Contexta

Contexta MCP

Persistent memory & knowledge graph for your AI assistant.

Keyword + vector + graph search in a single lookup.

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What is Contexta

Contexta is a memory MCP server that remembers like a human does — by meaning, by words, and by relationships.

Most memory tools give you one flavor of recall: embedding search, a raw log, or a graph you pay extra for. Contexta fuses all three into a single query. Your agent can ask _"what did we decide about pricing with Acme last quarter?"_ and get back the right meeting, the right decision, and the people connected to it — in one round-trip.

Under the hood, Contexta indexes your notes, messages, and documents as typed entities (people, projects, decisions, meetings, tasks) and links them into a knowledge graph automatically. Every retrieval combines:

• Keyword search — exact phrases, names, IDs
• Vector search — semantic meaning across languages
• Graph traversal — follow relationships between entities

Why Contexta

• Typed entities out of the box — people, projects, decisions, meetings, tasks are first-class, not blobs of text
• Knowledge graph included — no paid tier gate on the graph layer
• Triple retrieval in one call — no need to stitch together three different memory APIs
• 30-second setup — install via Smithery, sign in with OAuth, done
• Per-user OAuth — your memory is private; the server authenticates every request individually
• Multilingual — English and Russian equally supported

Use cases

• Persistent memory for Claude, ChatGPT, and Cursor across sessions
• Long-term context for AI agents working on ongoing projects
• Personal knowledge base that actually understands who and what you mean
• Research and meeting recall without manually tagging anything

Install

Via Smithery (recommended)

One-click install from the Smithery listing — Smithery handles the OAuth flow and proxies connections through its gateway.

Manual — Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows):

{

"mcpServers": { "contexta": { "url": "https://mcp.contexta.cc/mcp" } } }

Claude will walk you through the OAuth sign-in on first use. See examples/claude-desktop.json.

Manual — Cursor

Add a new MCP server in Cursor → Settings → MCP:

• Name: Contexta
• Transport: HTTP
• URL: https://mcp.contexta.cc/mcp

See examples/cursor.json.

Manual — ChatGPT

In ChatGPT → Settings → Connectors → Add custom connector → paste https://mcp.contexta.cc/mcp. See examples/chatgpt.md for full instructions.

Authentication

Contexta uses OAuth 2.0 with dynamic client registration (RFC 7591) and PKCE. On first connection, your MCP client opens a browser window, you sign in with your Contexta account, and the client receives a per-user access token. Tokens are refreshed automatically.

No API keys, no shared credentials — every request runs as a specific user with that user's private memory.

Tools exposed

Contexta MCP exposes the following tools to your AI client (non-exhaustive):

• search — keyword + vector + graph search across your memory
• read_page — fetch a note or document by ID
• create_page — save a new memory
• update_page — edit an existing memory
• graph_search — traverse the knowledge graph
• list_tasks / create_task / update_task — task management
• list_workspaces — available workspaces
• and more — the full tool list is discovered automatically by your MCP client.

Links

• Website: contexta.cc
• App: app.contexta.cc
• Smithery: smithery.ai/servers/ai-jcce/mcp-contexta
• MCP endpoint: https://mcp.contexta.cc/mcp

License

MIT — see LICENSE.

This repository is a public showcase for the hosted Contexta MCP service. The service itself is operated by the Contexta team at mcp.contexta.cc.