# CYRE Guardian Pulse Stream Subscribe

> CYRE Guardian Pulse Stream Subscribe is a paid API for AI agents from cyre.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Seals up to 10 counterparty wallet/address watches into a signed subscription token for streaming risk-event monitoring

## Facts

- Endpoint: GET https://cyre.dev/api/stream/subscribe
- Price: $0.003/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-subscribe-f77519fc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ACEOYj9DoDhHB00LlrnSl

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-subscribe-f77519fc
```

Example prompt: Set up a Guardian Pulse Stream subscription to watch these 5 counterparty addresses for risk events: 0xAAA...111, 0xBBB...222, 0xCCC...333, 0xDDD...444, 0xEEE...555 — I need a signed token I can use to pull events from the stream.

## When to prefer this

Choose this endpoint when you need continuous, streaming risk monitoring for multiple counterparties (up to 10) in a stateless/serverless environment. Unlike one-off scan endpoints (Guardian Bazaar Scan, Pay-route Oracle), this creates a durable signed subscription token that an agent loop can use repeatedly to pull events without re-authenticating. Ideal when your agent needs to watch the same set of addresses over time rather than performing single-shot pre-payment checks.

## Known failure modes

- More than 10 addresses in list — subscription token not issued
- Missing 'list' query parameter — 400 bad request
- Invalid address format in watch list — validation error
- Expired or missing x402 payment — 402 payment required
- Token generation failure — 500 server error

## How this service works

Guardian Pulse Stream — seal up to 10 counterparty watches into a signed subscription token. Pull events via /api/stream/events; fingerprints travel in the token (serverless-safe). Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

## Output

A signed subscription token with counterparty address fingerprints embedded, valid for pulling events via /api/stream/events. The token is serverless-safe (stateless, self-contained) and encodes the watch list of up to 10 addresses. No verdict is returned — the stream delivers behavioral patterns and risk signals for the subscribed addresses.

## 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": [
      "list"
     ],
     "properties": {
      "list": {
       "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-subscribe-f77519fc/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)