Memory Nexus MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 52 installs a week from npm. Last commit 11 Feb 2026.
Persistent semantic memory for AI agents with knowledge graphs and Intelligence Packs.
Today is the operative word: we check Memory Nexus MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add memory-nexus-mcp -- npx -y @memory-nexus/mcp
{
"mcpServers": {
"memory-nexus-mcp": {
"args": [
"-y",
"@memory-nexus/mcp"
],
"command": "npx"
}
}
}
[mcp_servers.memory-nexus-mcp]
command = "npx"
args = ["-y", "@memory-nexus/mcp"]
{
"mcpServers": {
"memory-nexus-mcp": {
"args": [
"-y",
"@memory-nexus/mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"memory-nexus-mcp": {
"args": [
"-y",
"@memory-nexus/mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
NEXUS_API_KEY (API key for Memory Nexus).
The author declared them in the registry entry; get the values from the project itself.
Persistent semantic memory for AI agents with knowledge graphs and Intelligence Packs.
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Web intelligence, verified B2B contacts, and a persistent knowledge graph for AI agents.
Answers built from our own checks of this server.