# Dayze Day & Date Calculator and Notable Person Search API

> Dayze Day & Date Calculator and Notable Person Search API is a paid API for AI agents from dayze.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Calculates day counts and date differences between two dates, and searches for notable people with life timeline data via the Dayze MCP endpoint.

## Facts

- Endpoint: POST https://dayze.com/api/v1/mcp
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dayze-day-date-calculator-and-notable-person-search-api-71c1c6ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z42e1pOU2HcgkBp33d39p

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 dayze-day-date-calculator-and-notable-person-search-api-71c1c6ca -d '<json body>'
```

Example prompt: Search Dayze for the notable person Taylor Swift and also tell me how many days there are between January 1, 1989 and today.

## When to prefer this

Choose this endpoint when you need to calculate precise day counts or date differences between arbitrary dates, or when you need to search for notable people by name/slug to retrieve their life timeline data. It is particularly well-suited for personal timeline features, age-in-days calculations, and lightweight personal CRM lookups for public figures.

## Known failure modes

- Invalid or malformed date inputs returning an error response
- Unknown notable person slug returning empty results array with total:0
- Missing required 'tool' field causing a bad request error
- Network or payment authorization failure returning no response
- Unsupported tool name causing an unrecognized operation error

## How this service works

Count how many days you have lived, use our free day and date calculator between any two dates, and build your life timeline. Personal CRM on Dayze.

## Output

Returns a JSON object containing the tool name used, the result payload (which may include total count and an array of matching result slugs for person searches, or computed day counts for date calculations), and the API version (v1).

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": "notable_search",
  "result": {
   "total": 1,
   "results": [
    {
     "slug": "taylor-swift"
    }
   ]
  },
  "api_version": "v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dayze-day-date-calculator-and-notable-person-search-api-71c1c6ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dayze.com](https://www.zero.xyz/host/dayze.com/llms.txt)