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Clarifai gRPC Swift client
.package(url: "https://github.com/Clarifai/clarifai-swift-grpc.git", from: "7.4.0")

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Clarifai Swift gRPC Client

This is the official Clarifai gRPC Swift client for interacting with our powerful recognition API. Clarifai provides a platform for data scientists, developers, researchers and enterprises to master the entire artificial intelligence lifecycle. Gather valuable business insights from images, video and text using computer vision and natural language processing.

GitHub release (latest by date) Build


Add the library to the dependencies list in your project's Package.swift file.

    dependencies: [
        // ... Your other dependencies.
        .package(name: "ClarifaiGrpc", url: "https://github.com/Clarifai/clarifai-swift-grpc", from: "0.0.1")

Use the dependency in your target:

    targets: [
            name: "YOUR-TARGET",
            dependencies: ["ClarifaiGrpc"]),


This library doesn't use semantic versioning. The first two version numbers (X.Y out of X.Y.Z) follow the API (backend) versioning, and whenever the API gets updated, this library follows it.

The third version number (Z out of X.Y.Z) is used by this library for any independent releases of library-specific improvements and bug fixes.

Getting started

Construct the client and setup your API key or Personal Access Token in the metadata variable.

import NIO
import GRPC
import ClarifaiGrpc

let group = MultiThreadedEventLoopGroup(numberOfThreads: 1)
let channel = ClientConnection.secure(group: group).connect(host: "api.clarifai.com", port: 443)

var authHeaders: HPACKHeaders = ["Authorization": "Key MY_CLARIFAI_API_KEY_OR_PAT"]
let client = Clarifai_Api_V2Client(channel: channel, defaultCallOptions: CallOptions(customMetadata: authHeaders))

Predict concepts in an image:

let response = try client.postModelOutputs(
    Clarifai_Api_PostModelOutputsRequest.with {
        // This is the ID of the publicly available General model.
        $0.modelID = "aaa03c23b3724a16a56b629203edc62c";
        $0.inputs = [
            Clarifai_Api_Input.with {
                $0.data = Clarifai_Api_Data.with {
                    $0.image = Clarifai_Api_Image.with {
                        $0.url = "https://samples.clarifai.com/dog2.jpeg"

if response.status.code != Clarifai_Api_Status_StatusCode.success {
    print("Request failed, response: \(response)")
} else {
    print("Predicted concepts")
    for concept in response.outputs[0].data.concepts {
        print("\(concept.name): \(concept.value)")


Stars: 3
Last commit: 13 weeks ago

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iOS Software Engineer @ Perry Street Software
Perry Street Software is Jack’d and SCRUFF. We are two of the world’s largest gay, bi, trans and queer social dating apps on iOS and Android. Our brands reach more than 20 million members worldwide so members can connect, meet and express themselves on a platform that prioritizes privacy and security. We invest heavily into SwiftUI and using Swift Packages to modularize the codebase.

Release Notes

Release 7.4.0
13 weeks ago

Swiftpack is being maintained by Petr Pavlik | @ptrpavlik | @swiftpackco | API