{"uid":"cap_cdquKr11UO3glfuQm9oSz","slug":"council-of-ai-ras-usdc-token-supply-lookup-41b9ecb6","name":"Council of AI — RAS USDC Token Supply Lookup","description":"We measure how AI systems behave against frozen, published tests and publish checkable evidence. Issued measurement cards are signed; unsigned supporting runs are labelled. Read the live board and corrections ledger.","url":"https://councilof.ai/api/ras/supply?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":["asset","ledger"],"properties":{"asset":{"enum":["USDC"],"type":"string","description":"asset whose issuer publishes a deployment list the reader parses"},"ledger":{"enum":["ethereum","arbitrum","avalanche","base","celo","hyperevm","linea","optimism","polygon","sonic","unichain","zksync"],"type":"string","description":"EVM ledger named on the issuer's list"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"kind":"receipt","result":{"kind":"csoai.ras.supply-read/0.1","proof":{"account_proof_verified":true,"storage_proof_verified":true},"height":{"number":"<int>","state_root":"<0x…>"},"supply":{"decimals":6,"base_units":"<int>"},"evidence_kind":"STATE_PROOF_VERIFIED | OPERATOR_API | REJECTED"},"schema":"csoai.ras.supply/0.1","receipt":{"sha256":"<hex>","sig_ed25519":"<hex or null>"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_uQxzWVIETk9fS6XnJ3ZW_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches the on-chain USDC token supply for a specified EVM ledger with cryptographically signed, state-proof-verified evidence","exampleAgentPrompt":"Can you get me the current verified USDC supply on Base, with a signed state-proof receipt I can independently verify?","exampleUseCases":[{"title":"Auditing USDC supply on Arbitrum","prompt":"Fetch me the cryptographically signed, state-proof-verified USDC supply on Arbitrum — I need the base units and proof status for an audit report."},{"title":"Monitoring stablecoin backing across chains","prompt":"What is the current on-chain USDC supply on Polygon, verified with account and storage proofs? I want a signed receipt so I can independently checksum it later."},{"title":"Cross-chain USDC supply snapshot for research","prompt":"I'm doing stablecoin research — can you pull the verified USDC supply on Optimism and tell me whether it was confirmed via state proof or operator API?"}],"resultDescription":"Returns a JSON object containing: the kind of measurement (csoai.ras.supply-read/0.1), proof verification flags (account_proof_verified, storage_proof_verified), the block height and state root at which the measurement was taken, the USDC supply in base units with decimal precision, the evidence kind (STATE_PROOF_VERIFIED, OPERATOR_API, or REJECTED), and a signed receipt with SHA-256 hash and optional Ed25519 signature for independent verification.","failureModes":["Unsupported ledger value returns an enum validation error","Unsupported asset value (non-USDC) rejected at schema level","Evidence kind returned as REJECTED if on-chain proof cannot be verified","Missing required query parameters (asset or ledger) cause request failure","Network or RPC issues on the target chain may cause stale or unavailable data","Ed25519 signature field may be null for unsigned supporting runs"],"whenToPreferThis":"Choose this endpoint when you need an independently verifiable, cryptographically signed snapshot of USDC token supply on a specific EVM chain. It is superior to generic blockchain RPC calls because it provides state-proof verification, a signed receipt, and an auditable evidence classification — making it suitable for compliance, auditing, or trust-sensitive financial monitoring workflows. Prefer this over unattested oracle or operator-API data sources when proof integrity matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:33:25.720Z","isFirstParty":false,"canonicalSlug":"council-of-ai-ras-usdc-token-supply-lookup-41b9ecb6"}