Memory Layer
Memory Layer: An auditable memory backend with scored atoms, semantic retrieval, and MCP connectivity. Ranked #19 of 34 in AI Agent Memory Tools by our editors (6.3/10); pricing: Free plan; best for developers wanting auditable atom-based memory.
At a glance
- Editor score6.3 / 10
- PricingFree plan
- Best forDevelopers wanting auditable atom-based memory
- Free planYes
- Paid fromNone
- Semantic memoryYes
- Facts checked13 Oct 2026
Where it wins
- Scored, reconciled memory atoms with confidence and lifecycle fields
- Semantic search, explicit links, and 1–3 hop related-memory traversal
- MCP transports plus integrations for Claude, ChatGPT, Gemini, and more
Where it doesn't
- Semantic retrieval depends on PostgreSQL, embeddings, and pgvector
- Support channels are documentation and community resources
- MCP-oriented workflows may not suit non-MCP agent stacks
Our verdict on Memory Layer
Memory Layer is an open-source backend for AI assistants and MCP-compatible models. It stores persistent, structured memory atoms in PostgreSQL, retrieves them through embedding-based semantic search, and exposes tools over stdio and SSE/HTTP transports. Developers can deploy it in the cloud or self-host it, while the hosted Synapse application adds brain, discussions, graph, feed, and administration views. Its combination of semantic, episodic, profile, and graph memory suits solo developers and small to mid-market teams building assistants that need durable context.
The standout capability is the write pipeline: memory entries can pass through scoring, reconciliation, critic review, conflict handling, risk gating, and post-turn reflection. Each atom carries confidence, importance, visibility, and lifecycle status fields, giving teams a structured way to inspect and govern what an assistant retains. Explicit atom linking and 1–3 hop traversal support related-memory exploration, while session task-context snapshots preserve project, model, and task history. These controls make Memory Layer a fit when auditability matters more than a minimal key-value store.
Platform coverage centers on MCP: Claude Desktop, Claude Code, VS Code, ChatGPT, Gemini, Grok, and a Node.js/npm bridge are listed integrations. Docker-based self-hosting provides deployment control, and the project also offers a hosted web application. Teams should plan around PostgreSQL, embeddings, and pgvector for semantic retrieval, and around documentation and community support channels. Choose Memory Layer for transparent, linkable memory with flexible deployment; consider another option if your agents do not use MCP or you need a broader native connector ecosystem.
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Memory Layer pricing
Memory Layer fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Semantic memory | Yes |
| Episodic memory | Yes |
| User/profile memory | Yes |
| Graph-based memory | Yes |
| Deployment options | Both |
| SDK languages | 2 |
| Retention policy | Indefinite |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Windows, Linux |
| Support | Docs, Community |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 7 integrations: Claude Desktop, Claude Code, VS Code, ChatGPT, Gemini, Grok … |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 13 Oct 2026 |
Memory Layer integrations
Memory Layer lists 7 integrations on its own site.
- Claude Desktop
- Claude Code
- VS Code
- ChatGPT
- Gemini
- Grok
- Node.js/npm MCP bridge
Alternatives to Memory Layer
- Cloudflare Agent MemoryA cloud API for scoped, searchable memory across AI agent profiles and conversations.9.2
- Mem0A flexible memory layer with semantic, graph, and self-hosted deployment options.8.8
- MCP Memory ServiceA broad open-source memory layer for teams that can manage deployment and configuration.7.9
See all Memory Layer alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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