A side-by-side look at the Usecortex MCP and Sequential Thinking MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Usecortex MCP for knowledge & memory work over a hosted endpoint; choose Sequential Thinking for knowledge & memory as a local process. You can also run both side by side in one mcpServers block.
query_knowledge, list_topics, add_knowledge.create_entities, create_relations, add_observations.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Knowledge & Memory | Knowledge & Memory |
| Quality signal | 51/100 · Good | 90/100 · Excellent |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | Freemium | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Verified |
| GitHub stars | 1 | 91,405 |
| Directory activity | 3 views 0 installs 0 upvotes | 4 views 3 installs 0 upvotes |
| Tools | 5 | 9 |
| Full listing | View Usecortex MCP | View Sequential Thinking |
query_knowledgeAsk a natural language question and get an AI-powered answer based on your stored knowledge.list_topicsList all knowledge topics. Takes no parameters.add_knowledgeWrite new knowledge to your base. Your agent can store discoveries, decisions, or patterns it finds.get_topicRetrieve all knowledge entries for a specific topic.search_knowledgeSearch knowledge entries by keyword (text match).create_entitiesCreate multiple new entities in the knowledge graphcreate_relationsCreate multiple new relations between entities in the knowledge graph. Relations should be in active voiceadd_observationsAdd new observations to existing entities in the knowledge graphdelete_entitiesDelete multiple entities and their associated relations from the knowledge graphdelete_observationsDelete specific observations from entities in the knowledge graphdelete_relationsDelete multiple relations from the knowledge graphread_graphRead the entire knowledge graphsearch_nodesSearch for nodes in the knowledge graph based on a queryopen_nodesOpen specific nodes in the knowledge graph by their namesPaste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
{
"mcpServers": {
"darktw-usecortex-mcp": {
"url": "https://api.usecortex.net/mcp"
}
}
}
{
"mcpServers": {
"sequential-thinking": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-memory"
]
}
}
}