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Dev.to
7/10/2026
The original title is: "CachePilot: A drop-in caching proxy for OpenAI/Anthropic/OpenRouter APIs"

The original title is: "CachePilot: A drop-in caching proxy for OpenAI/Anthropic/OpenRouter APIs"

Original: I Built a Drop-in AI API Caching Proxy — Save 70% on Inference Costs

Short summary

A solo developer built CachePilot, a drop-in caching proxy for OpenAI, Anthropic, and OpenRouter APIs that reduces inference costs by caching duplicate requests across multi-layered caches (in-memory LRU, Cloudflare edge, and provider-level prompt caching). The tool requires only a baseURL change and charges 20% of measured savings with no upfront cost. It differentiates from Helicone, Portkey, and Langfuse by making caching the core feature rather than a sidebar, including automatic prompt-cache marker injection for multi-turn conversations.

  • •CachePilot is a caching proxy for OpenAI/Anthropic/OpenRouter that requires only a baseURL change
  • •Multi-layer caching (in-memory LRU, Cloudflare edge, normalizer, provider prompt-cache markers) cuts duplicate request costs to zero
  • •Pricing model: 20% of calculated savings, nothing if you save nothing, 7-day free trial

Generated with AI, which can make mistakes.

#ai-tools#product-launch#open-source
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