batch_check_urls'), a receipt object containing a unique UUID and a SHA-256 integrity hash, and the service identifier 'AgentProof'. This receipt serves as a machine-verifiable provenance record for the checked URLs.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "urls": {
   "type": "array",
   "items": {
    "type": "string",
    "format": "uri"
   },
   "maxItems": 25,
   "minItems": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "batch_check_urls",
  "receipt": {
   "id": "uuid",
   "integrity_sha256": "..."
  },
  "service": "AgentProof"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentproof-batch-url-check-14cc7dec/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentproof.hatchable.site](https://www.zero.xyz/host/agentproof.hatchable.site/llms.txt)