Get the REAL exported API — functions, classes, constants, interfaces, types — of an npm package at a specific version, extracted from its published TypeScript declarations (.d.ts). Reach for this WHENEVER you're about to call into a library and aren't 100% certain a function/option exists with that exact name and signature. It is the antidote to inventing APIs: if it isn't in this list, the package doesn't export it. Grouped by kind, with one-line signatures.

Return the raw .d.ts declaration text for an npm package@version — the ground-truth type definitions. Use when you need exact signatures, generic parameters, overloads, or option-object shapes that a summary can't capture (e.g. the precise props of a component or the full options of a function). Defaults to the package's types entry; pass file (from list_type_files) to read a specific declaration file.

List every TypeScript declaration (.d.ts) file shipped in an npm package@version. Use when package_api can't find the entry, when a package splits its types across many files, or to locate the declaration for one submodule/export.