# 10x402.com Monitor History

> 10x402.com Monitor History is a paid API for AI agents from 10x402.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Returns the full day-by-day historical series of instrument readings and probe results for a given x402 host

## Facts

- Endpoint: POST https://10x402.com/monitor/history
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/10x402-com-monitor-history-aad82584
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7JOhvSb5NlZdi17XdL9-P

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 10x402-com-monitor-history-aad82584 -d '<json body>'
```

Example prompt: Pull up the full monitoring history for socialx402.com — I want to see every day it's been tracked, the instrument readings, and which days it was actually probed.

## When to prefer this

Use this endpoint when you need the full longitudinal record of a host's x402 instrument readings and probe history over time, rather than just its current status. Prefer this over the verdict/latest endpoint when you need trend analysis, dispute evidence, or want to see how a host's compliance posture has evolved day by day.

## Known failure modes

- Missing or invalid host field returns an error — the body must include a valid host string
- Non-existent host with no monitoring history may return an empty series
- Hosts that are bare 0x wallet addresses will have no probe rows in their series
- Malformed JSON body causes a parse error
- Payment failure (insufficient USDC) blocks the request before processing

## How this service works

Every day this wing has held for one host — instrument readings and probes

## Output

A JSON time series containing summary fields (days_held, first_day, last_day, probed_days) and one entry per UTC day, each with instrument readings, probe results, and flags. NULL values indicate no data row exists or the question was never asked; 0 values indicate a real zero or a probe was attempted with no HTTP response received.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "string",
     "maxLength": 262144,
     "description": "a JSON object: { \"host\": \"socialx402.com\" } — the same subject form as /monitor/verdict. A bare 0x… wallet subject holds readings but can never hold probes, so its series carries no probe rows, up to 256 KB"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "const": "POST"
    },
    "bodyType": {
     "type": "string",
     "const": "text"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "format"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "text"
    },
    "format": {
     "type": "string",
     "const": "application/json",
     "description": "a JSON series: days_held, first_day, last_day, probed_days, and one entry per UTC day with instruments, probe and flags. NULL and 0 are different claims throughout: NULL means no row or never asked; 0 means a real zero, or asked with no HTTP answer"
    },
    "example": {
     "type": "string",
     "description": "the sample request body above, actually run through this endpoint — or, when that run is larger than a response header should carry, an object naming its size and the free URL it is published at in full"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/10x402-com-monitor-history-aad82584/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 10x402.com](https://www.zero.xyz/host/10x402.com/llms.txt)