{ "x402Version": 2, "discoverable": true, "status": "ready_for_wal", "name": "stablecoin-attestations", "description": "Stablecoin reserve attestations as JSON: reserves, composition, attestor, on-chain supply, ratio.", "category": "data", "tags": [ "stablecoin", "reserves", "attestation", "proof-of-reserves", "defi" ], "resource": { "url": "https://agentwares-stablecoin.vercel.app/v1/reserves/{symbol}", "method": "GET", "type": "http" }, "price": { "amountUsd": "0.05", "asset": "USDC", "network": "eip155:8453" }, "sample_url": "https://agentwares-stablecoin.vercel.app/v1/reserves/USDC?sample=1", "extensions": { "bazaar": { "info": { "input": { "type": "http", "method": "GET", "pathParams": { "symbol": "USDC" }, "queryParams": { "period": "2026-07" } }, "output": { "type": "json", "example": { "issuer": "Circle Internet Financial, LLC", "symbol": "USDC", "name": "USD Coin", "peg": "USD", "backing": "fiat", "as_of": "2026-07-31", "period": "2026-07", "currency": "USD", "total_reserves_usd": 71904101332, "tokens_in_circulation_reported": 71826453410, "composition": [ { "category": "us_treasury_bills", "label": "TOTAL U.S. TREASURY SECURITIES (Circle Reserve Fund)", "amount_usd": 7179080057, "share": 0.099842 }, { "category": "us_treasury_repo", "label": "U.S. Treasury Repurchase Agreements", "amount_usd": 52723000000, "share": 0.733241 }, { "category": "cash_in_fund", "label": "Cash held in Circle Reserve Fund", "amount_usd": 1003971911, "share": 0.013963 }, { "category": "receivables_adjustments", "label": "Cash due to/(owed by) Circle Reserve Fund due to timing and settlement differences, net", "amount_usd": -188805003, "share": -0.002626 }, { "category": "us_treasury_bills", "label": "TOTAL U.S. TREASURY SECURITIES (Other USDC Reserve Assets)", "amount_usd": 499418694, "share": 0.006946 }, { "category": "cash_at_banks", "label": "Cash held at regulated financial institutions", "amount_usd": 10607410596, "share": 0.147522 }, { "category": "receivables_adjustments", "label": "Cash due to/(owed by) Circle due to timing and settlement differences, net", "amount_usd": 80025077, "share": 0.001113 } ], "attestor": "Deloitte & Touche LLP", "attestation_type": "examination", "cadence": "monthly", "source_url": "https://www.circle.com/transparency", "report_url": "https://6778953.fs1.hubspotusercontent-na1.net/hubfs/6778953/USDCAttestationReports/2026/2026%20USDC_Examination%20Report%20July%2026%20(1).pdf", "issued_on": "2026-08-27", "onchain_supply": { "amount": 74699845698, "currency": "USD", "as_of": "2026-09-07T04:13:19.684Z", "source": "defillama", "defillama_id": "2", "price_usd": 0.99985815405514 }, "reserve_ratio": 1.001081, "reserve_ratio_vs_onchain_supply": 0.962574, "confidence": "high", "checks": { "composition_sums_to_total": true, "composition_gap": 0, "reserves_cover_circulation": true }, "history_available": [ "2026-07", "2026-06", "2026-05", "2026-04", "2026-03", "2026-02", "2026-01", "2025-12", "2025-11", "2025-10", "2025-09", "2025-08" ], "sources": [ "https://www.circle.com/transparency", "https://6778953.fs1.hubspotusercontent-na1.net/hubfs/6778953/USDCAttestationReports/2026/2026%20USDC_Examination%20Report%20July%2026%20(1).pdf", "https://defillama.com/stablecoin/2" ], "sample": true, "notice": "Informational only, not financial, investment or legal advice. Figures are parsed from the issuer's own published attestation (see source_url) and DefiLlama's public supply feed; the attestation date (as_of) and the on-chain supply date differ. Verify against the source document before relying on any number. Sample mode: this is the free USDC example; paid calls return