Launch HN: Respan (YC W24) – Open-source Rust AI gateway built around plugins

Hey HN, this is Andy from Respan (https://www.respan.ai). We are building an open-source Rust AI gateway. It is a decoupled gateway, so everything is a plugin, including different providers, protocols (MCP, voice), modalities (images, videos), and gateway features (fallbacks, PII redaction, smart routing).Instead of packaging tons of providers and features into one gateway, Respan provides a small core and public interfaces that teams can use to assemble the AI infrastructure their application needs. That way, users can build their own features as additional plugins without having to change the gateway's core.Here’s a video demo: https://www.youtube.com/watch?v=pVv2ibXiTXMThere are countless LLM gateways and most of them solve a common problem: calling different providers from a single endpoint. However, adding new features can become prohibitively difficult. So developers can end up building another gateway to solve a specific problem.We've been building our gateway based on LiteLLM since 2024, and now it's providing services for thousands of orgs. Each org needs different API key settings, routes, and limits. To support that, we kept wrapping LiteLLM, adding more features to it…