A community Swift package used to interact with the OpenAI API



OpenAIKit is a Swift package used to communicate with the OpenAI API.


Add the dependency to Package.swift:

dependencies: [
    .package(url: "", from: "1.0.0")
targets: [
    .target(name: "App", dependencies: [
        .product(name: "OpenAIKit", package: "openai-kit"),

It is encouraged to use environment variables to inject the OpenAI API key, instead of hardcoding it in the source code.

# .env


⚠️ OpenAI strongly recommends developers of client-side applications proxy requests through a separate backend service to keep their API key safe. API keys can access and manipulate customer billing, usage, and organizational data, so it's a significant risk to expose them.

Create a OpenAIKit.Client by passing a configuration.

var apiKey: String {

var organization: String {


// Generally we would advise on creating a single HTTPClient for the lifecycle of your application and recommend shutting it down on application close.

let eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)

let httpClient = HTTPClient(eventLoopGroupProvider: .shared(eventLoopGroup))

defer {
    // it's important to shutdown the httpClient after all requests are done, even if one failed. See:
    try? httpClient.syncShutdown()

let configuration = Configuration(apiKey: apiKey, organization: organization)

let openAIClient = OpenAIKit.Client(httpClient: httpClient, configuration: configuration)

If you don't want to use SwiftNIO you can use URLSession.

let urlSession = URLSession(configuration: .default)
let configuration = Configuration(apiKey: apiKey, organization: organization)
let openAIClient = OpenAIKit.Client(session: urlSession, configuration: configuration)

Using the API

The OpenAIKit.Client implements a handful of methods to interact with the OpenAI API:

import OpenAIKit

let completion = try await openAIClient.completions.create(
    model: Model.GPT3.davinci,
    prompts: ["Write a haiku"]

What's Implemented

Error handling

If the request to the API failed for any reason an OpenAIKit.APIErrorResponse is thrown. Simply ensure you catch errors thrown like any other throwing function

do {
} catch let error as APIErrorResponse {


  • Swift Tools 5.7.0
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Last updated: Thu Feb 29 2024 03:30:04 GMT-1000 (Hawaii-Aleutian Standard Time)