@tokenlens/core

@tokenlens/core

Core types and fast registry utilities for TokenLens. Build canonical model registries with alias resolution and strong typing.

Install

• npm: npm i @tokenlens/core
• pnpm: pnpm add @tokenlens/core
• yarn: yarn add @tokenlens/core

Exports

• createRegistry(models: Model[]) to build a fast provider+model lookup with alias resolution.
• Types: Model, Provider, Status, Pricing, ContextCaps, usage shapes.

Quick Start

import { createRegistry, type Model } from '@tokenlens/core';

const reg = createRegistry([
  {
    id: 'openai:gpt-4o',
    provider: 'openai',
    status: 'stable',
    context: { combinedMax: 128000 },
    source: 'docs',
  } satisfies Model,
]);

// Resolve shorthands/aliases to the canonical entry
const m = reg.resolveModel('gpt-4o');
console.log(m?.id); // 'openai:gpt-4o'

See also

• @tokenlens/models for a prebuilt models catalog.
• @tokenlens/helpers for context/cost utilities layered on top.

License MIT