01
Connect
If you already use a model provider's official SDK, tools, or request format, your application code usually stays the same. Change the base URL to the CostRouter address and use your CostRouter API-Key.
AI API Cost Routing Platform
Access Multiple AI Models With One API-Key
CostRouter gives teams one API-Key for GPT, Claude, Gemini, DeepSeek, Grok, Qwen and more, with request formats compatible with each model provider's official API. Usually, no code changes are needed; replace the base URL and API-Key.
GPT, Claude, Gemini, DeepSeek, Grok, Qwen and moreSave up to 60%Providers compete in real timeChatbotsAI AppsContent CreationData AnalysisInternal Workflows
Potential savings
Up to 60%
Model access
Multi-model
Integration
One API-Key
How CostRouter Works
CostRouter answers the two questions teams ask first: why can API calls be cheaper, and how much work is required to connect?
02
Choose Models
Use one API-Key to call GPT, Claude, Gemini, DeepSeek, Grok, Qwen and more while keeping request formats compatible with each model provider's official API. Select a specific model, or let CostRouter route requests based on price, speed and availability.
03
Reduce Token Costs Automatically
CostRouter compares available routes in real time and sends each request through a qualified lower-cost channel when possible, helping teams reduce AI token costs without changing their workflow.
API-Keysingle API-Keybest ratesexchangeAPI channelsreal-time routingprice-to-quality ratioOfficial API compatible
Who is CostRouter for?
Use one model access layer across product experiments, production AI applications, internal tools and agent automation.
Indie Hackers
Build AI products faster with one unified API and less time spent wiring separate provider accounts.
Startups
Scale AI applications with flexible model access, lower token costs and faster model switching.
Enterprise Teams
Manage multi-model API access for enterprise teams with clearer usage, spend and routing controls.
AI Agents
Run reliable model routing for AI agents and automation that depend on speed, cost and availability.
A Marketplace for AI Model Access
CostRouter connects global model access channels with developers and teams that need reliable, flexible and cost-efficient AI API access.
For Channel Partners
If you have access to reliable AI model capacity, regional model channels or volume-based pricing, CostRouter helps you connect that supply with real developer demand through a structured marketplace.
List supported models and available routes
Set flexible pricing and capacity rules
Reach developers, startups and enterprise users
Monitor usage, performance and delivery quality
Expand demand without building your own interface
For Developers & Teams
CostRouter gives developers and teams unified access to a wide range of AI models, with intelligent routing designed to balance price, speed, availability and task requirements.
Access GPT, Claude, Gemini, DeepSeek, Grok, Qwen, Llama and more
Keep the provider official API format; replace only the base URL and API-Key
Route requests by price, speed and availability
Switch models without rebuilding your integration
Track usage, spending and model performance in one place
Frequently Asked Questions
Answers for pricing, compatibility, model routing, partner supply and production use.
Is CostRouter compatible with OpenAI SDKs?
Yes. OpenAI models use the same interface format as the official OpenAI API. Usually, no code changes are needed; point your existing SDK or HTTP client to the CostRouter base URL and use your CostRouter API-Key.
Why can CostRouter be cheaper than official prices?
CostRouter compares qualified API channels and provider capacity in real time. When a lower-cost route meets availability and quality requirements, requests can be sent through that route.
Do I need separate keys for GPT, Claude, Gemini and DeepSeek?
No. A single CostRouter API-Key can access multiple supported models. Each model keeps the request format compatible with its corresponding official API, depending on account permissions and route availability.
Can I choose a specific model?
Yes. You can request a specific model by name, or use routing rules that balance price, speed and availability for your workload.
Where can I see all supported models?
Open Model Square to browse current model availability, provider details, endpoints, groups and pricing information.
Is CostRouter only for developers?
No. It is useful for indie builders, startups, enterprise teams, AI agents and channel partners that want to publish reliable model capacity.
Can channel partners list their own capacity?
CostRouter is designed around a marketplace model where qualified channel partners can expose supported models, routes, pricing and capacity rules.
Will I need to rewrite my application?
Most official SDK or HTTP integrations do not need application code changes. Change the base URL and use one CostRouter API-Key, then keep your existing tools and SDKs while gradually adopting model routing.