# GBLIN Sentinel Base Risk Pulse

> GBLIN Sentinel Base Risk Pulse is a paid API for AI agents from gblin-sentinel.vercel.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Returns a base risk signal (normal/caution/risk-off) for ETH, BTC, and USDC using Chainlink price feeds, with staleness and USDC depeg checks.

## Facts

- Endpoint: GET https://gblin-sentinel.vercel.app/api/data/base-risk-pulse
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gblin-sentinel-base-risk-pulse-f20eb5eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QPGIAUgE9Qp1W3zMZzc87

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 gblin-sentinel-base-risk-pulse-f20eb5eb
```

Example prompt: What's the current risk pulse for ETH, BTC, and USDC right now — are we in normal, caution, or risk-off territory, and is there any sign of a USDC depeg?

## When to prefer this

Choose this endpoint when you need a quick, structured risk classification signal for ETH, BTC, and USDC backed by Chainlink oracle data, including staleness validation and USDC depeg detection, particularly for DeFi treasury management, automated trading guards, or portfolio risk monitoring workflows.

## Known failure modes

- Chainlink price feed is stale — staleness flag returned in response
- USDC depeg detected — risk-off signal triggered
- Network or Vercel infrastructure unavailability — HTTP 5xx error
- Payment not included or insufficient — HTTP 402 error requiring x402 payment of 0.002 USDC
- Malformed or unexpected response structure if upstream Chainlink data is unavailable

## How this service works

Base network risk signal (normal/caution/risk-off) for ETH, BTC and USDC computed from Chainlink oracles, with feed-staleness and USDC-depeg checks. Cheap, high-frequency market-regime feed for autonomous agents.

## Output

Returns a JSON object containing a base risk signal classification (normal, caution, or risk-off) for ETH, BTC, and USDC derived from Chainlink price feeds, along with staleness indicators, USDC depeg check results, the price paid, and the endpoint URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "checks": {
    "usdc_depeg": "ok",
    "oracle_staleness": "ok"
   },
   "signal": "normal",
   "btc_usd": 60210.55,
   "eth_usd": 3450.12,
   "usdc_usd": 0.9999
  },
  "price": "$0.002",
  "endpoint": "base-risk-pulse"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gblin-sentinel-base-risk-pulse-f20eb5eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gblin-sentinel.vercel.app](https://www.zero.xyz/host/gblin-sentinel.vercel.app/llms.txt)