# OrcaReplay — AI Coding Tool Review & Pricing

> OrcaReplay is an open-source record-and-replay engine that allows developers to capture, debug, and fork AI agent executions. It operates as a local proxy to record model calls, shell commands, and filesystem changes, enabling users to reproduce agent behavior byte-for-byte or test different models from any execution step.

Source: https://ai.dosa.dev/tools/orcareplay · Updated Oct 15, 2026 · Category: Developer Productivity & Workflow · Published by dosa.dev

## At a glance

- **Tool**: OrcaReplay
- **Company**: Continuum AI
- **Category**: [Developer Productivity & Workflow](https://ai.dosa.dev/category/productivity)
- **Pricing model**: Open Source
- **Official website**: https://github.com/Continuum-AI-Corp/OrcaReplay

## Key features

- Deterministic offline replay with egress blocked
- Cross-model forking from any execution checkpoint
- Capture of shell operations, file changes, and MCP traffic
- No-patch integration via environment variables and local proxy
- Causal graph visualization of agent decisions

## Pricing

**Model**: Open Source

OrcaReplay is free and open-source (Apache-2.0). It does not have paid tiers; however, live model comparisons and forks initiated via the tool may incur standard API usage costs from the AI providers.

## Who it is for

- **Best for**: Debugging complex, multi-step AI agent workflows and performing fair model comparisons on identical execution paths.
- **Not ideal for**: Sandboxing untrusted code, as the tool executes recorded tool calls for real, or capturing interactive terminal sessions where user input is not captured on the wire.

## Verdict

OrcaReplay is a powerful, developer-focused observability tool that provides time-travel debugging for AI agents, effectively bridging the gap between high-level logs and granular machine behavior.

## Recent updates

Launched on September 1, 2026, the tool introduced ongoing support for major coding agents including Claude Code, Codex, and Hermes, along with TLS interception capabilities for opaque API traffic.

## Frequently asked questions

### Is OrcaReplay free?

Yes - OrcaReplay is Open Source. OrcaReplay is free and open-source (Apache-2.0). It does not have paid tiers; however, live model comparisons and forks initiated via the tool may incur standard API usage costs from the AI providers.

### Is OrcaReplay open source?

Yes - OrcaReplay is open source. OrcaReplay is free and open-source (Apache-2.0). It does not have paid tiers; however, live model comparisons and forks initiated via the tool may incur standard API usage costs from the AI providers.

### Who is OrcaReplay best for?

Debugging complex, multi-step AI agent workflows and performing fair model comparisons on identical execution paths.

### Who is OrcaReplay not ideal for?

Sandboxing untrusted code, as the tool executes recorded tool calls for real, or capturing interactive terminal sessions where user input is not captured on the wire.

### What are the best OrcaReplay alternatives?

The closest OrcaReplay alternatives on ai.dosa.dev are Pieces for Developers, agenttrace, Vibe Kanban - all listed under Developer Productivity & Workflow.

### Who makes OrcaReplay?

OrcaReplay is developed by Continuum AI. It is listed in the Developer Productivity & Workflow category on ai.dosa.dev.

## Top alternatives

- [Pieces for Developers](https://ai.dosa.dev/tools/pieces-for-developers) (Freemium) — Developers and teams who need to manage disparate workflow context, revisit past coding decisions, and maintain consistent documentation across multiple tools and projects.
- [agenttrace](https://ai.dosa.dev/tools/agenttrace) (Open Source) — Developers who need a privacy-conscious way to audit, monitor, and diagnose the behavior, costs, and performance of various AI coding agents locally.
- [Vibe Kanban](https://ai.dosa.dev/tools/vibe-kanban) (Free) — Solo developers and individual power users who need to run multiple AI coding agents in parallel while managing separate git worktrees and tasks locally.
- [ai-memory](https://ai.dosa.dev/tools/ai-memory) (Open Source) — Developers who frequently switch between multiple AI coding agents or machines and want a unified, persistent knowledge base that survives session ends and tool switches.
- [smolvm](https://ai.dosa.dev/tools/smolvm) (Open Source) — Running untrusted code, powering coding agents with persistent/resettable workspaces, and deploying portable VM-based workloads that require a real Linux kernel.
- [coop](https://ai.dosa.dev/tools/coop) (Open Source) — Security-conscious developers who want to run autonomous coding agents on real projects without risking host machine compromise.
- Full alternatives guide: https://ai.dosa.dev/tools/orcareplay/alternatives