ai-memory vs Unabyss: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of ai-memory and Unabyss — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
a
ai-memory
AkitaOnRails
Open-source, self-hosted long-term memory server that lets Claude Code, Codex, Cursor and other agent CLIs share context and hand off sessions.
Key features
- Cross-Agent Handoffs: Typed, claim-once handoffs let you continue a session in a different agent CLI.
- Automatic Capture: Lifecycle hooks record prompts, tool calls and session boundaries, sanitized before storage.
- Markdown Wiki Storage: Git-backed wiki of .md files is the source of truth, with a rebuildable derived database index.
- Multi-Mode Search: Full-text, entity and graph search plus optional vector search.
- Team Sharing: Per-project knowledge sharing with multi-user auth, per-person attribution and an audit log.
- Self-Hosted Single Binary: Rust binary or Docker server running on your laptop, homelab or LAN host.
- Zero-LLM Default: Capture and search work without an LLM API key.
- Broad Agent Support: Works with Claude Code, Codex, Cursor, Gemini CLI, OpenCode, Kiro CLI, Grok Build CLI and more.
Best for
- A developer starts a feature in Claude Code and continues it in Codex without re-explaining the project.
- A team shares project knowledge across members' coding agents with an audit trail.
- An engineer keeps memory on a homelab server so every laptop and agent sees the same context.
- A privacy-focused user runs fully local memory capture with no LLM calls or cloud service.
- A maintainer browses and edits agent memories as plain markdown in a git repository.
- A developer onboards a new agent CLI to an existing project through MCP install commands.
Unabyss
Unabyss
Self-updating universal context layer that provides segmented, persistent context to agents and LLMs via the MCP connector protocol.
Key features
- Self-Updating Context Layer: Continuously ingests and refreshes relevant documents, events, and interaction history so connected agents always receive current context without manual updates.
- MCP-Native Connector: Exposes context through the MCP connector protocol, enabling any MCP-capable agent or LLM to request and consume the same shared context surface.
- Segmented Access Controls: Context is segmented by default to enforce boundaries between projects, users, or data classes, reducing accidental exposure of private information.
- Persistent Cross-Session Memory: Stores and surfaces long-lived context across sessions, addressing short-lived model memory and improving multi-step task continuity.
- Automatic Context Prioritization: Selects and supplies the most relevant context for a given prompt or agent task, reducing prompt size and minimizing irrelevant data sent to models.
- Agent-Agnostic Integration: Works with multiple agents and LLM backends (via MCP), allowing teams to centralize context management without coupling to a single model provider.
- Persistent, session-spanning context storage to address short-term memory limits
- Self-updating context that automatically evolves without manual prompt engineering
- MCP-native connectivity to expose context to any MCP-compatible agent or LLM
- Default segmentation of context to isolate scopes or subjects
- Automated context refresh to keep agent inputs current across sessions
- Designed as an infrastructure layer for agent ecosystems (reduces repeated context provisioning)
Best for
- Multi-Session Agent Workflows: Enable assistants and agents to resume work across days by providing persistent project context, previous decisions, and relevant files automatically.
- Developer Tools and Code Assistants: Feed up-to-date repo context, recent commits, and issue threads to coding agents so they produce more accurate code suggestions and fewer out-of-context answers.
- Customer Support Augmentation: Supply conversation history, ticket metadata, and product docs to support agents so responses stay consistent across handoffs and follow-ups.
- Long-Running Automation: Power workflows that span hours or days (e.g., data collection, review cycles) by keeping the automation engine informed of evolving inputs and state.
- Cross-Agent Coordination: Share a canonical context layer between specialized agents (search, summarization, planner) so each agent works from the same authoritative source.
- Privacy-Aware Context Sharing: Use segmentation and access controls to ensure only authorized agents see sensitive documents while still providing necessary context for tasks.
- Provide persistent memory for conversational agents to retain user state across sessions
- Supply segmented project context to multiple LLMs or assistants via MCP connectors
- Automatically refresh and surface up-to-date documents, notes, or telemetry as agent context
- Reduce prompt engineering by centralizing and serving relevant context to downstream models
- Integrate with multi-agent workflows to share and isolate context between agents