{"uid":"cap_Vp5_Dt6j7fHnzmbs-mBSk","slug":"stablecoin-monitor-api-55b0f2dd","name":"Stablecoin Monitor API","description":"Stablecoin monitor for agents: supply, price and peg deviation for every tracked stablecoin, plus a de-peg alert list. Paid per call via x402 (USDC on Base).","url":"https://stablecoins.x402utils.workers.dev/v1/stablecoin?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","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","required":["symbol"],"properties":{"symbol":{"type":"string","description":"stablecoin symbol"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"matches":[{"price":1,"symbol":"USDC","circulating":75000000000,"deviation_pct":0}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_uYCa7snCukW3iWdtNES6t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time supply, price, and peg deviation data for a queried stablecoin, plus de-peg alert status.","exampleAgentPrompt":"Check the current price, circulating supply, and peg deviation for USDC — I want to know if it's holding its dollar peg right now.","exampleUseCases":[{"title":"Real-time de-peg risk check","prompt":"Is USDT currently de-pegged or showing any unusual deviation from $1? Give me the latest price and peg deviation percentage."},{"title":"Stablecoin supply monitoring","prompt":"What's the current circulating supply of DAI, and is it trading at its expected dollar peg?"},{"title":"DeFi risk alert workflow","prompt":"Check FRAX's price and peg deviation right now — I need to know if it's more than 0.5% off its dollar peg before I execute this trade."}],"resultDescription":"A JSON object with an array of matches, each containing the stablecoin symbol, current price (in USD), circulating supply, and peg deviation percentage. If de-peg alerts exist, they are included in the response.","failureModes":["Unknown or unsupported stablecoin symbol returns empty matches array","Missing required 'symbol' query parameter returns a 400 or validation error","Payment failure via x402 protocol returns 402 Payment Required","Rate limiting or quota exhaustion may return 429 Too Many Requests","Network or upstream data source outage may return 500 or stale data"],"whenToPreferThis":"Choose this endpoint when you need real-time stablecoin-specific data including peg deviation and de-peg alerts, especially in DeFi risk monitoring, automated trading, or compliance workflows. Prefer it over generic crypto price APIs when peg health and circulating supply are required together in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:39:52.001Z","isFirstParty":false,"canonicalSlug":"stablecoin-monitor-api-55b0f2dd"}