{"dataset":{"datasetId":"zfinia-machine-economy-census-v0.1","version":"0.1","title":"zFinia Machine Economy Census v0.1","description":"Scoped evidence dataset of publicly observed x402 Bazaar listings and CDP facilitator-reported paid-call telemetry. Not global machine-economy spend. Not Foundry revenue.","scope":"zFinia Observed x402 Facilitator Census — Coinbase Bazaar index","coverageStart":null,"coverageEnd":null,"lastUpdated":null,"sources":["cdp-x402-bazaar-discovery-resources"],"methodology":"https://api.zfinia.com/v1/market/census","knownLimitations":["Coverage is the Coinbase CDP Bazaar index, not every x402 facilitator or chain.","Reported paid calls are facilitator aggregates, not on-chain hashes.","Implied USDC volume uses listed exact prices × reported calls.","Unique payers cannot be deduplicated across resources and are withheld.","Verified independent economic volume is withheld.","Operator-owned activity is excluded from public market aggregates without publishing identifiers.","Rolling 30-day source window is not a reconstructed daily settlement ledger."],"recordCount":0,"classificationPolicy":{"version":"census-quality-v0.1","failClosedToward":["UNKNOWN","OBSERVED_SETTLEMENT_UNRESOLVED"],"neverInferIndependentFromDistinctAddresses":true,"neverInferTestFromSmallValue":true,"neverInferBotFromHighFrequency":true,"http402IsNotVolume":true,"listingIsNotVolume":true,"toolsListIsNotVolume":true,"foundryLedgerIsNotMarket":true,"definitions":[{"id":"VERIFIED_INDEPENDENT_ECONOMIC","text":"Settlement observed with deterministic positive evidence that the payer is not the operator, not a known test wallet, not affiliated, and not unresolved. v0.1 does not promote any Bazaar quality row to this class."},{"id":"OBSERVED_SETTLEMENT_UNRESOLVED","text":"Official facilitator or on-chain settlement telemetry exists, but independence/test/self cannot be proven for the market row."},{"id":"KNOWN_INTERNAL_OR_SELF","text":"Deterministically matched to operator-owned resources or seller addresses. Counted as excluded from public market aggregates. Identifiers are not published."},{"id":"KNOWN_TEST","text":"Explicit test metadata, known faucet/test infrastructure, or a disclosed test wallet. Small value alone is not sufficient."},{"id":"AUTOMATED_PROBE_OR_NON_SETTLEMENT","text":"Request, 402 challenge, tools/list, listing, or other non-settlement activity."},{"id":"REPORTED_NOT_OBSERVED","text":"A third party claimed a figure that this census did not independently observe."},{"id":"UNKNOWN","text":"Insufficient evidence. Default when a rule does not fire."}]},"correctionPolicy":{"historyIsAppendOnly":true,"reclassificationDoesNotSilentRewrite":true,"materialMetricChangeRequiresAuditMetadata":true},"machineEconomyIndexCalculated":false},"publicationStatus":"WITHHELD","withholdReason":"NO_COMPLETE_SNAPSHOT","metrics":[],"protocols":[{"id":"x402","measurable":true,"role":"v0.1_corpus","settlementEvidence":"facilitator_reported_paid_calls"},{"id":"mcp","measurable":false,"role":"discovery_only","settlementEvidence":false},{"id":"mpp","measurable":false,"role":"evaluated_not_accepted","settlementEvidence":false}],"activity":{"discoveryListings":null,"reportedPaidCalls":null,"http402Challenges":{"includedInSettlementVolume":false,"note":"Foundry 402 challenges are not market volume."},"onChainSettlements":null},"series":[],"sourceRegistry":[{"sourceId":"cdp-x402-bazaar-discovery-resources","name":"Coinbase CDP x402 Bazaar discovery resources","sourceType":"official_protocol_discovery_index","canonicalUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","protocol":"x402","network":"mixed_listed_accepts_base_dominant","whatItMeasures":"Indexed x402 resources plus rolling 30-day facilitator quality telemetry (l30DaysTotalCalls, l30DaysUniquePayers, lastCalledAt). Coinbase documents those quality fields as successful payments through the CDP facilitator, recomputed every six hours. This is not a global machine-economy total and is not an on-chain transfer ledger.","accessMethod":"unauthenticated_https_json_pagination","authority":"official_cdp","coverage":"Resources that remain visible in the CDP Bazaar index. Resources with no 30-day settlement drop out of the catalog. Non-CDP-facilitator x402 activity is not covered.","knownLimitations":["Calls are reported aggregates, not per-transaction hashes.","Unique payers cannot be deduplicated across resources.","Listed exact price times reported calls is an estimate, not observed transfer amounts.","upto-scheme amounts are ceilings.","Dynamic quotes may use last indexed price.","One unique payer is self-test-indistinguishable, not proven test.","Does not include Foundry private ledger activity as market evidence."],"freshnessExpectation":"P1D","enabled":true,"publiclyCitable":true,"rightsNotes":"Public unauthenticated CDP discovery API. Redistribute aggregates and methodology; do not dump full resource bodies by default.","confidence":"medium","measuresSettlement":"facilitator_reported_paid_calls","rejectionReason":null},{"sourceId":"mcp-registry-servers","name":"Official MCP Registry","sourceType":"protocol_registry","canonicalUrl":"https://registry.modelcontextprotocol.io/v0.1/servers","protocol":"mcp","network":"n/a","whatItMeasures":"Published MCP server listings. Discovery only. Not payment settlement.","accessMethod":"unauthenticated_https_json","authority":"official_mcp","coverage":"Servers published to the official registry.","knownLimitations":["Listings