{"schema_version":"1.0","request_id":"98adad56-888d-4d3c-989f-a88a7e646d9f","product":"stablecoin-supply","status":"completed","data":{"fetched_at":"2026-08-19T17:21:24.693Z","block":25790613,"supply":{"USDC":{"symbol":"USDC","available":true,"supply":49780115277,"delta24h":172752415,"pct24h":0.35,"onchain":true},"USDT":{"symbol":"USDT","available":true,"supply":90306400739,"delta24h":null,"pct24h":null,"onchain":true},"DAI":{"symbol":"DAI","available":true,"supply":4577451754,"delta24h":35920142,"pct24h":0.79,"onchain":true},"USDE":{"symbol":"USDE","available":true,"supply":4074359473,"delta24h":null,"pct24h":null,"onchain":true},"SDAI":{"symbol":"SDAI","available":true,"supply":141358670,"delta24h":-26239,"pct24h":-0.02,"onchain":true},"BUIDL":{"symbol":"BUIDL","available":true,"supply":225142355,"delta24h":19694,"pct24h":0.01,"onchain":true}},"unavailable":[],"_trial":{"used":1,"remaining":4,"limit":5,"price_usd":0.02,"continue_hint":"Pay per call via PAYMENT-SIGNATURE (see the 402 manifest), or buy a prepaid starter key: POST /v1/keys/starter ($0.01 -> $0.05 credit)."},"_suggested_actions":[],"_next_recommended_tool":null,"_next_payment_step":{"session":"POST /v1/session (pay $0.05 once -> x-session token, then poll — debits per call, no signing)","prepaid":"POST /v1/keys/starter (pay $0.01 once -> $0.05 credit, then x-api-key — no per-call signing)","networks":8,"entry":"base-gas-oracle $0.001","docs":"/x402-pay.md"}},"provenance":[{"provider":"Ethereum mainnet JSON-RPC","source_id":"ethereum-mainnet-totalSupply"}],"freshness":{"status":"fresh_at_fetch","fetched_at":"2026-08-19T17:21:27.013Z","max_age_seconds":120},"confidence":"high_for_returned_onchain_reads","limitations":["Ethereum mainnet only; this is token contract supply, not a cross-chain aggregate.","The 24h delta uses an approximately 7,200-block historical result; it is not a transaction-level flow ledger.","Unavailable RPC reads are returned explicitly and missing values are not inferred."],"usage":{"entitlement":"configured_placeholder","cost_usd":null,"pricing_status":"placeholder_not_production_x402","query":{"symbol":null,"chain":"ethereum-mainnet","limit":6}}}