{"uid":"cap_jPQRdHOi4GZ8rf9KiULmy","slug":"financial-data-x402-stablecoins-endpoint-2e21934d","name":"Financial Data x402 – Stablecoins Endpoint","description":"Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.","url":"https://x402financialdata.com/stablecoins","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"note":"peg_deviation_pct is a large positive number for a few yield-bearing tokenized-treasury instruments classified here as USD-pegged (e.g. USYC, BUIDL) -- that's legitimate NAV growth above $1 from accruing yield, not a depeg. It's a real signal only for pure fiat/crypto-backed stablecoins meant to hold exactly $1 (USDT, USDC, DAI, etc.).","as_of":"2026-08-01","count":2,"stablecoins":[{"name":"Tether","price":0.9990962828003668,"symbol":"USDT","peg_mechanism":"fiat-backed","market_cap_usd":183237992492.2222,"peg_deviation_pct":-0.0904,"market_cap_change_1d_pct":-0.0235,"market_cap_change_7d_pct":-0.5679},{"name":"USD Coin","price":0.9999001788223568,"symbol":"USDC","peg_mechanism":"fiat-backed","market_cap_usd":72069997301.03093,"peg_deviation_pct":-0.01,"market_cap_change_1d_pct":0.0302,"market_cap_change_7d_pct":-2.1372}]}},"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_zbUo2cv6NkqZEXAv4jbyy","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 current prices, peg deviations, market caps, and peg mechanisms for major stablecoins, paid per-call via x402 protocol with USDC.","exampleAgentPrompt":"Pull the latest stablecoin data — I want to see current prices, peg deviations, and market caps for USDT, USDC, and any others tracked, so I can check if anything is depegging right now.","exampleUseCases":[{"title":"Real-time depeg alert monitoring","prompt":"Check the current peg deviation for all major stablecoins and let me know if any of them have deviated more than 0.5% from their $1 peg."},{"title":"DeFi portfolio risk assessment","prompt":"I'm holding significant USDT and USDC in DeFi — can you pull the latest peg deviation and 7-day market cap trend for both so I can gauge if there's any risk right now?"},{"title":"Stablecoin market cap comparison","prompt":"Give me a breakdown of the current market caps for the major stablecoins and how they've changed over the past 7 days — I'm trying to see which ones are gaining or losing dominance."}],"resultDescription":"A JSON object containing a list of stablecoins, each with name, symbol, current price, peg mechanism (e.g. fiat-backed, crypto-backed), market cap in USD, peg deviation percentage, and 1-day and 7-day market cap change percentages. Also includes an as_of timestamp and a count of returned stablecoins. Includes a note clarifying that yield-bearing tokenized treasury instruments may show large positive peg deviations that reflect NAV growth rather than a true depeg.","failureModes":["Payment not received or USDC transaction rejected — endpoint returns HTTP 402 requiring payment","Insufficient USDC balance on Base or Solana — payment fails and data is not returned","Network issues with x402 payment protocol — call may time out before data is returned","Data provider downtime — stale or unavailable stablecoin data may result in error or empty response"],"whenToPreferThis":"Choose this endpoint when you need current stablecoin price, peg health, and market cap data with no API key or subscription setup — ideal for pay-per-call agents that want frictionless access via x402/USDC micropayments. Prefer this over subscription-based stablecoin data providers when usage is sporadic or cost-sensitive, and when operating in a crypto-native agentic context already using the x402 payment rail.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:45:04.678Z","isFirstParty":false}