# CYRE Guardian Intent Exchange Match

> CYRE Guardian Intent Exchange Match 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).

Compares a sealed intent token against a vendor quote (URL, payTo, amount) and returns a fit brief plus recommended next skills

## Facts

- Endpoint: GET https://cyre.dev/api/exchange/match
- 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-exchange-match-065c4b34
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FvQDlmSj_ye6gwcdPLhxW

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-exchange-match-065c4b34
```

Example prompt: Check whether this x402 vendor quote — URL https://vendor.example.com/api/data, payTo 0xABC123, amount 0.005 USDC — actually fits my sealed intent token eyJhbGciOiJFUzI1NiJ9... before I pay.

## When to prefer this

Use this endpoint when an autonomous agent has received a vendor quote for an x402-gated resource and needs to verify it aligns with a previously sealed intent token before committing payment. Prefer this over manual inspection when operating autonomously at scale or when budget/host constraints were encoded in the intent token. Best used as a pre-payment gate in agent payment pipelines on the cyre.dev Guardian system.

## Known failure modes

- Missing intentToken query parameter returns validation error
- Malformed or expired intent token returns token parse failure
- Vendor URL unreachable may result in incomplete fit analysis
- Amount or payTo format mismatch returns schema validation error
- Rate limit exceeded returns 429 with retry guidance

## How this service works

Guardian Intent Exchange match — compare a sealed intent token to a vendor quote (URL, payTo, amount). Returns fit brief + next skills. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

## Output

Returns a fit brief describing how well the vendor quote matches the sealed intent token, along with recommended next skills to call. The response provides patterns and guidance rather than binary verdicts, helping the agent decide whether to proceed with payment.

## 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": [
      "intentToken"
     ],
     "properties": {
      "intentToken": {
       "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-exchange-match-065c4b34/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)