# AuctionTrace ES Book Pressure Dataset

> AuctionTrace ES Book Pressure Dataset is a paid API for AI agents from api.auctiontrace.com, paid per call via x402, $5/call, status unknown (last checked 2026-09-14).

Returns a paid-access download link to 751,598 validated E-mini S&P 500 (ES) order book pressure observations with post-entry analysis applications and matched historical comparison code.

## Facts

- Endpoint: GET https://api.auctiontrace.com/api/v1/datasets/auctiontrace-es-book-pressure-20250729-20260630-v1/access/coinbase
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/auctiontrace-es-book-pressure-dataset-fa94c3c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vTUx4cyn9GyT_q8ju2gof

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 auctiontrace-es-book-pressure-dataset-fa94c3c3
```

Example prompt: Can you purchase and download the AuctionTrace ES Book Pressure dataset — the one with 751,598 validated observations and the seven category-specific post-entry applications — so I can run my backtesting analysis against the matched historical baselines?

## When to prefer this

Choose this endpoint when you need a large, validated, pre-packaged dataset of E-mini S&P 500 order book pressure observations for quantitative backtesting, microstructure research, or algorithmic strategy validation. It is ideal when you want matched historical baselines, companion analysis code, and integrity verification (SHA256) in a single $5 purchase. Prefer this over real-time data feeds when offline batch analysis or reproducible research is the goal.

## Known failure modes

- Payment not processed — endpoint returns 402 if x402 payment is not attached or insufficient
- Expired signed URL — artifact URL has a limited validity window, requiring re-call after expiry
- Dataset version mismatch — requesting a non-existent dataset_id version returns 404
- Network timeout — large ZIP artifact download may stall on slow connections
- SHA256 mismatch — local file corruption after download won't match provided checksum

## How this service works

$5 buys 751,598 validated ES Book Pressure observations, seven category-specific post-entry applications, matched historical evidence, and public companion verification, alignment, and matched-comparison code. Published results support relative improvement versus matched baselines, not standalone or guaranteed profitability.

## Output

A signed, time-limited download URL (expires_at) pointing to a ZIP archive containing the ES book pressure dataset, accompanied by a manifest URL, SHA256 checksum for integrity verification, file byte size, and dataset ID. The ZIP contains 751,598 validated ES book pressure observations, seven category-specific post-entry application examples, matched historical evidence, and companion verification, alignment, and matched-comparison code.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "dataset_id",
      "manifest_url",
      "artifact"
     ],
     "properties": {
      "artifact": {
       "type": "object",
       "required": [
        "url",
        "expires_at",
        "content_type",
        "byte_size",
        "sha256"
       ],
       "properties": {
        "url": {
         "type": "string"
        },
        "sha256": {
         "type": "string",
         "pattern": "^[a-f0-9]{64}$"
        },
        "byte_size": {
         "type": "integer",
         "minimum": 1
        },
        "expires_at": {
         "type": "string"
        },
        "content_type": {
         "const": "application/zip"
        }
       }
      },
      "dataset_id": {
       "type": "string"
      },
      "manifest_url": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/auctiontrace-es-book-pressure-dataset-fa94c3c3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.auctiontrace.com](https://www.zero.xyz/host/api.auctiontrace.com/llms.txt)