I built a persistent memory API for AI agents — and it's free

AgentMemo is a free REST API providing AI agents with persistent memory, allowing for semantic storage and retrieval of user context beyond single sessions. Separately, the DG AI API offers a completely free service requiring no keys or accounts. Powered by Cloudflare workers, DG AI API supports four different models with a smart fallback system, providing users with 60,000 requests per day and a limit of 20 requests per minute via its dedicated URL.