Language reference (live)
140 languages with compare, transfer, and MIT JSON — the deepest, most reliable layer today.
Hand-curated signals
14 AI/dev tools and 7 stack records in JSON — small, manual catalogues you can review.
Preview registries
Models, agents, companies, and benchmarks as catalogue layers — preview snapshots with uneven depth; verify on detail pages.
Agent surface
/api/languages.json— MIT-licensed catalogue (static hosting)GET /v1/transfer?concept=X&from=A&to=B— requires Node server; not on static-only hostsGET /v1/languages/{id}— requires Node server; not on static-only hosts- For AI tools — static JSON + optional MCP
Advisor (experimental)
Client-side Decision Brief drafts for language/stack choices — useful orientation, not authoritative. Verify against official docs.