# Wayback Machine on Onekey

> 3 endpoints for Wayback Machine (3 stable, 0 beta), 1 to 5 credits each. Category: Web tools. One key, one JSON shape.

Base URL: https://api.onekey.dev
Auth: header `x-api-key: <key>`. Call shape: `GET /v1/{platform}/{endpoint}?{params}`.
Every response is `{success, data, metadata, error}`; check `success` first. Cost is in `metadata.credits_charged`. Free when served from cache (0.2 credit for a cached response over 100 KB). Failed and not-found calls are refunded.
Status: stable = verified against the live source; beta = not yet verified, fields may be missing.

Page: https://onekey.dev/platforms/wayback
Reference (Markdown): https://onekey.dev/docs/api/wayback.md
All docs: https://onekey.dev/llms.txt

## Canonical fields returned

Unified-schema fields (same names on every platform), with how many of the 3 mapped Wayback Machine endpoints return each:

- `entity.createdAt` (ISO 8601 date): 3
- `entity.url` (URL): 3
- `listing.available` (boolean): 2
- plus 4 platform-specific fields under `ext.`

## Endpoints

### wayback.available

Most recent Wayback Machine snapshot of a URL.
- Price: 1 credit per fresh call. Status: stable. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/wayback/available?url=example.com` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `url` (string, required): URL to look up (scheme optional)
- Fields returned: `entity.url`, `entity.createdAt`, `listing.available`, `ext.httpStatus`
- Reference: https://onekey.dev/docs/api/wayback/available.md

### wayback.closest

Wayback Machine snapshot closest to a given date.
- Price: 1 credit per fresh call. Status: stable. Returns: one record.
- Request: `GET https://api.onekey.dev/v1/wayback/closest?url=example.com&timestamp=20200101` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `url` (string, required): URL to look up (scheme optional)
  - `timestamp` (string, required): Target date YYYYMMDD or YYYYMMDDhhmmss
- Fields returned: `entity.url`, `entity.createdAt`, `listing.available`, `ext.httpStatus`
- Reference: https://onekey.dev/docs/api/wayback/closest.md

### wayback.snapshots

Wayback Machine CDX index: successful captures of a URL (one per day, newest 25).
- Price: 5 credits per fresh call. Status: stable. Returns: a list.
- Request: `GET https://api.onekey.dev/v1/wayback/snapshots?url=example.com` with header `x-api-key: YOUR_API_KEY`
- Parameters:
  - `url` (string, required): URL to look up (scheme optional)
- Fields returned: `entity.createdAt`, `entity.url`, `ext.mimeType`, `ext.httpStatus`, `ext.digest`, `ext.length`
- Reference: https://onekey.dev/docs/api/wayback/snapshots.md

## Sample request

```bash
curl "https://api.onekey.dev/v1/wayback/available?url=example.com" \
  -H "x-api-key: YOUR_API_KEY"
```