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OpenRouterA unified interface for AI modelsAI API Gateways
CrazyrouterOne API key for 300+ AI models with OpenAI-compatible endpoints and unified pay-as-you-go pricing.AI API Gateways
PoYo.aiOne API key for 500+ AI models, with credit pricing, polling or webhooks, and no charge for failed tasks.7 alternatives sharing at least one category. Listed by publication date, newest first.
OpenRouter gives developers access to AI models through a unified API and a chat interface. Its model catalog lets users compare models, providers, context lengths, capabilities and token prices. Free models are available alongside paid usage, with routing and fallback options for applications that use multiple model providers.
Use cases Build AI applications, Compare model options
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Crazyrouter is an AI API gateway that provides a unified endpoint for accessing models from multiple providers. Its official site describes one-key access to more than 300 models and OpenAI-compatible integration. The public Model Square lets visitors browse and search the model catalog, filter by vendor, tags, pricing type, or endpoint type, and compare current per-token or per-request prices, latency, throughput, and status. The service uses pay-as-you-go model pricing, with the official catalog showing individual rates and some discounted prices. Developers can use the Console to manage the service, but the dashboard requires sign-in.
Use cases Integrate multiple AI providers, Compare model costs before choosing
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PoYo.ai provides developers with one API for image, video, music, chat, and 3D generation models. The site describes access to hundreds of models, asynchronous job handling through polling or webhooks, and credit-based pricing where failed generations are not charged. It is intended for developers and product teams adding generative media capabilities to their own applications.
Categories AI API Gateways
Full reviewAPIMart gives product teams a single OpenAI-compatible API for using more than 190 language, image, and video models. Its console brings API keys, shared billing, usage monitoring, provider routing, and production access together, so teams can integrate different model families without maintaining separate account and billing flows for each provider. The site also describes health-aware routing and a unified invoice across providers.
Categories AI API Gateways
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APIMaster aggregates AI API providers and says it fingerprint-tests providers weekly to verify model authenticity. Its Toolify product page describes one API key for GPT, Claude, DeepSeek, and Gemini, OpenAI-compatible endpoints, public provider detection results, and pay-as-you-go top-ups from $1.
Categories AI API Gateways
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Together Link connects coding harnesses to open models served by Together AI, so developers can keep their existing agent workflow and choose models from Together’s catalog. The launch is an integration point for using those models inside a harness; model inference is billed through Together AI according to its published usage pricing.
Categories AI API Gateways
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FastRouter is a unified AI gateway and control plane for developers and enterprise teams building with large language models. It routes requests across more than 200 models through one OpenAI-compatible API, optimizing for cost, latency, quality, and reliability. Intelligent routing, failover, observability, and governance help teams scale AI applications while keeping the option to switch model providers without changing application code.
Use cases Build multi-model AI applications, Balance model cost and latency, Improve resilience across providers
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