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+# APIs
+
+- [Parsing](#parsing)
+- [Manipulation](#manipulation)
+- [Generation](#generation)
+
+## Parsing
+
+### `GitBook.Parse.parseBook`
+`GitBook.Parse.parseBook(book: Book): Promise<Book>`
+
+Parse the whole book (languages, readme, summary), it returns a complete version of the book instance.
+
+### `GitBook.Parse.parse[Summary|Glossary|Languages]`
+`GitBook.Parse.parse[X](book: Book): Promise<Book>`
+
+Parse a specific part of the book only, it returns a book instance with the updated part.
+
+These methods can be used in combinaison with a file watch to avoid parsing the whole books when a file is modified.
+
+## Manipulation
+
+### `GitBook.SummaryModifier.toText`
+`GitBook.SummaryModifier.toText(summary: Summary, fileExt: String?): String`
+
+Serialize the summary as a string, the argument `fileExt` can be used to specify the parser:
+
+```js
+const textDefault = GitBook.SummaryModifier.toText(summary);
+const textAdoc = GitBook.SummaryModifier.toText(summary, '.adoc');
+const textAdoc = GitBook.SummaryModifier.toText(summary, '.md');
+```
+
+### `GitBook.SummaryModifier.insertArticle`
+`GitBook.SummaryModifier.insertArticle(summary: Summary, article: Article, level: String): Summary`
+
+Insert a summary `article` after the article identified with `level`.
+
+### `GitBook.SummaryModifier.unshiftArticle`
+`GitBook.SummaryModifier.unshiftArticle(summary: Summary, article: Article): Summary`
+
+Insert a summary `article` at the beginning of it.
+
+### `GitBook.SummaryModifier.removeArticle`
+`GitBook.SummaryModifier.removeArticle(summary: Summary, article: Article|String): Summary`
+
+Remove an article from the summary.
+
+## Generation
+
+### `GitBook.Output.getGenerator`
+`GitBook.Output.getGenerator(type: String): Generator`
+
+Return a generator, `type` may be one of `["website", "json", "ebook"]`.
+
+### `GitBook.Output.generate`
+`GitBook.Output.generate(generator: Generator, book: Book): Output`
+
+Generate a book using a generator.