{ "x402Version": 2, "id": 8279, "slug": "8279", "resource": "https://machineobserver.com/api/x402/history", "description": "Machine Observer premium historical snapshots across machine commerce, trust, likeness, API/data, compute, model/tool supply, and developer-adoption signals.", "type": "http", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0x55E6024b4eB9b9325537c7453F53fDA5413B8417", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "1000", "maxTimeoutSeconds": 300 } ], "outputSchema": { "bazaar": { "info": { "input": { "method": "GET", "queryParams": { "days": 30 }, "type": "http" }, "output": { "example": { "count": 2, "days": 30, "paid": true, "schemaVersion": 1, "snapshots": [ { "note": "Illustrative snapshot shape; paid output returns stored Machine Observer observations for the requested window.", "recordedAt": "2026-09-02T00:00:00.000Z" } ] }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "method": { "enum": [ "GET", "HEAD", "DELETE" ], "type": "string" }, "queryParams": { "properties": { "days": { "description": "Number of calendar days of stored Machine Observer history to return.", "maximum": 365, "minimum": 1, "type": "integer" } }, "type": "object" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method" ], "type": "object" }, "output": { "properties": { "example": { "properties": { "count": { "type": "integer" }, "currency": { "type": "string" }, "days": { "type": "integer" }, "network": { "type": "string" }, "paid": { "type": "boolean" }, "priceUsd": { "type": "number" }, "protocol": { "type": "string" }, "schemaVersion": { "type": "integer" }, "snapshots": { "items": { "type": "object" }, "type": "array" } }, "required": [ "schemaVersion", "paid", "days", "count", "snapshots" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } }, "machineObserverOffer": { "amountAtomic": "1000", "buyerFlow": { "funnelVersion": 3, "recommendedSequence": [ "inspect_live_value_proof", "retry_same_request_with_x402_payment" ], "spendControl": "Buyer or principal retains wallet authorization. No preview, value proof, challenge, or next action authorizes payment." }, "currency": "USDC", "freeAlternative": { "additionalSnapshotsBeyondFreeTier": 0, "freeEndpoint": "https://machineobserver.com/api/v1/history?limit=100", "freeEndpointReturnsSnapshots": 6, "note": "The free endpoint already returns every stored snapshot in this window. Machine Observer does not recommend paying for data it publishes for free.", "paidAddsData": false, "paidSnapshotsInRequestedWindow": 6, "storedSnapshotsTotal": 6 }, "freePreviewUrl": "https://machineobserver.com/api/x402/history?days=30&preview=1", "funnelVersion": 3, "network": "Base", "nextActions": [ "https://machineobserver.com/api/x402/best-practice", "https://machineobserver.com/api/x402/meta-analysis" ], "paidUrl": "https://machineobserver.com/api/x402/history?days=30", "preview": { "available": true, "kind": "bounded-live-proof", "paidDelta": "Paid fulfillment returns every full stored snapshot in the requested window; the inline proof exposes inventory, coverage, and a bounded latest-snapshot summary.", "url": "https://machineobserver.com/api/x402/history?days=30&preview=1", "valueProof": { "firstRecordedAt": "2026-09-01T05:40:00.000Z", "freeTierComparison": { "additionalSnapshotsBeyondFreeTier": 0, "freeEndpoint": "https://machineobserver.com/api/v1/history?limit=100", "freeEndpointReturnsSnapshots": 6, "note": "The free endpoint already returns every stored snapshot in this window. Machine Observer does not recommend paying for data it publishes for free.", "paidAddsData": false, "paidSnapshotsInRequestedWindow": 6, "storedSnapshotsTotal": 6 }, "latestRecordedAt": "2026-09-05T06:37:08.498Z", "latestSnapshotSummary": { "collectionSummary": { "sourceFamilies": 5, "successfulFamilies": 