Self-hosted LLM API router with key management
TL;DR
Unified LLM API router for AI/ML engineers at startups using 2+ providers that routes requests with smart fallbacks and auto-throttling so they can cut API-related downtime to near-zero and reduce manual key management time by 10+ hours/month
Target Audience
AI/ML engineers and dev teams at startups or mid-sized companies using 2+ LLM providers for research or production.
The Problem
Problem Context
Teams using multiple AI models (e.g., OpenAI, Mistral, Anthropic) struggle to manage API keys, authentication, and routing across providers. Manual key handling leads to security risks, downtime, and wasted time switching between APIs. Current solutions like OpenRouter are closed-source, forcing users into vendor lock-in or complex DIY setups.
Pain Points
Users waste 5+ hours/week managing keys, dealing with rate limits, and debugging API failures. They risk exposing keys in code or configs, face downtime when keys expire, and lack visibility into usage across providers. DIY solutions (e.g., scripts, proxies) break often and don’t scale.
Impact
Downtime costs lost productivity (e.g., stalled model training), security breaches risk data leaks, and manual work diverts engineers from core tasks. Teams using multiple LLMs for research or production can’t scale without a reliable router.
Urgency
The problem is immediate—every API call requires valid keys, and failures halt workflows. Teams can’t ignore it because it directly blocks revenue-generating work (e.g., AI-powered apps, research outputs).
Target Audience
AI/ML engineers, data scientists, and dev teams at startups or mid-sized companies using 2+ LLM providers. Also affects researchers, freelancers, and agencies building AI tools for clients.
Proposed AI Solution
Solution Approach
A lightweight, self-hosted (or cloud-based) tool that acts as a single entry point for all LLM APIs. It manages keys, routes requests, enforces rate limits, and monitors health—eliminating the need to handle each provider’s API separately. Open-source core with optional paid features (e.g., advanced analytics, SSO).
Key Features
- Smart Routing: Direct requests to the best API (e.g., fallback to cheaper providers when primary fails).
- Rate Limit Protection: Auto-throttle requests to avoid bans.
- Health Monitoring: Alerts for API outages or key issues.
User Experience
Users install the router (Docker or CLI), add their API keys via a config file, and point their apps to a single endpoint. The tool handles the rest—no manual key swapping or API-specific code changes. Dashboards show usage, errors, and cost breakdowns.
Differentiation
Unlike OpenRouter (closed-source), this is open-core: free self-hosted version + paid cloud/enterprise tiers. Unlike manual scripts, it’s maintained, scalable, and includes monitoring. Proprietary key rotation logic prevents leaks better than DIY solutions.
Scalability
Starts as a single-user tool, then adds team features (e.g., shared key pools, admin controls). Cloud version scales with API call volume. Enterprise tiers offer SSO, audit logs, and priority support.
Expected Impact
Saves 10+ hours/month on key management, reduces downtime to near-zero, and cuts API costs via smart routing. Teams can iterate faster without API-related blockers. Security risks (exposed keys) are eliminated.