are not economic volume.","MCP commerce extensions are not implied."],"freshnessExpectation":"P1D","enabled":false,"publiclyCitable":true,"rightsNotes":"Official public registry. v0.1 does not ingest listings into settlement totals.","confidence":"high","measuresSettlement":false,"rejectionReason":null},{"sourceId":"x402scan-explorer","name":"x402scan (Merit Systems)","sourceType":"third_party_explorer","canonicalUrl":"https://www.x402scan.com","protocol":"x402","network":"eip155:8453","whatItMeasures":"Third-party explorer of x402 resources and claimed transaction volumes.","accessMethod":"html_and_possible_api","authority":"third_party","coverage":"Overlap with CDP Bazaar plus independently registered URLs. High duplicate risk versus the official index.","knownLimitations":["Not the protocol authority.","Duplicate of CDP listings likely.","Supplemental terms restrict treating listings as certification."],"freshnessExpectation":"unknown","enabled":false,"publiclyCitable":false,"rightsNotes":"Merit Systems terms plus x402scan supplement. Not ingested in v0.1.","confidence":"low","measuresSettlement":"claimed_third_party","rejectionReason":"DUPLICATE_RISK_AND_THIRD_PARTY_TERMS"},{"sourceId":"base-usdc-transferwithauthorization","name":"Base USDC EIP-3009 transferWithAuthorization","sourceType":"public_blockchain","canonicalUrl":"https://basescan.org/token/0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","protocol":"x402","network":"eip155:8453","whatItMeasures":"On-chain USDC AuthorizationUsed/Transfer events that can include x402 exact settlements when the transaction sender is a known facilitator.","accessMethod":"public_rpc_or_explorer","authority":"public_chain","coverage":"Would cover facilitator-settled exact USDC on Base if facilitator gating is complete. Requires RPC budget and a maintained facilitator allowlist.","knownLimitations":["Not every USDC transfer is x402.","Facilitator allowlist is incomplete without ongoing maintenance.","Full history backfill is not free."],"freshnessExpectation":"PT1H","enabled":false,"publiclyCitable":false,"rightsNotes":"Public chain data. v0.1 does not run unbounded RPC indexing.","confidence":"high_if_gated","measuresSettlement":"on_chain_candidate","rejectionReason":"RPC_COST_AND_FACILITATOR_GATE_NOT_READY_FOR_V0_1"},{"sourceId":"mpp-directory","name":"MPP public directories (mpp.land / mpp.directory)","sourceType":"protocol_registry","canonicalUrl":"https://mpp.land/services/","protocol":"mpp","network":"mixed","whatItMeasures":"Machine Payments Protocol service listings. Some pages show claimed tx counts and dollar figures that are not independently verified here.","accessMethod":"public_html","authority":"ecosystem_directory","coverage":"MPP-indexed endpoints only. Not x402. Not global machine spend.","knownLimitations":["Settlement figures on third-party recaps are not a zFinia observation.","HTML directories are weaker than an official JSON settlement feed."],"freshnessExpectation":"unknown","enabled":false,"publiclyCitable":false,"rightsNotes":"Public pages exist; v0.1 does not scrape them into financial totals.","confidence":"low","measuresSettlement":false,"rejectionReason":"NO_OFFICIAL_MACHINE_READABLE_SETTLEMENT_FEED_VERIFIED"},{"sourceId":"stripe-mpp-official-stats","name":"Stripe / Tempo MPP official statistics","sourceType":"official_company_statistics","canonicalUrl":"https://mpp.dev/","protocol":"mpp","network":"mixed","whatItMeasures":"Would measure official MPP transaction statistics if Stripe/Tempo publish a citable machine-readable feed.","accessMethod":"none_verified_for_v0_1","authority":"official_if_published","coverage":"unknown","knownLimitations":["No verified public settlement API accepted for v0.1."],"freshnessExpectation":"unknown","enabled":false,"publiclyCitable":false,"rightsNotes":"Do not republish journalist recap numbers as zFinia observations.","confidence":"unknown","measuresSettlement":false,"rejectionReason":"NO_ACCESSIBLE_OFFICIAL_FEED"},{"sourceId":"visa-intelligent-commerce","name":"Visa Intelligent Commerce","sourceType":"official_company_statistics","canonicalUrl":"https://corporate.visa.com","protocol":"visa_intelligent_commerce","network":"card","whatItMeasures":"Card-network agent commerce. No public settlement corpus found for v0.1.","accessMethod":"none","authority":"official_if_published","coverage":"none","knownLimitations":["No public machine-readable settlement feed identified."],"freshnessExpectation":"unknown","enabled":false,"publiclyCitable":false,"rightsNotes":"Do not invent coverage.","confidence":"none","measuresSettlement":false,"rejectionReason":"NO_PUBLIC_SETTLEMENT_CORPUS"},{"sourceId":"foundry-private-ledger","name":"Foundry production ledger","sourceType":"private_operator_ledger","canonicalUrl":"private://foundry/production-ledger","protocol":"x402","network":"eip155:8453","whatItMeasures":"Foundry own settlements, 402 challenges, MCP inbound, and buyer funnel. This is NOT the machine economy.","accessMethod":"private_durable_store","authority":"operator","coverage":"Owned products only.","knownLimitations":["Must never enter public market volume."],"freshnessExpectation":"PT1M","enabled":false,"publiclyCitable":false,"rightsNotes":"PRIVATE. May be used only to exclude known internal activity from public aggregates.","confidence":"high","measuresSettlement":"operator_own","rejectionReason":"PRIVATE_OPERATOR_LEDGER_IS_NOT_THE_MARKET"}],"sourceHealth":[]}