Free developer tools
A growing collection of free tools from Smart Services. No accounts required. No credit cards. No strings attached.
Smart ServicesLLM Mixer
Build your own zero-dependency LLM SDK. Select providers, download a custom bundle — every line auditable, no supply chain risk.
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Zero dependencies — native fetch only
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OpenAI, Google, Anthropic adapters
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Multimodal input (images + video)
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Streaming support
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Download in 30 seconds
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AI Model Pricing
Compare pricing across LLM providers in real time. Find the cheapest model for your use case with live rates for OpenAI, Google, Anthropic, and more.
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Live pricing from all major providers
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Cost calculator per 1K tokens
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Compare side by side
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Always up to date
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Free API Keys
Get a free, rate-limited API key to access our public pricing and model data endpoints. No credit card, no signup required.
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Free — no credit card
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5 requests/day on free tier
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Instant key generation
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Access pricing & model APIs
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Why are these free?
We believe developers deserve high-quality tools they can actually trust. These tools drive traffic to our paid services — model APIs, chat infrastructure, and analytics. If you like what we build here, you'll love what we offer for production workloads.
No tracking
Auditable code
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No vendor lock-in
More tools coming soon. Stay updated — subscribe when you build your LLM Mixer bundle.
Build your LLM SDK →