GET /depeg

$0.01 USDC Powered by Chainlink

How far USDC is from $1.00, read from Chainlink’s USDC/USD feed on Arbitrum, plus whether the Arbitrum sequencer was up when the feeds were read.

Request

GET https://api.cerebruspulse.xyz/depeg

No parameters.

Response

Field	Type	Description
`endpoint`	string	`depeg`
`timestamp_iso`	string	When the response was computed (UTC)
`usdc.price_usd`	number	Chainlink USDC/USD price
`usdc.deviation_bps`	number	`abs(price_usd − 1) × 10000`
`usdc.deviation_pct`	number	The same deviation in percent
`usdc.peg_status`	string	`HEALTHY` (< 10 bps), `ELEVATED` (10–50), `WARNING` (50–200) or `CRITICAL` (200 or more)
`usdc.risk_level`	string	`low`, `medium`, `high` or `critical`, matching `peg_status`
`usdc.interpretation`	string	The deviation in words
`infrastructure.arbitrum_sequencer`	string	`up`, `down`, or `unknown` when the check itself failed. While it is not `up`, treat Arbitrum Chainlink prices as possibly stale
`infrastructure.chainlink_feeds_active`	number	Chainlink prices in the snapshot
`meta`	object	Common metadata (Response Schemas)
`meta.offering`	string	`pulse_depeg`
`meta.chainlink_data_age_seconds`	number \| null	Age of the Chainlink snapshot. Above 120 seconds, `meta.warning` is `stale_chainlink_data`
`meta.chainlink_round_age_seconds`	number \| null	Age of the USDC round, when the snapshot records it; null otherwise
`meta.oracle_network`	string	`arbitrum`
`meta.feed_address`	string	The Chainlink USDC/USD feed on Arbitrum

Example

GET /depeg: real engine output on market data captured at 2026-09-24 17:05 UTC. Lists are cut to 3 items. Live responses may also carry meta.disclaimer, which the gateway adds.

{
  "endpoint": "depeg",
  "timestamp_iso": "2026-09-24T17:05:00Z",
  "usdc": {
    "price_usd": 0.99988061,
    "deviation_bps": 1.19,
    "deviation_pct": 0.0119,
    "peg_status": "HEALTHY",
    "risk_level": "low",
    "interpretation": "USDC trading within 10bps of peg — normal conditions"
  },
  "infrastructure": {
    "arbitrum_sequencer": "up",
    "chainlink_feeds_active": 38
  },
  "meta": {
    "provider": "Cerebrus Pulse",
    "offering": "pulse_depeg",
    "execution_ms": 0,
    "chainlink_data_age_seconds": 55.6,
    "chainlink_round_age_seconds": null,
    "oracle_network": "arbitrum",
    "feed_address": "0x50834F3163758fcC1Df9973b6e91f0F0F0434aD3",
    "sources": [
      {
        "name": "Chainlink Data Feeds (Arbitrum One)",
        "url": "https://data.chain.link"
      }
    ]
  }
}

Errors

Status	Reason
400	No Chainlink snapshot yet, or no USDC price in it (the error names the sequencer status); not charged
402	Payment required (the standard x402 flow)
429	Rate limit exceeded
503	Service disabled, payments down, or the Chainlink feed is missing or stale; no price is quoted
504	Engine timeout (not charged)