# CYRE Guardian Pulse Stream Events

> CYRE Guardian Pulse Stream Events is a paid API for AI agents from cyre.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Polls a sealed Pulse Stream subscription token, emits only changed counterparty watch events since the last fingerprint, and returns a rotated subscription token.

## Facts

- Endpoint: GET https://cyre.dev/api/stream/events
- Price: $0.005/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-pulse-stream-events-1a966f78
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JnroiJrQhsj5JmlahEs7V

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-pulse-stream-events-1a966f78
```

Example prompt: Poll my CYRE Guardian Pulse Stream subscription using my token and tell me if any of my watched counterparties have changed since the last check — use a 10-second long-poll wait.

## When to prefer this

Use this endpoint when you have an active sealed Pulse Stream subscription (token in hand) and want to efficiently receive only delta events — changes since your last poll — across up to 10 watched counterparties. Prefer it over re-sealing watches or querying individual counterparties when you want lightweight, continuous monitoring with automatic token rotation for security.

## Known failure modes

- Missing or invalid token query parameter returns an auth/token error
- Expired or already-rotated token returns an invalidation error
- No changes since last fingerprint returns an empty event set with a fresh rotated token
- Network timeout if waitSeconds exceeds server limit
- Malformed input schema (wrong HTTP method or missing required fields) returns a validation error

## How this service works

Guardian Pulse Stream events — evaluate sealed watches, emit only changes vs prior fingerprints, return rotated subscription token. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

## Output

Returns only the watch events that have changed since the prior fingerprint (delta-only delivery), along with a newly rotated subscription token for the next poll. Patterns and signals are returned, not verdicts — the agent interprets the changes.

## 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": [
      "token"
     ],
     "properties": {
      "token": {
       "type": "string"
      },
      "waitSeconds": {
       "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-pulse-stream-events-1a966f78/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)