the issuer you asked for." } } }, "schema": { "type": "object", "properties": { "input": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "symbol": { "description": "Token symbol, case-insensitive: USDC, USDT, PYUSD, RLUSD, ... (see stablecoin_list_issuers)", "type": "string", "minLength": 1 }, "issuer": { "description": "Issuer name or registry id when the symbol is unknown, e.g. \"circle\" or \"paxos\"", "type": "string", "minLength": 1 }, "period": { "description": "Report month as YYYY-MM. Default: the newest parsed month. See history_available.", "type": "string", "pattern": "^\\d{4}-\\d{2}$" } }, "additionalProperties": false }, "output": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "issuer": { "type": "string" }, "symbol": { "type": "string" }, "name": { "type": "string" }, "peg": { "type": "string" }, "backing": { "type": "string" }, "as_of": { "type": [ "string", "null" ] }, "period": { "type": [ "string", "null" ] }, "currency": { "type": "string" }, "total_reserves_usd": { "type": [ "number", "null" ] }, "tokens_in_circulation_reported": { "type": [ "number", "null" ] }, "composition": { "type": "array", "items": { "type": "object", "properties": { "category": { "type": "string", "enum": [ "cash_at_banks", "cash_in_fund", "us_treasury_bills", "us_treasury_repo", "money_market_fund", "tokenized_fund", "other_government_securities", "commercial_paper", "corporate_bonds", "precious_metals", "bitcoin", "secured_loans", "crypto_collateral", "receivables_adjustments", "other" ] }, "label": { "type": "string" }, "amount_usd": { "type": "number" }, "share": { "type": [ "number", "null" ] } }, "required": [ "category", "label", "amount_usd", "share" ], "additionalProperties": false } }, "attestor": { "type": [ "string", "null" ] }, "attestation_type": { "type": "string" }, "cadence": { "type": "string" }, "source_url": { "type": "string" }, "report_url": { "type": [ "string", "null" ] }, "issued_on": { "type": [ "string", "null" ] }, "onchain_supply": { "anyOf": [ { "type": "object", "properties": { "amount": { "type": "number" }, "currency": { "type": "string" }, "as_of": { "type": "string" }, "source": { "type": "string", "const": "defillama" }, "defillama_id": { "type": "string" }, "price_usd": { "type": [ "number", "null" ] } }, "required": [ "amount", "currency", "as_of", "source", "defillama_id", "price_usd" ], "additionalProperties": false }, { "type": "null" } ] }, "reserve_ratio": { "type": [ "number", "null" ] }, "reserve_ratio_vs_onchain_supply": { "type": [ "number", "null" ] }, "confidence": { "type": "string", "enum": [ "high", "medium", "low", "none" ] }, "checks": { "anyOf": [ { "type": "object", "properties": { "composition_sums_to_total": { "type": "boolean" }, "composition_gap": { "type": "number" }, "reserves_cover_circulation": { "type": [ "boolean", "null" ] } }, "required": [ "composition_sums_to_total", "composition_gap", "reserves_cover_circulation" ], "additionalProperties": false }, { "type": "null" } ] }, "history_available": { "type": "array", "items": { "type": "string" } }, "sources": { "type": "array", "items": { "type": "string" } }, "sample": { "type": "boolean" }, "notice": { "type": "string" } }, "required": [ "issuer", "symbol", "name", "peg", "backing", "as_of", "period", "currency", "total_reserves_usd", "tokens_in_circulation_reported", "composition", "attestor", "attestation_type", "cadence", "source_url", "report_url", "issued_on", "onchain_supply", "reserve_ratio", "reserve_ratio_vs_onchain_supply", "confidence", "checks", "history_available", "sources", "sample", "notice" ], "additionalProperties": false } } } } } }