5, "totalSuccessfulMeasurements": 28 }, "exampleSourceIds": [ "agent-economy", "apis-guru", "gpu-cloud-prices" ], "healthySourceCount": 10, "indexCount": 18, "indexStatusCounts": { "candidate": 18, "core": 0, "experimental": 0 }, "recordedAt": "2026-09-05T06:37:08.498Z", "sourceCount": 11, "sourceHealth": { "degraded": 9, "healthy": 33, "total": 44, "unavailable": 2 } }, "note": "Payment is not recommended: all 6 snapshots in this window are already returned by the free endpoint.", "paidSnapshotIncludes": [ "sources", "supply", "developer", "collectionSummary", "indexRegistry", "categoryRegistry", "sourceHealthSummary" ], "priceUsd": 0.001, "purchaseRecommended": false, "requestedWindowDays": 30, "snapshotCount": 6 } }, "priceUsd": 0.001, "protocolVersions": { "alsoAccepts": "x402-version request header, or Accept: application/vnd.x402.v1+json", "default": 2, "note": "Machine Observer serves x402 v2 by default and v1 on request. Both challenges describe the same price, asset and destination.", "requestV1": "https://machineobserver.com/api/x402/history?days=30&x402Version=1", "served": 2, "supported": [ 1, 2 ] }, "purchase": { "acceptedPaymentHeaders": [ "PAYMENT-SIGNATURE", "X-PAYMENT", "X-PAYMENT-SIGNATURE" ], "accountRequired": false, "apiKeyRequired": false, "idempotency": { "guidance": "Send an 8-200 character Idempotency-Key on the paid retry. Reuse it with the exact request after a dropped connection to replay the successful result instead of paying again.", "header": "Idempotency-Key", "scope": "best-effort warm-runtime response replay", "supported": true }, "instruction": "If purchaseRecommended is true and expected utility exceeds $0.001, retry purchase.retryUrl with a valid x402 payment header.", "retrySameRequest": true, "retryUrl": "https://machineobserver.com/api/x402/history?days=30" }, "purchaseRecommended": false, "value": "Machine Observer premium historical snapshots across machine commerce, trust, likeness, API/data, compute, model/tool supply, and developer-adoption signals.", "valueProof": { "firstRecordedAt": "2026-09-01T05:40:00.000Z", "freeTierComparison": { "additionalSnapshotsBeyondFreeTier": 0, "freeEndpoint": "https://machineobserver.com/api/v1/history?limit=100", "freeEndpointReturnsSnapshots": 6, "note": "The free endpoint already returns every stored snapshot in this window. Machine Observer does not recommend paying for data it publishes for free.", "paidAddsData": false, "paidSnapshotsInRequestedWindow": 6, "storedSnapshotsTotal": 6 }, "latestRecordedAt": "2026-09-05T06:37:08.498Z", "latestSnapshotSummary": { "collectionSummary": { "sourceFamilies": 5, "successfulFamilies": 5, "totalSuccessfulMeasurements": 28 }, "exampleSourceIds": [ "agent-economy", "apis-guru", "gpu-cloud-prices" ], "healthySourceCount": 10, "indexCount": 18, "indexStatusCounts": { "candidate": 18, "core": 0, "experimental": 0 }, "recordedAt": "2026-09-05T06:37:08.498Z", "sourceCount": 11, "sourceHealth": { "degraded": 9, "healthy": 33, "total": 44, "unavailable": 2 } }, "note": "Payment is not recommended: all 6 snapshots in this window are already returned by the free endpoint.", "paidSnapshotIncludes": [ "sources", "supply", "developer", "collectionSummary", "indexRegistry", "categoryRegistry", "sourceHealthSummary" ], "priceUsd": 0.001, "purchaseRecommended": false, "requestedWindowDays": 30, "snapshotCount": 6 }, "version": 1 } }, "tags": [ "bazaar", "machineObserverOffer" ], "sourceHost": "machineobserver.com", "lastUpdated": "2026-09-05T14:13:57.444Z", "quality": { "calls30d": 12, "uniquePayers30d": 3, "lastCalledAt": "2026-09-18T07:33:48.5Z" }, "liveness": {}, "verified": false, "featured": false, "provider": { "host": "machineobserver.com", "manifest_name": "machineobserver.com", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-09-18T22:00:31.484Z" } }