LLM Gateway
LLM Gateway is an open-source API gateway that acts as a unified middleware platform for routing, managing, and analyzing requests across multiple Large Language Model providers through a single API interface.
https://llmgateway.io/?ref=producthunt
Product Information
Updated:Jul 4, 2025
What is LLM Gateway
LLM Gateway is a foundational infrastructure component that simplifies the integration and management of Large Language Models (LLMs) in applications. It serves as a centralized platform that maintains compatibility with the OpenAI API format, allowing developers to connect with various LLM providers such as OpenAI, Anthropic, Google Vertex AI, and others through a single interface. The platform offers both self-hosted and hosted versions (llmgateway.io), making it flexible for different deployment needs while providing comprehensive tools for API management, monitoring, and analytics.
Key Features of LLM Gateway
LLM Gateway is an open-source API gateway that provides a unified interface for managing interactions with multiple Large Language Model providers. It offers centralized control, real-time monitoring, and enterprise-grade governance while simplifying integration through a single API endpoint. The platform includes features for cost tracking, performance analytics, security management, and supports both self-hosted and cloud-based deployments.
Unified API Interface: Provides a single API endpoint that works with multiple LLM providers (OpenAI, Anthropic, Google, etc.), allowing developers to maintain existing code while simply changing the API endpoint
Performance Monitoring & Analytics: Offers detailed insights into usage patterns, response times, and costs across different models with real-time tracking and analytics capabilities
Security & Compliance: Centralizes access control, manages secrets, and implements role-based access control (RBAC) while ensuring data privacy compliance through sensitive information masking
Flexible Deployment Options: Supports both self-hosted deployment for complete control over infrastructure and a hosted cloud version for immediate use without setup
Use Cases of LLM Gateway
Enterprise AI Integration: Large organizations can centrally manage and monitor multiple LLM services across different departments while maintaining security and cost control
AI Application Development: Developers can quickly build and scale AI applications without worrying about individual provider integrations or API complexities
Financial Analysis Tools: Financial institutions can implement LLM-based analysis tools with proper debugging and monitoring capabilities to ensure accurate outputs
Multi-Model Testing: Research teams can easily compare and evaluate different LLM models' performance and cost-effectiveness through a single interface
Pros
Open-source with MIT license for self-hosting
No gateway fees on Pro plan with own provider keys
Comprehensive analytics and monitoring capabilities
Simple integration with existing code bases
Cons
3-day data retention limit on basic plans
Some advanced features limited to enterprise tier
Requires technical expertise for self-hosted deployment
How to Use LLM Gateway
Sign up for an account: Visit llmgateway.io to create an account and obtain your API key
Choose deployment option: Select either hosted version (immediate use) or self-hosted version (deploy on your own infrastructure)
Configure API endpoint: Update your existing code to point to the LLM Gateway API endpoint instead of direct provider endpoints
Make API requests: Send requests using the standard OpenAI-compatible format with your LLM Gateway API key in the Authorization header
Example API call: curl -X POST https://api.llmgateway.io/v1/chat/completions \ -H "Content-Type: application/json" \ -H "Authorization: Bearer $LLM_GATEWAY_API_KEY" \ -d '{ "model": "gpt-4", "messages": [ {"role": "user", "content": "Hello"} ] }'
Monitor performance: Use the dashboard to track usage, costs, and performance metrics across different LLM providers
Configure routing rules: Set up custom routing rules to direct requests to specific models based on your requirements
Access analytics: Review detailed analytics and logs through the Gateway Console at http://localhost:8787/public/ (for self-hosted) or web interface
LLM Gateway FAQs
LLM Gateway is an open-source API gateway for Large Language Models (LLMs) that allows you to connect to various LLM providers through a single unified API interface.
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