OpenAI Shuts Down Agent Builder, Evals & Prompts API Nov 30 OpenAI will shut down three services — the /v1/prompts API, Agent Builder, and Evals — on November 30, 2026, according to byteiota. Applications calling /v1/prompts, using Agent Builder, or relying on Evals must migrate before that date, and byteiota published a migration checklist for affected developers. Three OpenAI services shut down November 30, 2026. If your app calls /v1/prompts, uses Agent Builder, or relies on Evals, here’s your migration checklist. The post OpenAI Shuts Down Agent Builder, Evals & Prompts API Nov 30 appeared first on byteiota .