Stablecoin peg monitor
Stablecoin peg monitor: Chainlink oracle price, deviation from $1 in basis points, a depeg flag (over 1%) and on-chain total supply per chain for USDC, USDT, DAI and USDe across Ethereum, Base, Arbitrum, Optimism and Polygon. Live reads, one Multicall3 per chain. Free sample: https://onchain-health.mick8511.workers.dev/sample
Answeringour last check, 2026-10-26
1 of 1checks answered this week
56 msmedian answer time
$0.003listed price per call
$0.003price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://onchain-health.mick8511.workers.dev/stablecoin-peg
| Category | Market data |
|---|---|
| Provider host | onchain-health.mick8511.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-26 | valid payment request | 402 | $0.003 | 56 ms |
Example input (from the provider)
{
"body": {
"chains": "ethereum,base",
"symbols": "USDC,USDT"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"chains": {
"description": "Comma list of chains (default all 5)",
"type": "string"
},
"symbols": {
"description": "Comma list: USDC,USDT,DAI,USDe (default all)",
"type": "string"
}
},
"required": [],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"queryParams": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}