respan-gateway alternatives

respanai/respan-gateway (126 stars, +126 this week): One endpoint for every LLM vendor. Any SDK, any model, any tool. One Rust binary.

Below are 12 other LLM tooling repos tracked by OSS Radar that share at least two GitHub topics with respan-gateway, ordered by how many topics overlap, then by stars gained in the last 7 days. Topic overlap means a similar problem space, not a drop-in replacement, so check each project's README.

1. 1. eliasbiondo/antirion

   +154/wk

   ⚡ The fastest open-source AI gateway — one Rust binary with a built-in console to route, secure, budget and observe every LLM call across…

   154 stars · Rust · shared topics: ai-gateway, anthropic, llm, llm-gateway, llm-proxy, mcp, openai, rust · antirion alternatives

2. 2. BerriAI/litellm

   +424/wk

   The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails…

   62k stars · Python · shared topics: ai-gateway, anthropic, llm, llm-gateway, llmops, openai, rust · litellm alternatives

3. 3. cheaper-inference/OmniRoute

   +329/wkest.

   Never stop coding. Free MIT AI gateway: one endpoint, 375 providers (150+ free), 1,400+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek…

   79k stars · TypeScript · shared topics: ai-agents, ai-gateway, anthropic, gemini, llm-gateway, mcp, openai · OmniRoute alternatives

4. 4. trailhq/Trail-Code

   +539/wk

   Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your…

   11k stars · TypeScript · shared topics: ai-agents, anthropic, gemini, llm, mcp, openai · Trail-Code alternatives

5. 5. lidge-jun/opencodex

   +299/wk

   Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK…

   18k stars · TypeScript · shared topics: ai-gateway, anthropic, gemini, llm, llm-proxy, openai · opencodex alternatives

6. 6. CoplayDev/unity-mcp

   +289/wkest.

   Unity MCP acts as a bridge between AI assistants and your Unity Editor.

   15k stars · C# · shared topics: anthropic, gemini, llm, mcp, model-context-protocol, openai · unity-mcp alternatives

7. 7. can1357/oh-my-pi

   +616/wk

   ⌥ Coding agent with the IDE wired in. Built by Stencil Labs.

   36k stars · TypeScript · shared topics: anthropic, llm, mcp, openai, rust · oh-my-pi alternatives

8. 8. langchain-ai/langchain

   +344/wk

   The agent engineering platform.

   148k stars · Python · shared topics: ai-agents, anthropic, gemini, llm, openai · langchain alternatives

9. 9. asgeirtj/system_prompts_leaks

   +300/wk

   Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex.

   70k stars · Python · shared topics: ai-agents, anthropic, gemini, llm, openai · system_prompts_leaks alternatives

10. 10. affaan-m/ECC

    +5.5k/wk

    The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code…

    286k stars · JavaScript · shared topics: ai-agents, anthropic, llm, mcp · ECC alternatives

11. 11. Graphify-Labs/graphify

    +4.9k/wk

    Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph.

    132k stars · Python · shared topics: ai-agents, gemini, llm, mcp · graphify alternatives

12. 12. rohitg00/ai-engineering-from-scratch

    +2.4k/wk

    Learn AI Engineering! Learn it. Build it. Ship it for others.

    72k stars · Python · shared topics: ai-agents, llm, mcp, rust · ai-engineering-from-scratch alternatives

More: all trending LLM tooling repos · compare respan-gateway with the top 2 · alternatives to other trending repos