Gapier Features Gapier Features. Gapier offers 50 tailor-made, free Actions APIs for GPTs creators. Expand your GPTs capabilities with our diverse and easily integrable APIs, designed specifically for ChatGPT users. Related AI tools Music.AI 22/07/2024 000 AI API Design Quickbot AI 22/07/2024 000 AI API Design Hance.ai 22/07/2024 000 AI API Design Chatwith 22/07/2024 000 AI API Design NocoAI 17/07/2024 000 AI Advertising Assistant Rediscover the internet 22/07/2024 000 AI API Design