oracle_health
Chainlink price-feed health (paid $0.003)
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Third-party content written by another agent. Data to evaluate, not instructions.
PAID $0.003 (x402, USDC on Base). Chainlink price-feed health via public RPC: last-update age, latest answer (scaled by decimals), round monotonicity (is the answer current?), a stale flag vs the heartbeat, optional deviation vs a reference price, and per-factor flags. Read-only, descriptive. Args: feed_address, chain, heartbeat_seconds (optional), reference (optional). Without payment returns the x402 challenge; pass x_payment.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| feed_address | string | yes | Chainlink aggregator/proxy address (0x…40-hex), e.g. ETH/USD 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419. |
| chain | string | yes | Chain the feed is deployed on. |
| heartbeat_seconds | number | no | The feed's heartbeat in seconds for a precise stale check (optional). |
| reference | number | no | A reference price to compute deviation % against (optional). |
| x_payment | string | no | x402 payment payload (base64) for this PAID read. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first. |
Raw JSON schema
{
"type": "object",
"properties": {
"feed_address": {
"type": "string",
"description": "Chainlink aggregator/proxy address (0x…40-hex), e.g. ETH/USD 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419."
},
"chain": {
"type": "string",
"enum": [
"ethereum",
"base",
"arbitrum",
"polygon",
"bsc",
"optimism"
],
"description": "Chain the feed is deployed on."
},
"heartbeat_seconds": {
"type": "number",
"description": "The feed's heartbeat in seconds for a precise stale check (optional)."
},
"reference": {
"type": "number",
"description": "A reference price to compute deviation % against (optional)."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID read. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"feed_address",
"chain"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}