{"uid":"cap_5HhhxAGUQeq_Urn6tOEF7","slug":"council-of-ai-gspc-board-ai-claim-verification-eunomia-data-cde606f7","name":"Council of AI — GSPC Board & AI Claim Verification (eunomia-data)","description":"Explore the current GSPC measurements, see the published change record, verify signed evidence, and access the supported public feeds.","url":"https://councilof.ai/api/eunomia-data","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"kind":"feed","blocks":{"root":{},"signals":{},"card_index":{},"first_fine_watch":{}},"schema":"csoai.eunomia-data/0.2"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_1GT6-b3nNEQ7Ois4YAYz3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches the current GSPC board state and verifies signed AI performance/measurement cards via the Council of AI's Eunomia data feed","exampleAgentPrompt":"Can you check the Council of AI GSPC board for me and verify this signed measurement card I have — I want to know if the AI claim checks out and what the current board signals show?","exampleUseCases":[{"title":"Verify a suspicious AI performance claim","prompt":"I received a signed card claiming an AI system scored highly on GSPC — can you verify it against the Council of AI's Eunomia feed and tell me if it's legitimate or fabricated?"},{"title":"Read current GSPC board state","prompt":"Pull up the latest GSPC board from the Council of AI and show me the current blocks, signals, and card index — I want to see the live state of AI performance rankings."},{"title":"Audit AI measurement integrity","prompt":"I need to confirm that this AI evaluation result wasn't just sold or made up — check it against the Council of AI's signed root and tell me what the Eunomia data says about its legitimacy."}],"resultDescription":"Returns a JSON feed with schema 'csoai.eunomia-data/0.2' containing four block types: root (the public signed root), signals, card_index, and first_fine_watch. Empty cells in the board are returned empty. The response reflects the live GSPC board state and can confirm or deny the validity of a submitted signed card.","failureModes":["Payment not received — x402 payment of 0.02 USDC required per call or request is rejected","Invalid or malformed signed card input — card fails verification and returns empty or error block","GSPC board temporarily unavailable — empty blocks returned with no data","Network timeout or service unavailability — no response or partial feed","Unsupported schema version — client expects different schema than csoai.eunomia-data/0.2"],"whenToPreferThis":"Use this endpoint when you need to verify a specific signed AI measurement card or read the live GSPC board state from the Council of AI's authoritative Eunomia feed. Prefer this over the free CSOAI door endpoint when you need the full data feed including card_index and first_fine_watch entries, not just board totals. Choose this when cryptographic verification of an AI claim or rank is required and you need the complete signed data structure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T12:01:07.418Z","isFirstParty":false}