Connect external services to LLMs and agents.

Connect external services to LLMs.

Candle is an SDK that provides programmatic read and write access to consumer internet services.

Try Early Preview DocumentationDocs

Features & Benefits

Secure. Fast. Reliable.

We provide you with the tools you need to build a seamless experience for your users.

Read Access

Real-time data

Function Calling Tools

Write Access

UI Components

Full Account Coverage

Seamless Development

Hello, World!

No slow & unreliable browser automation, just effortless function calls.

import SwiftUI
import Candle // STEP 1: Import Candle

struct ContentView: View {
    @Environment(CandleClient.self) private var client
    // STEP 2: Add State for sheet
    @State private var showSheet = false
    @State private var linkedAccounts: [Models.LinkedAccount] = []
    @State private var linkedAccount: Models.LinkedAccount?

    var body: some View {
        NavigationStack {
            List {
                ForEach(linkedAccounts) { account in
                    Text("\(account.service.name): \(account.id)")
                }
            }
            .navigationTitle("Linked Accounts")
            Spacer()
            Button("Link Account") {
                showSheet = true
            }
            .buttonStyle(.bordered)
        }
        // STEP 3: Add sheet 🎉
        .candleLinkSheet(isPresented: $showSheet) { newLinkedAccount in
            print("New linked account:", newLinkedAccount.id)
            linkedAccount = newLinkedAccount
        }
        .task(id: linkedAccount) {
            do {
                linkedAccounts = try await client.getLinkedAccounts()
            } catch {
                print("Error fetching linked accounts:", error)
            }
        }
    }
}

#Preview {
   ContentView()
        .environment(CandleClient(appUser: .init(appKey: "DEBUG_APP_KEY", appSecret: "DEBUG_APP_SECRET")))
}
        

Fast & Secure

Explore by Category

Every connection you need, packed into one powerful kit.

All product and company names and logos are trademarks™ or registered trademarks® of their respective holders. Their usage does not imply any affiliation with or endorsement by their holders.

Frequently Asked Questions

Data is never stored on our servers; instead, we route requests directly to the external service, preserving security standards and encryption. Candle’s SDK works just like the official app or website does.

Our SDK currently supports financial services like Robinhood, Cash App, Venmo, Apple Wallet, and more. Our grand vision is to be the only SDK you’ll need to connect to any service. If you need support for a specific one, let us know or with us.

We generate a function-calling schema for every read and write request our SDK supports. These tools integrate directly into popular LLMs developed by OpenAI, Anthropic, Mistral, xAI, Llama and more.

See More FAQs

You can build