OrcaReplay alternatives

Continuum-AI-Corp/OrcaReplay (454 stars, +158 this week): OrcaReplay — Time travel for AI agents. Record, replay, fork, and debug any agent run with any model. Built by the OrcaRouter.ai team.

Below are 12 other LLM tooling repos tracked by OSS Radar that share at least two GitHub topics about what they do with OrcaReplay (platform, language and framework tags don't count), ordered by how closely their topics overlap (rarer shared topics count more), 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. Langfuselangfuse/langfuse

   +298/wk

   Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.

   37k stars · TypeScript · shared topics: LLM, LLM evaluation, LLM observability, observability, OpenAI · Langfuse alternatives

2. 2. Opikcomet-ml/opik

   +160/wk

   Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations…

   23k stars · Python · shared topics: LLM, LLM evaluation, LLM observability, OpenAI · Opik alternatives

3. 3. antiglaudesksarvesh007/antiglaude

   +159/wk

   Production compatibility gateway bridge & observability platform connecting Claude Code CLI with Google Antigravity & Gemini inference…

   159 stars · Python · shared topics: AI agents, Anthropic, observability · antiglaude alternatives

4. 4. TracekitCygnux-Labs/Tracekit

   +240/wk

   Tamper-evident tracing, policy gates and cross-checks for AI agents: see what the agent did, and why.

   600 stars · Python · shared topics: AI agents, LLM, MCP, observability · Tracekit alternatives

5. 5. Headroomheadroomlabs-ai/headroom

   +548/wk

   Compress tool outputs, logs, files, and RAG chunks before they reach the LLM.

   79k stars · Python · shared topics: Anthropic, LLM, MCP, OpenAI · Headroom alternatives

6. 6. OmniRoutecheaper-inference/OmniRoute

   +1.9k/wk

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

   86k stars · TypeScript · shared topics: AI agents, Anthropic, MCP, OpenAI · OmniRoute alternatives

7. 7. system_prompts_leaksasgeirtj/system_prompts_leaks

   +423/wk

   Leaked system prompts of ChatGPT, Claude, Gemini and more. The hidden system prompt of every popular chatbot, in full, every version since…

   71k stars · Python · shared topics: AI agents, Anthropic, LLM, OpenAI · system_prompts_leaks alternatives

8. 8. 9routerdecolua/9router

   +308/wk

   Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers.

   32k stars · JavaScript · shared topics: AI agents, Anthropic, LLM, OpenAI · 9router alternatives

9. 9. LibreChatLibreChat-AI/LibreChat

   +250/wk

   Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral…

   47k stars · TypeScript · shared topics: Anthropic, MCP, OpenAI · LibreChat alternatives

10. 10. LiteLLMBerriAI/litellm

    +400/wk

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

    63k stars · Python · shared topics: Anthropic, LLM, OpenAI · LiteLLM alternatives

11. 11. oh-my-openagentcode-yeongyu/oh-my-openagent

    +168/wk

    OmO: Just type "mass ulw" keyword with your prompt. Now you are the master of graph engineering.

    71k stars · TypeScript · shared topics: AI agents, Anthropic, OpenAI · oh-my-openagent alternatives

12. 12. promptfoopromptfoo/promptfoo

    +234/wk

    Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI.

    27k stars · TypeScript · shared topics: LLM, LLM evaluation · promptfoo alternatives

More: all trending LLM tooling repos · trending AI agents repos · trending Anthropic repos · trending LLM repos · trending MCP repos · compare OrcaReplay with the top 2 · alternatives to other trending repos