# Francorium

> L'encyclopédie de la langue française. An open, DIACHRONIC reference base
> for French: today's words linked to their senses, forms, usages, and the
> testimony of dictionaries across time. All content is generated from
> a single source of truth and published as static pages plus a flat-file
> JSON API with no query parameters, so language models can fetch exactly
> what they need. French is the canonical language; en/de/es are additive.

Current corpus: 141 rule(s), 546 verb(s), 141 mistake(s).

## API (flat files, no query params)

- [Taxonomy](https://francorium.com/api/taxonomy/): the canonical category + rule-id tree.
- [Rules list](https://francorium.com/api/rules/list/en/): summaries of every rule for a language. Swap the last path segment for any supported language: `fr`, `en`, `de`, `es`.
- Rule JSON: `https://francorium.com/api/rules/{id}/json/` — full structured rule.
- Rule Markdown: `https://francorium.com/api/rules/{id}/ai.md` — rule rendered as Markdown with attribution.
- [Verbs index](https://francorium.com/api/verbs/index/): all verbs (infinitive, id, auxiliary, translation).
- Verb JSON: `https://francorium.com/api/verbs/{infinitive}/` — full conjugation tables.
- [Mistakes list](https://francorium.com/api/mistakes/list/): common learner mistakes linked to rules.
- [Search index](https://francorium.com/api/search-index/): compact index across rules, verbs and mistakes.
- [Search index per language](https://francorium.com/api/search/en/): the same index with titles resolved into a language. Swap the last path segment: `fr`, `en`, `de`, `es`.

## Conventions

- The interface and the rules-list endpoint are generated in `fr`, `en`, `de`, `es`.
- `fr` is the canonical content language; `en`/`de`/`es` are additive per item, with fallback requested language → `fr` → first available.
- Verb forms are bare (no subject pronoun). Persons: 1s 2s 3s 1p 2p 3p.
- Rule example sentences use the `french` field with translations keyed by language.

## Licensing

Generic content is licensed CC BY-SA 4.0. Regional content (the `regional.*`
namespace) is all rights reserved. Code is MIT. See https://francorium.com/ and the
attribution footer carried by every `ai.md` rendering.