| \n\n### `ofetchBuilder`\n\n```ts\nimport { createClient, ofetchBuilder } from 'apiful'\n\nconst baseURL = 'https://api.example.com'\nconst adapter = ofetchBuilder()\nconst api = createClient({ baseURL }).with(adapter)\n\n// GET request to | \n\n**What it does:**\n\nThe `ofetchBuilder` wraps [ofetch](https://github.com/unjs/ofetch) to handle API requests.\n\n |
| \n\n### `apiRouterBuilder`\n\n```ts\nimport { apiRouterBuilder, createClient } from 'apiful'\n\nconst baseURL = 'https://api.example.com'\nconst adapter = apiRouterBuilder()\nconst api = createClient({ baseURL }).with(adapter)\n\n// GET request to | \n\n**What it does:**\n\nThe `apiRouterBuilder` provides a jQuery-like and Axios-style API for building and making API requests. It allows you to construct your API calls in a declarative way.\n\n |
| \n\n### `OpenAPIBuilder`\n\n```ts\nimport { createClient, OpenAPIBuilder } from 'apiful'\n\nconst baseURL = 'https://petstore3.swagger.io/api/v3'\n// Pass pre-generated schema type ID to adapter\nconst adapter = OpenAPIBuilder<'petStore'>()\nconst api = createClient({ baseURL }).with(adapter)\n\n// Typed parameters and response\nconst response = await api('/user/{username}', {\n method: 'GET',\n path: { username: 'user1' },\n})\n```\n\n | \n\n**What it does:**\n\nIf your API has an [OpenAPI](https://swagger.io/resources/open-api/) schema, APIful can use it to generate types for you, which the `OpenAPIBuilder` extension then consumes to provide type-safe API calls.\n\nFor example, the response returned by the API call on the left is typed as follows:\n\n```ts\nconst response: {\n id?: number\n username?: string\n // …\n}\n```\n\nFollow the [OpenAPI extension documentation](https://apiful.land/extensions/openapi) to learn more about how to generate TypeScript definitions from your OpenAPI schema files.\n\n |