web-archive
Perma.cc
A permanent-archiving service from the Harvard Library Innovation Lab, designed so links cited in legal and academic writing never rot; it holds millions of permalinks. Each archived page gets a short perma.cc code that replays the capture, and a free public API lets you look existing records up. Most useful when following a Perma link from a court document or paper, or when checking whether a page was preserved as a citation.
Why it’s useful & how it works
Clean public archives API, keyless reads, works both ways. Lookup is by Perma code/URL — best as a 'has this been Perma-archived' check rather than arbitrary-URL lookup.
What’s inside
Millions of permalinks.
API access
Public read https://api.perma.cc/v1/public/archives/ (no key) ; create needs API key. Replay https://perma.cc/ <code>.
Access
Programmatic API access (a key may be required — see the API tag).