PASAR API
Open sandbox returns catalogue records as JSON/XML with no key; heavy/production use asks you to email TNA to register your request IP address, and it's still a beta.
View docs ↗ More Data & enrichment APIs# The National Archives ~ Discovery catalogue API is a free portal hosting multiple APIs. # Browse the available endpoints at: # https://discovery.nationalarchives.gov.uk/API/sandbox/index
The National Archives ~ Discovery catalogue API (The National Archives) is a free United Kingdom data portal with multiple APIs. Docs: https://discovery.nationalarchives.gov.uk/API/sandbox/index Source: The National Archives (https://discovery.nationalarchives.gov.uk/API/sandbox/index) Source type: Official portal or provider docs Endpoint type: Portal or multi-endpoint API Integration difficulty: Choose endpoint Last checked: 2026-07-05 Production caveat: Pick the exact endpoint first. Portal datasets can vary by format, parameters, access rules, and coverage. Help me pick the right endpoint for my use case, verify access/format/coverage, and fetch it without assuming every dataset is copy-paste-ready.