How Can You Migrate from a Direct Model API to an Aggregator?

How to migrate from a direct model API to an aggregator: a staged strangler approach, parallel running, and the comparisons to make before cutover.

By Dora 2 min read
How Can You Migrate from a Direct Model API to an Aggregator?

Overview

Migrate from a direct model API to an aggregator by mapping your current model calls, request formats, response handling, errors, billing assumptions, and production workflows before changing traffic. The goal is to reduce provider lock-in without breaking the product.

  • Inventory current endpoints, prompts, media formats, and job states.
  • Build an adapter layer so the application is not tied to one provider.
  • Test output quality, latency, cost, and error behavior before switching users.

Migration should happen in stages. Start with a small internal test, then route low-risk traffic, then expand once monitoring shows stable results. Keep the direct provider route available until the aggregator path is proven.

WaveSpeedAI is relevant when the team wants access to multiple multimodal models without maintaining direct integrations for each one. It should not be presented as a one-click migration for every architecture. The practical value is a cleaner model access layer, easier model comparison, and a path to fallback or switching. A careful migration plan protects both user experience and budget. Migrate by strangling, not switching: route one low-risk workload through the aggregator, run it parallel to the direct integration for two weeks, compare outputs and invoices, then move traffic in stages.