# Parkland Archives – 1900 Sears Catalog Price Summary

> Parkland Archives – 1900 Sears Catalog Price Summary is a paid API for AI agents from history.parklandarchives.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).

Returns aggregated price statistics (average, min, max, record counts) from the 1900 Sears catalog, filterable by product category or keyword search.

## Facts

- Endpoint: GET https://history.parklandarchives.com/api/catalog-prices/summary
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/parkland-archives-1900-sears-catalog-price-summary-dba72d4b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ayhPVZde-fzXO29Mib5oM

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 parkland-archives-1900-sears-catalog-price-summary-dba72d4b
```

Example prompt: Pull up the 1900 Sears catalog price summary from Parkland Archives for the 'books' category — I want to see average, min, and max prices plus total record counts.

## When to prefer this

Choose this endpoint when you need aggregated price statistics across the 1900 Sears catalog — especially for economic history research, inflation analysis, or academic work requiring verified primary-source retail data from turn-of-the-century America. Prefer it over general web search when you need structured, queryable, machine-readable historical pricing data with category breakdowns.

## Known failure modes

- No results returned if search term matches no products — totalRecords will be 0
- Category substring that is too broad or too narrow may return unexpected groupings
- Payment failure via x402 if USDC balance is insufficient — endpoint returns 402 status
- Malformed query parameters may result in 400 Bad Request

## How this service works

Structured historical data from verified primary sources — 1900 Sears catalog prices, World Almanac statistics, and more. Queryable by AI agents via x402 micropayments on Base.

## Output

A JSON object containing overall statistics (average, min, max price in USD, total records, priced records, catalog year) plus a byCategory array where each entry includes the category name, count of items, and average/min/max prices — all derived from the 1900 Sears catalog dataset.

## 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",
     "required": [],
     "properties": {
      "search": {
       "type": "string"
      },
      "category": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "byCategory": [
   {
    "count": 982,
    "category": "books",
    "avgPriceUsd": 0.75,
    "maxPriceUsd": 13.98,
    "minPriceUsd": 0.03
   }
  ],
  "avgPriceUsd": 0.75,
  "catalogYear": 1900,
  "maxPriceUsd": 13.98,
  "minPriceUsd": 0.03,
  "totalRecords": 982,
  "pricedRecords": 978
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/parkland-archives-1900-sears-catalog-price-summary-dba72d4b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from history.parklandarchives.com](https://www.zero.xyz/host/history.parklandarchives.com/llms.txt)