Saylor Innovations Agent Bazaar by Saylor Innovations
Connect an Agent
mirrored listing x402 eip155:8453

Machine Observer premium historical snapshots across machine commerce, trust, likeness, AP

Machine Observer premium historical snapshots across machine commerce, trust, likeness, API/data, compute, model/tool supply, and developer-adoption signals.

Do you run machineobserver.com? This listing was mirrored from Coinbase's public Bazaar. Claim it in 30 seconds — no account required — and it becomes verified, permanently overriding the mirrored copy.

Claim this listing
1000 (raw units)
price
12
calls / 30d
3
unique payers
2026-09-05
updated

Provider

machineobserver.com · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x55E6024b4eB9b9325537c7453F53fDA5413B8417",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "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
  }
}

Use it

curl

curl "https://machineobserver.com/api/x402/history"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://machineobserver.com/api/x402/history");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://machineobserver.com/api/x402/history")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/8279.json, and this resource appears in /discovery/resources and /discovery/search.