# Machine Observer Historical Snapshots

> Machine Observer Historical Snapshots is a paid API for AI agents from machineobserver.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Retrieves premium historical snapshots of machine commerce, trust, compute, model/tool supply, and developer-adoption signals over a configurable number of days.

## Facts

- Endpoint: GET https://machineobserver.com/api/x402/history
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/machine-observer-historical-snapshots-c56f82b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kMmlju_nMphiuD_KU5_Zi

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability machine-observer-historical-snapshots-c56f82b5
```

Example prompt: Pull the last 30 days of Machine Observer historical snapshots covering machine commerce, compute, and developer-adoption signals so I can analyze recent trends.

## When to prefer this

Use this endpoint when you need structured historical time-series snapshots of the machine economy — including commerce, compute, trust, and developer adoption — specifically from Machine Observer, which curates these signals as a premium paid dataset. Prefer this over general web scraping or generic market data APIs when you need machine-readable, pre-structured signal history with a well-defined schema.

## Known failure modes

- Invalid 'days' value outside 1-365 range returns a validation error
- Missing or invalid x402 payment header returns a 402 Payment Required response
- Network timeout on large snapshot ranges
- Empty snapshots array if no data is available for the requested period
- Schema version mismatch if client expects a newer format

## How this service works

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

## Output

A JSON object containing a schema version, a boolean indicating paid access, the number of days requested, a count of returned snapshots, and an array of historical snapshot records covering machine commerce, trust, likeness, API/data, compute, model/tool supply, and developer-adoption signals.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ]
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "integer",
       "minimum": 1,
       "maximum": 365,
       "description": "Number of calendar days of stored Machine Observer history to return."
      }
     }
    }
   },
   "required": [
    "type",
    "method"
   ],
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "schemaVersion": {
       "type": "integer"
      },
      "paid": {
       "type": "boolean"
      },
      "protocol": {
       "type": "string"
      },
      "priceUsd": {
       "type": "number"
      },
      "currency": {
       "type": "string"
      },
      "network": {
       "type": "string"
      },
      "days": {
       "type": "integer"
      },
      "count": {
       "type": "integer"
      },
      "snapshots": {
       "type": "array",
       "items": {
        "type": "object"
       }
      }
     },
     "required": [
      "schemaVersion",
      "paid",
      "days",
      "count",
      "snapshots"
     ]
    }
   },
   "required": [
    "type"
   ]
  }
 },
 "required": [
  "input"
 ]
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "days": 30,
  "paid": true,
  "count": 2,
  "snapshots": [],
  "schemaVersion": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/machine-observer-historical-snapshots-c56f82b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from machineobserver.com](https://www.zero.xyz/host/machineobserver.com/llms.txt)