WebCite

Load it

import { createArchive, providers } from "@agntn/archives";

const archive = createArchive(providers.webcite());
const response = await archive.snapshots("example.com");

response.success; // false
response.unsupported; // true
response.unsupportedReason; // "WebCite has no list-by-domain API. …", the library's own words

Why it exists

WebCite stored citations by id and never exposed a way to list captures for a domain; it also stopped accepting new archives around 2019. Existing snapshots are still reachable at webcitation.org/<id> if you know the id.

The provider is in providers.all() anyway, so a merged listing always carries the record under _meta.unsupportedProviders. That is deliberate: an agent asking "which archives could not answer?" gets a name and a reason instead of an absence.

content() answers the same way.

Where it lives

src/providers/webcite.ts, the shortest provider in the tree and the template for what an unsupported answer looks like.