Respan releases open-source Rust AI gateway with plugin-based architecture

·2026.10.21 00:09

Key point

The gateway supports providers like OpenAI and Anthropic, protocols like MCP and voice, and features like PII redaction, all as plugins.

Respan launched an open-source AI gateway written in Rust, designed with a small core that dispatches events while handling all other functions via plugins.
The architecture allows developers to add custom providers, protocols (MCP, voice), and security features (PII redaction, smart routing) without modifying the core codebase.
The project was developed to replace a previous LiteLLM-based wrapper that exceeded 100,000 lines of code and suffered from maintenance issues during upgrades.
The gateway is available under MIT or Apache-2.0 licenses and is currently in pre-alpha status, with a hosted platform offering observability and unified billing.

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