# Lilambd Calendar Days Lookup

> Lilambd Calendar Days Lookup is a paid API for AI agents from api.lilambd.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-04).

Returns a list of calendar dates with equivalents in multiple calendar systems (Gregorian, Hebrew, Chinese, Persian, Hijri)

## Facts

- Endpoint: GET https://api.lilambd.com/calendars/days?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lilambd-calendar-days-lookup-0278c99a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5bwCvTDzhcsu-8RxZeqS4

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 lilambd-calendar-days-lookup-0278c99a
```

Example prompt: What is today's date in the Hebrew, Chinese, Persian, and Hijri calendars? Give me the first 20 results starting from today.

## When to prefer this

Use this endpoint when you need to look up or convert a date across multiple calendar systems simultaneously — especially Hebrew, Chinese, Persian, and Islamic Hijri — in a single call. Prefer it over building your own calendar math when you need authoritative Unicode CLDR-backed results for multi-cultural or interfaith date coordination.

## Known failure modes

- Invalid date format returns an error or empty results
- Out-of-range dates may not be supported by all calendar systems
- Missing required query parameters may return an empty data array
- Rate limiting or payment failure (402) if USDC micropayment is not processed correctly

## How this service works

A crossing for play, feeling, language, science and computation — creating states that do not have names yet.

## Output

A JSON object containing an array of date records, each with Gregorian, Hebrew, Chinese, Persian, and Hijri Umm al-Qura equivalents, plus a count, limit, offset for pagination, and an attribution field crediting Unicode CLDR 49.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  },
  "additionalProperties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [
   {
    "date": "2026-02-16",
    "hebrew": "5786-11-29",
    "chinese": "2025-12-29",
    "persian": "1404-11-27",
    "hijri_umalqura": "1447-08-28"
   }
  ],
  "count": 1,
  "limit": 20,
  "offset": 0,
  "attribution": "Unicode CLDR 49 ..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lilambd-calendar-days-lookup-0278c99a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.lilambd.com](https://www.zero.xyz/host/api.lilambd.com/llms.txt)