The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the GrantAi Memory listing page.
Deterministic Memory for AI
Local. Private. Secure.
Website • Download • Documentation
The free edition is the full local memory engine as an MCP server: no email, no license key, no trial, and no network after the one-time model download (about 650 MB).
The installer verifies both downloads against a published SHA-256 manifest, installs under ~/.grantai/free (Windows: %LOCALAPPDATA%\GrantAi\free), and registers the server with Claude Code, Claude Desktop, Cursor, Gemini CLI and Codex where they are installed. Any other MCP client takes the same command and arguments. Homebrew: brew install solonai/grantai/grantai-free. Air-gapped installs and the full list of what runs where are on the developers page.
Every AI system today has the same flaw: it guesses instead of remembers.
RAG (Retrieval-Augmented Generation) converts your documents into vectors — numerical approximations of meaning. When you query, it returns content that is mathematically similar to your question. Similar is not the same as correct.
Ask for "HIPAA encryption penalties" and RAG returns chunks that look like compliance content. Maybe the right section. Maybe adjacent paragraphs. Maybe hallucinated ranges. You pay for every token retrieved, whether relevant or not.
This is the Retrieval Tax:
Enterprise AI spends 85% of compute on inference. Most of that is wasted on retrieving content that doesn't answer the question.
GrantAi is deterministic memory for AI agents.
Instead of similarity search, GrantAi uses direct addressing. Every piece of knowledge has a unique identifier. Retrieval is a lookup, not a search. You get the exact content you indexed — verbatim, with attribution, in milliseconds.
| RAG | GrantAi |
|---|---|
| Returns similar content | Returns the exact content |
| 10-20 chunks, hope one is right | 1-3 sentences, always right |
| Slows down as corpus grows | Milliseconds regardless of size |
| No attribution | Full audit trail |
| Approximate | Deterministic |
Result: 97% reduction in tokens sent to the LLM. Faster responses. Lower cost. No hallucination from retrieval.
Add to your Claude Desktop config (~/.config/Claude/claude_desktop_config.json):
| Platform | Method | Status |
|---|---|---|
| macOS (Apple Silicon) | Native | ✅ |
| Linux (x64) | Native | ✅ |
| Windows | Native | ✅ |
| All Platforms | Docker | ✅ |
GrantAi provides these tools to your AI:
| Tool | Description |
|---|---|
grantai_infer | Query memory for relevant context |
grantai_teach | Store content for future recall |
grantai_learn | Import files or directories |
grantai_health | Check server status |
grantai_summarize | Store session summaries |
grantai_project | Track project state |
grantai_snippet | Store code patterns |
grantai_git | Import git commit history |
grantai_capture | Save conversation turns for continuity |
Multiple agents can share knowledge through GrantAi's memory layer.
All agents read from and write to the same memory pool. No configuration needed.
Use speaker to track which agent stored what, and from_agents to filter retrieval:
speaker| Scenario | Use speaker? | Why |
|---|---|---|
| Shared knowledge base | No | All contributions equal, no filtering needed |
| Session continuity | No | Same context, just persist and retrieve |
| Research → Code handoff | Yes | Coder filters for researcher's findings only |
| Role-based trust | Yes | Security agent's input treated differently |
GrantAi works with any MCP-compatible client. Point your agents at the same GrantAi instance:
All agents using this config share the same memory volume (grantai-data).
GrantAi is built by Lawrence Grant, founder of SolonAI.
Background: Harvard, IBM, AI architecture and security work for Blackstone, Goldman Sachs, and Vanguard. Author of Mergers and Acquisitions Cybersecurity: The Framework For Maximizing Value.
Read the full case for deterministic memory: Your AI Has Amnesia. You're Paying. Blame the Architecture.
Free to try. Pricing & Terms