AI API
Otari
An open-source, OpenAI-compatible LLM gateway you run yourself, providing a single endpoint for 40+ providers with virtual keys, budgets, and usage tracking.
Otari
What is Otari?
Otari is an open-source proxy server that routes LLM requests from your applications to over 40 providers through a single OpenAI-compatible endpoint, handling authentication, budget enforcement, and usage logging.
Otari vs Similar AI Tools
| Pricing Model | Free | Free, Freemium | Free, Free Trial, Custom Pricing | Free, Freemium |
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How to use Otari?
- 1Deploy Otari using Docker (e.g., docker run with your provider keys and master key).
- 2Create a virtual API key via the management endpoint or bootstrapped key.
- 3Point your OpenAI client to http://localhost:8000/v1 with the virtual key.
- 4Make requests using any model provider (e.g., openai:gpt-4o-mini).
- 5Monitor usage and budgets via the /v1/usage endpoint.
Otari Key Features
- OpenAI-compatible endpoint for 40+ LLM providers
- Virtual API keys with scoped permissions and revocation
- Pre-request budget enforcement per user and per key
- Usage and spend logging with queryable history
- Built-in tools: sandboxed code execution and web search
- Guardrails for input safety (e.g., prompt injection detection)
- Standalone or hybrid mode with cloud management
Otari Use Cases
- Centralize API key management for multiple LLM providers
- Control costs by setting budgets before requests execute
- Enable secure access to LLMs without exposing provider keys
- Track usage across teams and applications
- Run custom guardrails and tools with any model
Otari Pricing & Free Credits
Otari currently operates on a Free model.
This tool is completely free to use
Otari Pros & Cons
Pros
- Open-source and self-hosted, keeping provider keys and data in your environment
- One endpoint simplifies client integration across providers
- Budget enforcement before calls, preventing unexpected costs
- Comprehensive usage tracking and logging
Cons
- Requires initial setup and maintenance of the server
- Self-hosted mode lacks managed multi-provider fallback (available in hybrid mode with otari.ai account)
- Some advanced features (e.g., native provider tools) are limited to specific models
What is Otari best for?
- Developers and teams needing a unified LLM API gateway
- Organizations requiring fine-grained access control and cost management
- Those who want to avoid vendor lock-in and keep data private