# ChronicaPulse Business History Search

> ChronicaPulse Business History Search is a paid API for AI agents from chronicapulse.vercel.app, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-15).

Returns historical newspaper coverage of companies, shops, and industries from digitized archives for genealogy and research agents.

## Facts

- Endpoint: GET https://chronicapulse.vercel.app/api/chronica/business
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chronicapulse-business-history-search-104dfca3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WiF4L5BVf7LR62OL95esA

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 chronicapulse-business-history-search-104dfca3
```

Example prompt: Can you search ChronicaPulse's digitized newspaper archives for historical coverage of Wanamaker's department store in Philadelphia from the 1880s through the 1920s — I'm trying to piece together its early business history?

## When to prefer this

Use this endpoint when a user needs historical newspaper-based evidence of a business, shop, company, or industry — especially for genealogy research, family business history, local history projects, or academic research into commercial history. Prefer this over general web search when the goal is primary-source digitized archive coverage rather than modern business data.

## Known failure modes

- No archive records found for the specified business name or time period — returns empty result set
- Business name too generic causing ambiguous matches across unrelated companies
- Requested time period predates available digitized archive coverage
- Invalid or missing required query parameters return a 400 error
- Payment failure via x402 protocol returns 402 Payment Required

## How this service works

Business history research for genealogy and research agents. Returns historical newspaper coverage of companies, shops, and industries from digitized archives.

## Output

A collection of historical newspaper coverage about the specified business or industry, drawn from digitized newspaper archives, including article excerpts, publication names, dates, and contextual narrative about the company's historical presence.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "business"
 ],
 "properties": {
  "era": {
   "type": "string",
   "description": "era"
  },
  "lang": {
   "type": "string",
   "description": "lang"
  },
  "business": {
   "type": "string",
   "description": "business"
  },
  "location": {
   "type": "string",
   "description": "location"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chronicapulse-business-history-search-104dfca3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chronicapulse.vercel.app](https://www.zero.xyz/host/chronicapulse.vercel.app/llms.txt)