Axonhub
⚡️ Open-source AI Gateway — Use any SDK to call 100+ LLMs. Built-in failover, load balancing, cost control & end-to-end tracing.
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What is Axonhub?
AxonHub is an open-source AI gateway platform that serves as a unified API gateway between your applications and over 100 large language model providers. It eliminates vendor lock-in by allowing developers to use any SDK (OpenAI, Anthropic, AI SDK) to call any model without changing a single line of application code. The platform transparently translates, routes, and load-balances requests across 13+ providers including OpenAI, Anthropic, Gemini, DeepSeek, and many open-source alternatives through a single endpoint.
The gateway acts as a bidirectional transformer that parses incoming requests, validates them, normalizes them into an internal unified format, then routes through an intelligent load balancer to the best available channel. Requests are transformed into the provider's native format before forwarding, and responses travel back through the same pipeline in reverse, arriving in the exact format your SDK expects. Key infrastructure features include built-in failover mechanisms, adaptive load balancing, cost monitoring and control, and comprehensive end-to-end tracing for debugging.
AxonHub is designed for development teams and organizations building production AI applications who need to compare models, switch providers seamlessly, maintain observability, and control costs. It supports both local deployment and scaling out for production workflows. The platform enables faster task completion, significant cost savings by dynamically selecting optimal models, and higher quality content generation without being tied to a single vendor.
The platform includes project management capabilities, RBAC (role-based access control), API translation layers compatible with different AI SDKs, and the ability to experiment with multiple models while managing production deployments that rely on several providers simultaneously.
Axonhub pricing
Pricing model: Freemium
AxonHub is completely free and open-source. There is no paid tier or subscription model. The platform itself has no licensing costs. You only pay the inference fees directly to the AI model providers (OpenAI, Anthropic, etc.) at their standard per-token rates with no markup from AxonHub. The gateway can be self-hosted on your own infrastructure at no additional software cost.
Axonhub pros
- Open-source and free to use
- Supports 100+ LLMs from 13+ providers
- Use any SDK to call any model
- No application code changes needed when switching models
- Built-in failover for reliability
- Adaptive load balancing for speed optimization
- Cost monitoring and control features
- End-to-end tracing for debugging
- Eliminates vendor lock-in completely
- Drop-in replacement for OpenAI/Anthropic endpoints
- Can be deployed locally or scaled out
- Supports Claude Code integration
- RBAC for access control
- Project management built-in
- Intelligent smart routing prioritizes cost efficiency
- Automatic fallback to cost-effective alternatives
Axonhub cons
- Self-hosted infrastructure required
- Configuration complexity for beginners
- Requires YAML configuration files
- No managed cloud hosting option
- Learning curve for channel management
- Model ID conflicts can cause startup failures
- Limited documentation compared to commercial gateways
- Active development may have breaking changes
Frequently asked questions about Axonhub
What is AxonHub?
AxonHub is an open-source AI gateway platform that provides a unified API gateway between your applications and over 100 large language model providers. It eliminates vendor lock-in by letting you use any SDK to call any model without changing application code, while providing built-in failover, load balancing, cost control, and end-to-end tracing.
Which AI providers does AxonHub support?
AxonHub supports 13+ providers including OpenAI, Anthropic, Gemini, DeepSeek, and many open-source alternatives, with access to 100+ LLMs total. The platform translates requests between different provider API formats seamlessly.
Do I need to change my code to use AxonHub?
No. AxonHub is designed as a drop-in replacement that requires zero application code changes. Whether your team uses Python with the OpenAI SDK or TypeScript with the Anthropic SDK, AxonHub transparently translates requests so you can switch models by changing just one model parameter.
How does AxonHub handle load balancing?
AxonHub uses adaptive load balancing that prioritizes cost efficiency. It first tries a cheap model, and if that fails, automatically falls back to another cost-effective option. The intelligent router selects the best available channel for each request.
What happens if a provider goes down?
AxonHub has built-in failover mechanisms that provide automatic fallback. If one provider channel fails, the gateway automatically routes requests to another available channel, ensuring your application never fails due to provider downtime.
Is AxonHub free to use?
Yes, AxonHub is completely free and open-source with no paid tiers or licensing fees. You only pay the per-token inference costs directly to the AI model providers at their standard rates with no markup from AxonHub.
Can I deploy AxonHub locally?
Yes, AxonHub can be deployed locally on your own infrastructure or scaled out for production use. The platform is designed to work both as a local development tool and for managing production AI workflows.
How does AxonHub handle cost control?
AxonHub provides cost monitoring and control features for multi-provider deployments. The smart routing prioritizes cost by trying cheaper models first, and you can track usage across all providers from a single gateway to manage your AI spending.
Can I use AxonHub with Claude Code?
Yes, AxonHub can act as a drop-in replacement for Anthropic endpoints, letting Claude Code connect through your own infrastructure. This enables you to use Claude Code with your configured AxonHub channels.
What is a channel in AxonHub?
A channel is AxonHub's connection to an AI provider like OpenAI, Anthropic, or DeepSeek. Channel management allows you to configure provider connections, API keys, and routing rules for each provider through YAML configuration files.