# CYRE Guardian Intent Lockbox

> CYRE Guardian Intent Lockbox is a paid API for AI agents from cyre.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Seals an intentHash pre-payment so any party can later cryptographically prove the hash was committed before settlement occurred.

## Facts

- Endpoint: GET https://cyre.dev/api/lockbox
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cyre-guardian-intent-lockbox-a2c4a7b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FK0oeSSyKZMHepwmndOEQ

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 cyre-guardian-intent-lockbox-a2c4a7b3
```

Example prompt: Before I pay out to this counterparty, lock my intentHash '0xabc123...' as actor '0xMyAddress' in the CYRE Guardian Lockbox so we have a sealed pre-settlement record we can verify later.

## When to prefer this

Use this endpoint when you need a cryptographically verifiable, time-stamped record that an intentHash was committed before a payment or settlement event occurred — particularly in multi-party or disputed transactions where pre-settlement proof matters. Prefer this over on-chain logging when you need low-cost, fast commitment without writing directly to a blockchain. Use before calling Guardian Lockbox Match to verify a subsequent payment against the sealed record.

## Known failure modes

- Missing required 'actor' or 'intentHash' query parameters returns a 400 error
- Invalid intentHash format may be rejected
- Duplicate sealing of the same intentHash/actor combination may return a conflict or idempotency error
- Payment failure (x402) if USDC balance is insufficient or x402 header is missing
- Network timeouts if the lockbox service is temporarily unavailable

## How this service works

Guardian Intent Lockbox — seal your intentHash before you pay so any party can later prove the hash was locked pre-settle. Bearer holds the token. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

## Output

Returns a bearer token representing the sealed lockbox entry, confirming that the provided intentHash was recorded pre-settlement for the given actor. The token can later be presented to prove the hash was locked before payment occurred.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "actor",
      "intentHash"
     ],
     "properties": {
      "actor": {
       "type": "string"
      },
      "intentHash": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cyre-guardian-intent-lockbox-a2c4a7b3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cyre.dev](https://www.zero.xyz/host/cyre.dev/llms.txt)