Memory (reference)
A simple knowledge-graph memory the agent can add to and search across sessions, stored in a local JSON file.
Saved a code in one session and recalled it in a fresh session in both Claude Code and Cursor (3 calls in total), using one local JSON file with no network or account. Context-mode also passed recall in both (4 calls) but needs Node 22.5+. Sequential Thinking passed its reasoning task in both, but it has no storage, so it isn't judged on recall. On Oct 14 Memory and context-mode also passed recall in Claude Desktop and ChatGPT (Codex); in Claude Desktop, Memory also listed older codes left in the shared test file by earlier runs.
Test results
Last passed 2026-10-14Install
claude mcp add memory -e MEMORY_FILE_PATH=/path/to/dir/memory.jsonl -- npx -y @modelcontextprotocol/server-memoryRun in your terminal. This exact command is what our harness runs in Claude Code; see the results above.
{
"mcpServers": {
"memory": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-memory"
],
"env": {
"MEMORY_FILE_PATH": "/path/to/dir/memory.jsonl"
}
}
}
}Save as .cursor/mcp.json. This exact config is what our harness runs in Cursor; see the results above.
{
"mcpServers": {
"memory": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-memory"
],
"env": {
"MEMORY_FILE_PATH": "/path/to/dir/memory.jsonl"
}
}
}
}Add to claude_desktop_config.json and restart Claude Desktop. Tested on the Linux beta; see the results above.
[mcp_servers.memory]
command = "npx"
args = ["-y", "@modelcontextprotocol/server-memory"]
env = { MEMORY_FILE_PATH = "/path/to/dir/memory.jsonl" }Add to ~/.codex/config.toml (shared by the ChatGPT (Codex) CLI and the ChatGPT desktop app; Codex runs inside the ChatGPT desktop app). Tested with the ChatGPT (Codex) CLI bundled in the ChatGPT desktop app; see the results above.
Not connecting? Troubleshooting: Claude Code · Cursor · Claude Desktop · ChatGPT (Codex)
Test history
| Date | Check | Result | Version |
|---|---|---|---|
| 2026-10-13 | Protocol (direct stdio) | Protocol: 9 tools + tool call OK | 1.0.0 |
| 2026-10-13 | Claude Code | Passed install, connect, tools, agent task | 2.1.296 (Claude Code) |
| 2026-10-13 | Cursor | Passed install, connect, tools, agent task | 2026.10.12-d47ca18 |
| 2026-10-14 | Claude Desktop | Passed install, connect, tools, agent task | Claude Desktop 2.37337.1 (Linu |
| 2026-10-14 | ChatGPT (Codex) | Passed install, connect, tools, agent task | codex-cli 0.162.0-alpha.17.2 |
Tools seen by our harness (9)
create_entitiescreate_relationsadd_observationsdelete_entitiesdelete_observationsdelete_relationsread_graphsearch_nodesopen_nodes