How to Migrate Your App to a Different AI API Provider

Not every AI API provider uses the same request format. Daymora exposes its own REST API — see our Next.js integration guide for Daymora-specific code examples. This article is a general migration checklist that applies whenever you move from one provider to another, regardless of API shape.

Step 1: Compare API Documentation

Before starting, read both providers' docs side by side. Note differences in:

• Base URL and path (for example, Daymora uses POST /api/v1/chat)
• Authentication (Daymora uses an API_SECRET header)
• Required request fields (model, messages, stream, and so on)
• Response and streaming formats

Do not assume two providers are interchangeable without verifying their schemas.

Step 2: Update Environment Variables

Store API configuration in environment variables so provider changes stay centralized:

# Old
AI_API_KEY=old-provider-key
AI_API_BASE_URL=https://api.oldprovider.com

# New (example — use values from your target provider's docs)
DAYMORA_API_KEY=your-daymora-key

Update these in your .env.local file for local development and in your deployment platform's environment configuration for production.

Step 3: Update Your HTTP Client

Adapt your fetch calls (or SDK configuration) to match the new provider's documented format. For Daymora, a minimal request looks like:

const response = await fetch("https://daymora.com/api/v1/chat", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "API_SECRET": process.env.DAYMORA_API_KEY,
  },
  body: JSON.stringify({
    model: "gpt-5",
    messages: [{ role: "user", content: "Hello!" }],
    stream: false,
  }),
});

Other providers may use different paths, headers, or body fields — follow their docs exactly.

Step 4: Test the Migration

Run your test suite against the new provider configuration. Pay particular attention to:

• Output format consistency: Does the new provider return the JSON structure your app expects?
• Streaming behavior: If you use streaming, confirm chunk boundaries and event formats match what your client parses.
• Error responses: Verify your error handling covers the new provider's status codes and error bodies.

Step 5: Watch for Subtle Differences

Even when request shapes look similar, providers can differ in:

• Tokenization and context limits — re-measure average token counts after switching
• Default model behavior — review outputs for tone, verbosity, and formatting changes
• Rate limits and retries — update backoff logic if limits differ

Zero-Downtime Cutover

For production migrations:

1. Implement the new provider behind a feature flag or config switch

2. Run shadow traffic or staging tests against the new endpoint

3. Compare outputs on a sample of real requests

4. Cut over during low traffic, with the old provider ready as a fallback

5. Monitor error rates and response quality for 24 hours post-migration

Switching providers is straightforward when you treat it as an integration change — not a one-line base URL swap.

For Daymora-specific pricing, see AI API pricing and What is a flat-rate AI API?.