title: Effect AI SDK subtitle: Integrate OpenRouter using the Effect AI SDK headline: ‘Effect AI SDK Integration | OpenRouter SDK Support’ canonical-url: https://openrouter.ai/docs/guides/community/effect-ai-sdk og:site_name: OpenRouter Documentation og:title: ‘Effect AI SDK Integration - OpenRouter SDK Support’ og:description: ‘Integrate OpenRouter using the Effect AI SDK. Complete guide for integrating the Effect AI SDK with OpenRouter.’ og:image: https://openrouter.ai/dynamic-og?title=Effect%20AI%20SDK&description=Effect%20AI%20SDK%20Integration og:image:width: 1200 og:image:height: 630 twitter:card: summary_large_image twitter:site: ‘@OpenRouterAI’ noindex: false nofollow: false

Effect AI SDK

You can use the Effect AI SDK to integrate OpenRouter with your Effect applications. To get started, install the following packages:

• effect: the Effect core (if not already installed)
• @effect/ai: the core Effect AI SDK abstractions
• @effect/ai-openrouter: the Effect AI provider integration for OpenRouter
• @effect/platform: platform-agnostic abstractions for Effect

$
npm install effect @effect/ai @effect/ai-openrouter @effect/platform

Once that’s done you can use the LanguageModel module to define interactions with a large language model via OpenRouter.

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import { LanguageModel } from "@effect/ai"
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import { OpenRouterClient, OpenRouterLanguageModel } from "@effect/ai-openrouter"
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import { FetchHttpClient } from "@effect/platform"
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import { Config, Effect, Layer, Stream } from "effect"
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const Gpt4o = OpenRouterLanguageModel.model("openai/gpt-4o")
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const program = LanguageModel.streamText({
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  prompt: [
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    { role: "system", content: "You are a comedian with a penchant for groan-inducing puns" },
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    { role: "user", content: [{ type: "text", text: "Tell me a dad joke" }] }
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  ]
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}).pipe(
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  Stream.filter((part) => part.type === "text-delta"),
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  Stream.runForEach((part) => Effect.sync(() => process.stdout.write(part.delta))),
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  Effect.provide(Gpt4o)
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)
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const OpenRouter = OpenRouterClient.layerConfig({
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  apiKey: Config.redacted("OPENROUTER_API_KEY")
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}).pipe(Layer.provide(FetchHttpClient.layer))
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program.pipe(
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  Effect.provide(OpenRouter),
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  Effect.runPromise
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)