Returns peg deviation (current, 24h and 7d) for the top stablecoins by market cap, plus a 0 to 10 stability score and a risk category, sourced from DeFiLlama and CoinGecko.
Pay from $0.05 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.
ASSESSMENT
updated 5h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 1017ms
- avg response
- 578ms
- total checks
- 47
compliance A (11/11)
11 of 11 x402 conformance checks pass. Full checklist below.
price $0.05 (p75 in Finance)
- price (min)
- $0.05
- category percentile (min)
- p75 in Finance
- endpoints / prices
- 1 / 1
- model
- flat
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
traction $1.53 30d · 2 buyers
- volume 30d
- $1.53
- buyers 30d
- 2
- settlements 30d
- 13
- last settlement
- 2026-07-21
- top buyer share
- 63% of 30d volume
- trend 7d vs 30d
- 0.40x the 30d daily rate
- networks
- eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
Attributed pro-quota: this payout address is shared, so volume and buyers are the operator-level figure divided by the services sharing it. A declared convention, not an individually observed measure, and still a conservative undercount.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedProvides financial market pulse data and risk summaries
- category
- finance
- in
- query params
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| GET | /pulse | $0.05 | Base/Solana | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /pulse returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://stable.lonestaroracle.xyz/pulse'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
"amount": "50000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://stable.lonestaroracle.xyz/pulse",
"tags": [
"stablecoin",
"depeg",
"risk",
"defi",
"base"
],
"iconUrl": "https://lonestaroracle.xyz/lso_logo.svg",
"mimeType": "",
"description": "Top stables ranked by mcap with peg deviation (now/24h/7d) + stability score + risk",
"serviceName": "StablePulse"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
},
"output": {
"type": "object",
"format": "json",
"example": "{\"status\":\"success\",\"data\":{\"stablecoins\":[...],\"summary\":{...}}}"
}
},
"schema": {
"name": "StablePulse - Stablecoin peg monitoring",
"tags": [
"stablecoin",
"depeg",
"risk",
"defi",
"base",
"usdc",
"usdt"
],
"type": "object",
"version": "1.0.0",
"category": "trading",
"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",
"properties": {}
}
}
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {}
}
}
},
"description": "Stablecoin peg deviation (now / 24h max / 7d max) + composite 0-10 stability score + green/yellow/red risk category across the top stables on Base/Ethereum/Solana. For agents, portfolio risk tools, and DeFi services that need a fast, opinionated read on stablecoin safety."
}
},
"bc_kg64bd18": {}
},
"x402Version": 2
}
] UPTIME
RECENT CHECKS
OVER TIME
All charts share the 24h window selected here. Every series is also served as JSON at /api/v1/services/stablepulse/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted).
Shared payout address (45 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 46 services sharing it: a declared convention, not an individually observed measure.
Shared payout address (45 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service buyer count is attributed, the assessment block and the ranking, it is divided pro-quota by the 46 services sharing the address and can be fractional: a declared convention, not an individually observed measure.
COMPLIANCE
11/11 checks pass · grade A- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
EMBED THIS BADGE
<a href="https://x402-list.com/services/stablepulse?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/stablepulse.svg" alt="StablePulse listed on x402-list" height="28"> </a>
[](https://x402-list.com/services/stablepulse?utm_source=badge&utm_medium=referral&utm_campaign=embed)
<a href="https://x402-list.com/services/stablepulse?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/stablepulse.svg?data=uptime" alt="StablePulse uptime on x402-list" height="28"> </a>