Agent memory with git-like version control. Custom LLMs turn conversations into structured facts with automatic conflict detection - your agent sees
Memstate AI MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. Agent memory with git-like version control. Custom LLMs turn conversations into structured facts with automatic conflict detection - your agent sees how decisions evolved, not four contradictory text blobs. 80% token reduction vs RAG/graph.
Other memory systems dump everything into your context window and hope for the best. Memstate gives your agent a structured, versioned knowledge base it navigates precisely — load only what you need, know what changed, know when facts conflict.
Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
Once Memstate AI is connected, these are the calls the assistant has available:
memstate_remember — Store markdown, task summaries, decisions. Server extracts keypaths and detects conflicts automatically. Use for most writes.memstate_set — Set a single keypath to a short value (e.g. config.port = 8080). Not for prosememstate_get — Browse all memories for a project or subtree. Use at the start of every task.memstate_search — Semantic search by meaning when you don't know the exact keypathmemstate_history — See how a piece of knowledge changed over time — full version chainmemstate_delete — Soft-delete a keypath. Creates a tombstone; full history is preservedmemstate_delete_project — Soft-delete an entire project and all its memoriesCursor — In Cursor Settings → MCP → Add Server — same JSON format as Claude Desktop aboveYou will need 2 environment variables: MEMSTATE_API_KEY, MEMSTATE_MCP_URL. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
This sits in the planning and project tracking group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Memstate AI's toolset — memstate_remember, memstate_set, memstate_get and 5 more — is a fair guide to whether it matches your workflow.
This entry was verified against Memstate AI's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| memstate_remember | Store markdown, task summaries, decisions. Server extracts keypaths and detects conflicts automatically. **Use for most writes.** |
| memstate_set | Set a single keypath to a short value (e.g. config.port = 8080). Not for prose. |
| memstate_get | Browse all memories for a project or subtree. **Use at the start of every task.** |
| memstate_search | Semantic search by meaning when you don't know the exact keypath. |
| memstate_history | See how a piece of knowledge changed over time — full version chain. |
| memstate_delete | Soft-delete a keypath. Creates a tombstone; full history is preserved. |
| memstate_delete_project | Soft-delete an entire project and all its memories. |
| Cursor | In Cursor Settings → MCP → Add Server — same JSON format as Claude Desktop above. |
{
"mcpServers": {
"memstate": {
"command": "npx",
"args": ["-y", "@memstate/mcp"],
"env": {
"MEMSTATE_API_KEY": "YOUR_API_KEY_HERE"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| MEMSTATE_API_KEY | Credential the server authenticates with. | Yes |
| MEMSTATE_MCP_URL | Endpoint or connection string the server talks to. | Yes |
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