APIMart

APIMart is a unified AI API gateway that gives developers access to 500+ leading models through a single OpenAI-compatible endpoint. Instead of signing up with every provider, managing separate keys, and reconciling separate invoices, you integrate once and call any model you need across text, image, video, audio and multimodal workloads. Model coverage spans frontier LLMs such as GPT-5, Claude Sonnet 4.5, Gemini, Qwen, Kimi and MiniMax; image models including GPT-Image, Nano Banana, Seedream, Flux, Midjourney and Qwen-Image; video models including Sora 2, Sora 2 Pro, Veo 3.1, Kling, Hailuo, Wan, Seedance and PixVerse; plus audio and music generation with Suno. Teams use APIMart for four reasons. One key and one bill: authentication, billing, monitoring and usage analytics live in a single console instead of a dozen provider dashboards. Drop-in compatibility: the API follows the OpenAI schema, so most SDKs, agent frameworks and existing code work by changing only the base URL and the key. Lower operating cost: discounted rates against list pricing, with volume tiers and bundles that reward multi-model usage. No rewrite to switch models: swap a model name to move between vendors, run A/B comparisons, or fail over when a provider is degraded. We built APIMart because shipping a multi-model AI product meant maintaining a separate integration, contract and invoice for every vendor, and rewriting code every time a better model shipped. It is made for indie developers, AI startups and product teams building chatbots, coding agents, image and video generation features, or research tooling, who want the widest model coverage without vendor lock-in or procurement overhead. Start free with no credit card required, then pay as you go with prepaid credits. Documentation, the model catalog and live pricing are public, and support is available through Discord, Telegram and email.