# On This Day – Historical Events, Births & Deaths

> On This Day – Historical Events, Births & Deaths is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns historical events, births, and deaths that occurred on a given calendar date (MM/DD), sourced from Wikipedia.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/on-this-day
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/on-this-day-historical-events-births-deaths-33cce0b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L0SEZExmYUnIEKpHAfTTs

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 on-this-day-historical-events-births-deaths-33cce0b3 -d '<json body>'
```

Example prompt: What historically happened on July 4th — give me notable events, famous births, and deaths from Wikipedia's on-this-day data for 07/04.

## When to prefer this

Use this endpoint when you need structured, Wikipedia-sourced historical facts, births, and deaths for a specific calendar date. Ideal for trivia apps, daily history digests, or enriching content with historical context for a given day of the year.

## Known failure modes

- Invalid date format (not MM/DD) returns an error
- Date with no Wikipedia on-this-day data may return empty lists
- Missing ?date parameter defaults to today's date
- Payment failure (x402) prevents access to the endpoint

## How this service works

MEDIA: historical events, births & deaths on a date (?date=MM/DD, defaults today) from Wikipedia. Returns JSON.

## Output

A JSON object containing lists of historical events, notable births, and notable deaths that occurred on the specified calendar date, sourced from Wikipedia.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/on-this-day-historical-events-births-deaths-33cce0b3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)