{"uid":"cap_-Vga1NSkOn6Ih2e2f38MI","slug":"httpay-xyz-e8430c73","name":"Stablecoin Peg Monitor (Base Chain)","description":"Monitor stablecoin prices vs peg, 24h supply flows, and depeg alerts on Base. Covers USDC, USDT, DAI, EURC, USDbC. Uses CoinGecko + DeFiLlama.","url":"https://httpay.xyz/api/stablecoin-monitor","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"description":"Monitor stablecoin prices vs peg, 24h supply flows, and depeg alerts on Base. Covers USDC, USDT, DAI, EURC, USDbC. Uses CoinGecko + DeFiLlama."}},"example":{"request":{"chain":"base","stablecoins":["USDC","USDT","DAI"],"time_window_hours":24},"response":{"tip":"Use ?depegThreshold=0.001 for stricter 0.1% monitoring","meta":{"x402":true,"poweredBy":"Alfred Zhang 🫡"},"chain":"Base","sources":["CoinGecko","DeFiLlama Stablecoin API"],"summary":{"onPeg":5,"depegged":0,"depegAlerts":[],"overallHealth":"✅ All stablecoins on-peg","totalMonitored":5},"eurUsdRate":1.1586,"monitoredAt":"2026-06-12T03:52:49.258Z","stablecoins":[{"peg":"1 USD","supply":{"chains":["Manta","ThunderCore","Horizen","BSquared","Superposition","Movement","Corn","BOB","Starknet","Tron","XRPL","CORE","WEMIX3.0","Botanix","ApeChain","Peaq","Evmos","Monad","Milkomeda C1 (Deprecated)","SX Network","Aptos","PulseChain","Edu_chain","Immutable zkEVM","Hedera","Algorand","Loopring","Polygon","MANTRA","DefiChain","Camp 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zkEVM","OKTChain","Hemi","Mantle","Near","Terra Classic","Flare","Plume Mainnet","Elastos","Boba","Nero","Sonic","Syscoin","Solana","ICP","0G","Perennial","Xai","Tempo","Everscale","Polkadot"],"onBase":"$4,250,760,110","flow24h":"+$26,925,954 (+0.64%)","pegMechanism":"fiat-backed","flowDirection":"📈 Inflow","totalCirculating":"$74,917,917,332"},"symbol":"USDC","address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","depegPct":"-0.0264%","change24h":"-0.0059%","marketCap":"$74,891,415,048","pegStatus":"✅ On-peg","volume24h":"$13,240,178,883","priceVsPeg":"0.999736 USD","currentPriceUsd":"$0.999736"},{"peg":"1 USD","supply":{"chains":["Manta","ThunderCore","Movement","Shiden","Corn","Starknet","Tron","CORE","ApeChain","Zilliqa","Peaq","Evmos","SX Network","Monad","Milkomeda C1 (Deprecated)","Aptos","Tezos","PulseChain","Kusama","Immutable 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Mainnet","Boba","NEO","Syscoin","ICP","Solana","0G","Swellchain","Tempo","Polkadot","Everscale"],"onBase":"N/A","flow24h":"N/A","pegMechanism":"fiat-backed","flowDirection":"↔️ Stable","totalCirculating":"$186,648,811,350"},"symbol":"USDT","address":"0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2","depegPct":"-0.1403%","change24h":"-0.0182%","marketCap":"$186,650,525,975","pegStatus":"✅ On-peg","volume24h":"$50,103,596,403","priceVsPeg":"0.998597 USD","currentPriceUsd":"$0.998597"},{"peg":"1 USD","supply":{"chains":["OP Mainnet","Glue","Harmony","ThunderCore","BSC","Astar","Oasis Emerald","Shiden","Avalanche","Starknet","Arbitrum","Aztec","ZKsync Lite","Evmos","Arbitrum Nova","SX Network","Milkomeda C1 (Deprecated)","Rootstock","PulseChain","Moonbeam","ZKsync Era","Aurora","Loopring","Polygon","Unichain","Metis","Scroll","Kava","Moonriver","Mixin","Kaia","Velas","Morph","Osmosis","Ethereum","Gnosis","Cardano","Linea","Taiko","Fantom","Hemi","KCC","Terra Classic","Near","EDU Chain","Boba","Syscoin","Solana","Everscale"],"onBase":"N/A","flow24h":"N/A","pegMechanism":"crypto-backed","flowDirection":"↔️ Stable","totalCirculating":"$4,424,844,511"},"symbol":"DAI","address":"0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb","depegPct":"-0.0075%","change24h":"+0.0125%","marketCap":"$4,212,983,404","pegStatus":"✅ On-peg","volume24h":"$211,837,853","priceVsPeg":"0.999925 USD","currentPriceUsd":"$0.999925"},{"peg":"1 EUR","supply":{"chains":["Base","Ethereum","Cardano","Stellar","Sonic","Avalanche","Polygon","ICP","Solana","Tempo"],"onBase":"N/A","flow24h":"N/A","pegMechanism":"fiat-backed","flowDirection":"↔️ Stable","totalCirculating":"N/A"},"symbol":"EURC","address":"0x60a3e35cc302bfa44cb288bc5a4f316fdb1adb42","depegPct":"+0.1184%","change24h":"+0.1916%","marketCap":"$440,561,987","pegStatus":"✅ On-peg","volume24h":"$43,863,009","priceVsPeg":"1.001184 EUR","currentPriceUsd":"$1.160000"},{"peg":"1 USD","supply":{"chains":[],"onBase":"N/A","flow24h":"N/A","pegMechanism":"unknown","flowDirection":"↔️ Stable","totalCirculating":"N/A"},"symbol":"USDbC","address":"0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA","depegPct":null,"change24h":null,"marketCap":null,"pegStatus":"❓ No price data","volume24h":null,"priceVsPeg":"N/A","currentPriceUsd":"N/A"}],"depegThreshold":"0.50%"}},"exampleRequest":{"chain":"base","stablecoins":["USDC","USDT","DAI"],"time_window_hours":24},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Q2HcbvbzfBy8uLheENxOZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Monitors stablecoin prices vs their peg, 24-hour supply flows, and depeg alerts for USDC, USDT, DAI, EURC, and USDbC on Base using CoinGecko and DeFiLlama data.","exampleAgentPrompt":"Check if any stablecoins are losing their peg on Base right now — I want to see the current prices vs peg, 24-hour supply flows, and any depeg alerts for USDC, USDT, DAI, EURC, and USDbC.","exampleUseCases":null,"resultDescription":"Returns current price vs peg for each covered stablecoin (USDC, USDT, DAI, EURC, USDbC) on Base, 24-hour supply flow changes, and any active depeg alerts including deviation percentages, sourced from CoinGecko and DeFiLlama.","failureModes":["CoinGecko or DeFiLlama API unavailable — stale or missing price/supply data","Stablecoin not supported on Base — missing data for that asset","Payment not processed — 402 response requiring 0.01 USDC via x402 protocol","Network congestion on Base causing delayed on-chain data"],"whenToPreferThis":"Use this endpoint when you need real-time stablecoin peg monitoring specifically on the Base chain, with combined price and supply-flow data from both CoinGecko and DeFiLlama. Prefer this over general crypto price APIs when you specifically need depeg alerts and 24h supply flow context for Base-native stablecoins.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:12:06.550Z","isFirstParty":false}