x402 List

x402 Protocol Service Directory

StablePulse

Finance PAYMENT-READY imported

payment-ready until 2026-08-20

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

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.

first settlement 2026-04-30 · $5.90 all-time · settled via coinbase

BASE URL https://stable.lonestaroracle.xyz ENDPOINTS 1 NETWORK Base / Solana ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

ASSESSMENT

updated 3h ago

Evidence-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
2256ms
avg response
760ms
total checks
2,136

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

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.

domain age
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $1.1869565217 30d · 36 buyers
volume 30d
$1.1869565217
buyers 30d
36
settlements 30d
796
first settlement
2026-04-30
last settlement
2026-08-13
top buyer share
44% of 30d volume
trend 7d vs 30d
1.17x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$5.90
settlements all-time
2,311
median settlement 30d
$0.05
max settlement 30d
$1.00
settled via
coinbase ($54.60, 796 tx)

Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.

Currently sharing this payout address with AeroCheck, AgriPulse, CascadeWatch, ComputePulse, ConsumerPulse, CopperheadAI, CottonmouthAI, CrownBlock, CyclePulse, DeFiRisk, DocEdge, Floyd Coding Agent, FundingRates, GovEdge, GridPulse, IndustrialMetals, LaborPulse, LatAmPulse, LeaseEdge, LoneStarOracle ChainScout, LoneStarOracle ContractCheck, LoneStarOracle EarningsCalendar, LoneStarOracle EquityScope, LoneStarOracle GeoPulse, LoneStarOracle InsiderFlow, LoneStarOracle Liquidations, LoneStarOracle MacroPulse, LoneStarOracle NewsSentiment, LoneStarOracle OptionsFlow, LoneStarOracle PortfolioRisk, LoneStarOracle TokenLaunch, LoneStarOracle TokenScope, LoneStarOracle WealthPulse, LoneStarOracle WeatherOracle, LoneStarOracle WhaleAlert, OpenInterest, RattlerAI, RealEstatePulse, RWA Risk, StakeEdge, StrategicMaterials, SupplyChainPulse, TechAnalysis, TradePulse, WalletRisk.

Top buyer share is a concentration signal, not part of the ranking score.

CHANGES

2 events, detecting since 2026-07-24

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes payout address changed 19d ago (2 since 2026-07-24)

payout address changed · 19d ago

payout added 0xeF2a4B6756895aAf1374640dcFCD4947959442ab

schema changed · 19d ago

schema added GET /pulse exact eip155:4663 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168 2

see all changes for this service

WHAT IT DOES

ai-derived

Provides financial data and risk analysis through pulse and symbol endpoints

category
finance-data
in
query params
financedatarisk-analysismarket-data

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /pulse $0.05 Base/Solana USDC header
1 endpoints

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.

// request
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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
        "extra": {
          "name": "Global Dollar",
          "version": "1"
        },
        "payTo": "0xeF2a4B6756895aAf1374640dcFCD4947959442ab",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:4663",
        "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
  }
]

OVER TIME

All charts use the 7d selector; each series spans only the dates it has data for. 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). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
08-07 · uptime 100.0% · 855ms avg08-08 · uptime 100.0% · 863ms avg08-09 · uptime 100.0% · 669ms avg08-10 · uptime 100.0% · 850ms avg08-11 · uptime 100.0% · 1126ms avg08-12 · uptime 100.0% · 840ms avg08-13 · uptime 100.0% · 843ms avg08-0708-13
7d UPTIME 100%
RESPONSE TIME
08-07 · 855ms avg08-07 · 855ms avg08-08 · 863ms avg08-08 · 863ms avg08-09 · 669ms avg08-09 · 669ms avg08-10 · 850ms avg08-10 · 850ms avg08-11 · 1126ms avg08-11 · 1126ms avg08-12 · 840ms avg08-12 · 840ms avg08-13 · 843ms avg08-13 · 843ms avg08-0708-13
AVG RESP 759ms
PRICE (captured 402, USD)
08-06 · $0.0508-13 · $0.05$0.0508-0608-13
SUB-SCORES (uptime + x402 compliance)
08-06 uptime: 100.0% compliance: 100% checks08-07 uptime: 100.0% compliance: 100% checks08-08 uptime: 100.0% compliance: 100% checks08-09 uptime: 100.0% compliance: 100% checks08-10 uptime: 100.0% compliance: 100% checks08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checksuptimecompliance08-0608-13

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
08-07 · $208-08 · $0.3008-09 · $308-10 · $308-11 · $508-12 · $108-13 · $0.35peak $508-0708-13

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.

DISTINCT BUYERS
08-07 · 2 buyers08-08 · 2 buyers08-09 · 2 buyers08-10 · 4 buyers08-11 · 4 buyers08-12 · 4 buyers08-13 · 3 buyerspeak 4 buyers08-0708-13

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. Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-25 · last up 2026-08-13

  • 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
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 513ms
● OK 561ms
● OK 377ms
● OK 659ms
● OK 506ms
● OK 483ms
● OK 442ms
● OK 805ms
● OK 568ms
● OK 580ms
● OK 652ms
● OK 580ms
● OK 710ms
● OK 919ms
● OK 680ms
● OK 590ms
● OK 710ms
● OK 737ms

EMBED THIS BADGE

Show that StablePulse is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

StablePulse listed on x402-list
status
StablePulse uptime on x402-list
live uptime
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</a>
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// HTML · live uptime variant
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</a>

RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/stablepulse/update.