OnlySQ is a significant utility for the AI agent ecosystem because it simplifies the orchestration layer. For developers building agents that need to switch between models for different tasks—such as using a high-reasoning model for planning and a cheaper, faster model for execution—OnlySQ provides a unified interface that supports tool-calling. This means an agent's capability to interact with external APIs is preserved even when the underlying model is swapped.
In the broader agent stack, OnlySQ sits at the infrastructure and connectivity layer. By providing Python and TypeScript SDKs and maintaining compatibility with OpenAI libraries, they reduce the friction of implementing complex agentic workflows. Their support for multimodal capabilities also enables the development of vision-capable agents through a single integration point, making them a relevant choice for developers who require high flexibility without the overhead of managing dozens of individual API integrations.
OnlySQ is an API infrastructure provider that addresses the fragmentation of the artificial intelligence market. As the number of available large language models (LLMs) and generative image models continues to expand, developers face the increasing complexity of managing multiple API keys, billing accounts, and disparate SDKs. OnlySQ centralizes this access, providing a single point of entry for over 40 models, including those from OpenAI, Anthropic, and Google.
The core product is the OnlySq API 2.0, which is designed as a drop-in replacement for OpenAI’s API. This architectural choice is significant; it allows any application built using the standard OpenAI Python or TypeScript libraries to connect to OnlySQ simply by changing the base URL. This eliminates the need for developers to learn new request patterns or rewrite integration logic when testing different models like Claude 3.5 or Gemini Pro.
Beyond basic text completion, the platform supports advanced model features such as tool-calling (function calling) and multimodal inputs. Tool-calling is a critical capability for building autonomous agents, as it allows a model to interact with external systems by generating structured data for function execution. OnlySQ provides a native implementation for these features across its model suite, ensuring that developers can maintain agentic behavior regardless of the underlying model being utilized.
OnlySQ is not just a backend service; it has developed a suite of client-side tools that demonstrate the API's utility. These include a Cloud storage service, a Telegram bot for mobile access, and dedicated desktop and Android applications. The OnlySq AI App is a community-driven Android client that allows users to chat with various models in a sandbox environment, serving as both a consumer product and a demonstration of the platform’s low-latency performance.
Documentation is centralized on the company's website, covering both the unified API and the proprietary request options that offer extended features. This dual-path approach allows developers to choose between maximum compatibility with existing standards or deeper integration with OnlySQ’s specific enhancements.
The company operates as a specialized team of developers focused on bots, scripts, and API infrastructure. While much of the AI infrastructure market is dominated by US-based firms, OnlySQ’s presence in the .ru domain and its integration with regional platforms like RuStore indicate a strong focus on the Eastern European and CIS developer ecosystems. They emphasize a "free and fast" model for many of their services, which likely acts as a top-of-funnel strategy to attract developers who are discouraged by the complex geographic or financial barriers often associated with direct access to major AI providers. By commoditizing access to these models, OnlySQ provides a layer of abstraction that prioritizes developer speed and cross-model flexibility.
A unified API platform providing access to 40+ AI models with OpenAI library compatibility.
OnlySQ is hiring.