# 12 open-source alternatives to OrcaReplay

[OrcaReplay](https://ossradar.net/repo/Continuum-AI-Corp/OrcaReplay) (Continuum-AI-Corp/OrcaReplay) has 454 stars and gained +158 in the last 7 days. 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 other repos tracked by OSS Radar that share 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 this week. Topic overlap means a similar problem space, not a drop-in replacement, so check each project's README. Data as of 2026-11-09T16:19:55.261Z (UTC), updated hourly. HTML page: https://ossradar.net/alternatives/Continuum-AI-Corp/OrcaReplay

## Alternatives

| # | Repo | Category | 7 days | Total stars | Shared topics | What it is |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | [Langfuse](https://ossradar.net/repo/langfuse/langfuse) (langfuse/langfuse) | LLM tooling | +298 | 37200 | LLM, LLM evaluation, LLM observability, observability, OpenAI | Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform. |
| 2 | [Opik](https://ossradar.net/repo/comet-ml/opik) (comet-ml/opik) | LLM tooling | +160 | 23285 | LLM, LLM evaluation, LLM observability, OpenAI | Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations… |
| 3 | [antiglaude](https://ossradar.net/repo/sksarvesh007/antiglaude) (sksarvesh007/antiglaude) | LLM tooling | +159 | 159 | AI agents, Anthropic, observability | Production compatibility gateway bridge & observability platform connecting Claude Code CLI with Google Antigravity & Gemini inference… |
| 4 | [Tracekit](https://ossradar.net/repo/Cygnux-Labs/Tracekit) (Cygnux-Labs/Tracekit) | LLM tooling | +240 | 600 | AI agents, LLM, MCP, observability | Tamper-evident tracing, policy gates and cross-checks for AI agents: see what the agent did, and why. |
| 5 | [Headroom](https://ossradar.net/repo/headroomlabs-ai/headroom) (headroomlabs-ai/headroom) | LLM tooling | +548 | 79216 | Anthropic, LLM, MCP, OpenAI | Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. |
| 6 | [OmniRoute](https://ossradar.net/repo/cheaper-inference/OmniRoute) (cheaper-inference/OmniRoute) | LLM tooling | +1923 | 85895 | AI agents, Anthropic, MCP, OpenAI | Never stop coding. Free MIT AI gateway: one endpoint, 375 providers (150+ free), 1,400+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek… |
| 7 | [system_prompts_leaks](https://ossradar.net/repo/asgeirtj/system_prompts_leaks) (asgeirtj/system_prompts_leaks) | LLM tooling | +423 | 71072 | AI agents, Anthropic, LLM, OpenAI | Leaked system prompts of ChatGPT, Claude, Gemini and more. The hidden system prompt of every popular chatbot, in full, every version since… |
| 8 | [9router](https://ossradar.net/repo/decolua/9router) (decolua/9router) | LLM tooling | +308 | 32168 | AI agents, Anthropic, LLM, OpenAI | Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. |
| 9 | [LibreChat](https://ossradar.net/repo/LibreChat-AI/LibreChat) (LibreChat-AI/LibreChat) | LLM tooling | +250 | 46902 | Anthropic, MCP, OpenAI | Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral… |
| 10 | [LiteLLM](https://ossradar.net/repo/BerriAI/litellm) (BerriAI/litellm) | LLM tooling | +400 | 62974 | Anthropic, LLM, OpenAI | The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails… |
| 11 | [oh-my-openagent](https://ossradar.net/repo/code-yeongyu/oh-my-openagent) (code-yeongyu/oh-my-openagent) | LLM tooling | +168 | 70799 | AI agents, Anthropic, OpenAI | OmO: Just type "mass ulw" keyword with your prompt. Now you are the master of graph engineering. |
| 12 | [promptfoo](https://ossradar.net/repo/promptfoo/promptfoo) (promptfoo/promptfoo) | LLM tooling | +234 | 26992 | LLM, LLM evaluation | Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. |

Gains marked est. are estimates for repos first seen less than a week ago. Each repo also has a Markdown page: append .md to its repo URL.

## More

- OrcaReplay repo page: https://ossradar.net/repo/Continuum-AI-Corp/OrcaReplay (Markdown: https://ossradar.net/repo/Continuum-AI-Corp/OrcaReplay.md)
- Alternatives to Langfuse: https://ossradar.net/alternatives/langfuse/langfuse.md
- Alternatives to Opik: https://ossradar.net/alternatives/comet-ml/opik.md
- Alternatives to antiglaude: https://ossradar.net/alternatives/sksarvesh007/antiglaude.md
- Alternatives to Tracekit: https://ossradar.net/alternatives/Cygnux-Labs/Tracekit.md
- Alternatives to Headroom: https://ossradar.net/alternatives/headroomlabs-ai/headroom.md
- Alternatives to OmniRoute: https://ossradar.net/alternatives/cheaper-inference/OmniRoute.md
- All trending LLM tooling repos: https://ossradar.net/category/llm-tooling.md
- Alternatives to other trending repos: https://ossradar.net/alternatives
- Live leaderboard: https://ossradar.net/ (also https://ossradar.net/llms.txt and https://ossradar.net/api/v1/trending)

Free to cite with a link back to https://ossradar.net/alternatives/Continuum-AI-Corp/OrcaReplay.