{"uid":"cap_-bp6RGm8lZvkGvq6zrtIH","slug":"saylor-innovations-stablecoin-supply-peg-data-2c6f2b92","name":"Saylor Innovations Stablecoin Supply & Peg Data","description":"Stablecoin supply and peg - circulating supply, price, peg deviation, 1d/7d/30d change and top chains for USDT, USDC and 300+ stablecoins","url":"https://saylorinnovations.com/api/defi/stablecoins?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"],"type":"string"},"queryParams":{"type":"object","properties":{"q":{"type":"string","description":"optional name or symbol text, e.g. usdc, dai, ethena"},"limit":{"type":"string","description":"optional 1-50, default 10"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["matched","stablecoins"],"properties":{"query":{"type":["string","null"],"description":"The query as the server interpreted it"},"source":{"type":["string","null"],"description":"Data source the values come from"},"matched":{"type":"number","description":"Number of items that matched the query"},"checked_at":{"type":["string","null"],"description":"Time the check was run (UTC)"},"stablecoins":{"type":"array","items":{"type":"object","properties":{"name":{"type":"string","description":"Name"},"chains":{"description":"Chains covered"},"symbol":{"type":"string","description":"Ticker or asset symbol"},"peg_type":{"description":"Peg type"},"price_usd":{"type":["number","null"],"description":"Price in US dollars"},"top_chains":{"type":"array","items":{"type":"object"},"description":"Top chains"},"circulating":{"type":"number"},"change_1d_pct":{"description":"Change over 1 day, percent"},"change_7d_pct":{"type":["number","null"],"description":"Change over 7 days, percent"},"peg_mechanism":{"description":"Peg mechanism"},"change_30d_pct":{"description":"Change over 30 days, percent"},"peg_deviation_pct":{"type":["number","null"],"description":"Peg deviation, as a percentage"}}}},"total_circulating_shown":{"type":"number","description":"Total circulating shown"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_6IvK2dMOGGW_mDpSrVfnl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns circulating supply, price, peg deviation, and 1d/7d/30d change metrics for USDT, USDC, and 300+ stablecoins across top chains","exampleAgentPrompt":"Can you pull up the current circulating supply, price, and peg deviation for USDC and USDT, and show me how their supply has changed over the last 30 days?","exampleUseCases":[{"title":"Monitor stablecoin depeg risk","prompt":"Check whether USDT or USDC are showing any peg deviation right now, and flag any that have moved more than 0.1% from their peg."},{"title":"Track DAI supply growth","prompt":"Look up DAI's current circulating supply and show me how it's changed over the past 1, 7, and 30 days."},{"title":"Compare top stablecoins by chain","prompt":"Give me a list of the top 10 stablecoins by circulating supply and tell me which chains each one is most active on."}],"resultDescription":"A JSON object containing an array of stablecoin records, each with name, symbol, peg type, peg mechanism, price in USD, circulating supply, peg deviation percentage, 1d/7d/30d percentage changes, and top chains. Also includes total circulating supply shown, query echo, data source, and timestamp.","failureModes":["Query parameter returns zero matches if symbol or name is not recognized","Limit parameter out of range (must be 1-50) may return an error or default","Peg deviation or price fields may be null for less-liquid stablecoins","Data freshness may lag if upstream source is delayed","Payment failure (x402) if USDC balance is insufficient for the $0.01 per-call fee"],"whenToPreferThis":"Choose this endpoint when you need real-time circulating supply, price, and peg health data for stablecoins — especially when you need multi-period change metrics (1d/7d/30d) and chain-level distribution in a single call. Prefer it over generic crypto price APIs when stablecoin-specific fields like peg deviation and peg mechanism are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:48:03.278Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-stablecoin-supply-peg-data-2c6f2b92"}