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One API key for leading AI models, built for Claude Code, Codex, and pay-as-you-go development.
FlyRouter is a production-grade LLM gateway that provides a unified OpenAI-compatible API for accessing leading AI models such as Claude, GPT, Gemini, and Grok. It is designed for use with Claude Code, Codex, and other agent clients, offering low latency and support for 10+ agent clients. Additionally, it includes a free AI image generator with daily free GPT Image 2 and Nano Banana generations.
https://api.flyrouter.ai/v1 and add your key. No other code changes are needed.FlyRouter uses a pay-as-you-go model priced in USD. You top up your balance in the console with Alipay or WeChat Pay, and credits are credited instantly. Prices are up to 90% off official rates due to wholesale pricing. The pricing page shows current and official prices side by side. Input, output, and cache prices for each model are listed on the pricing page. Credits do not expire, and there is no subscription required. Failed requests due to upstream outages are not charged. Unused balance can be refunded within 7 days of top-up, minus payment processing fees; used credit is non-refundable.
How do I get started?
Sign up, top up in the console, and create an API key. Then point the Base URL in your code or client to https://api.flyrouter.ai/v1 and add your key. Nothing else in your code needs to change.
What is an LLM router?
A unified API that sits between your tools and model providers. You call one endpoint with one key; the gateway forwards each request to the channel for the model you choose, meters usage, and gives you a single consolidated bill.
Is FlyRouter OpenAI-compatible?
Yes, and it supports both formats. The OpenAI-compatible endpoint works with the official OpenAI SDK and Codex by changing only the base URL. Claude Code connects through the Anthropic-compatible endpoint with two environment variables.
Can I use it with Claude Code, Codex, and other clients?
Yes. Claude Code connects through the Anthropic-compatible endpoint and Codex through the OpenAI-compatible endpoint. Clients like CC Switch and OpenClaw only need the Base URL and your key. See the API docs for step-by-step setup.
Which models are supported?
Leading frontier models including Claude, GPT, and Grok, with more added over time. The full list, live prices, and official prices are all on the pricing page.
How can prices be up to 90% off?
The discount comes from wholesale pricing: we buy upstream capacity in bulk and resell it below official rates, passing the difference on to you. Discounts vary by model, and the pricing page shows current and official prices side by side so you can check.
How does billing and top-up work?
You pay for actual usage, priced in USD. Input, output, and cache prices for each model are listed on the pricing page. You can top up in the console with Alipay or WeChat Pay, and your balance is credited instantly.
Do credits expire?
No. Top up anytime and use credits whenever you like. No subscription required.
Am I charged for failed requests?
Requests that fail because of an upstream outage are not charged. Every call's model, token usage, and charge is logged in the console so you can check them line by line.
Can I get a refund?
Unused balance can be refunded to the original payment method within 7 days of top-up; contact us to request it. Payment processing fees are deducted, and used credit is non-refundable.
Will my data be used to train models?
No. Prompts and completions are used only for routing, metering, billing, risk control, and support. They are never used for training or sold as usage data.
How can I check whether the service is up?
The status page shows each model's success rate and latency over the last 24 hours. If something looks off, check there first to see whether it's a wider outage.
Need help or want to share feedback?
Email support@flyrouter.ai or use the contact channels in the footer. We'll get back to you as soon as we can.