> ## Documentation Index
> Fetch the complete documentation index at: https://phaseo.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Replit

> Call Phaseo from Replit applications and deployments.

Use Phaseo from Replit with the official OpenAI SDK or the first-party Phaseo AI SDK provider. Keep the API key in Replit Secrets rather than source code.

## Add the secret

In your Replit workspace, open **Tools → Secrets** and add:

```text theme={null}
PHASEO_API_KEY=phaseo_v1_sk_...
```

The secret is exposed to your application as an environment variable.

## TypeScript with OpenAI SDK

```bash theme={null}
npm install openai
```

```ts theme={null}
import OpenAI from "openai";

const client = new OpenAI({
	apiKey: process.env.PHASEO_API_KEY,
	baseURL: "https://api.phaseo.app/v1",
});

const response = await client.responses.create({
	model: "openai/gpt-5-nano",
	input: "Reply with only: ok",
});

console.log(response.output_text);
```

## TypeScript with AI SDK

```bash theme={null}
npm install @phaseo/ai-sdk-provider ai
```

```ts theme={null}
import { phaseo } from "@phaseo/ai-sdk-provider";
import { generateText } from "ai";

const { text } = await generateText({
	model: phaseo("openai/gpt-5-nano"),
	prompt: "Reply with only: ok",
});

console.log(text);
```

## Deployments

Add `PHASEO_API_KEY` to the deployment's secrets as well as the development workspace. Confirm that the deployment does not print environment variables or request headers to logs.

## Related

* [OpenAI SDK](./openai-sdk.mdx)
* [AI SDK](./ai-sdk.mdx)
* [Authentication](../../developers/authentication.mdx)