About memory
Velixar is a persistent memory MCP server for AI assistants, designed for users who need continuity across sessions. It combines memory search with identity, belief tracking, contradiction detection, and a knowledge graph.
Key features
- 01Store and search persistent memories
- 02Build and traverse a knowledge graph
- 03Track identity and evolving beliefs
- 04Detect contradictions and recurring patterns
- 05Distill sessions and manage memory imports
Use cases
- 01Restore context from a previous session
- 02Find relationships between remembered entities
- 03Review conflicting beliefs over time
- 04Back up or migrate a memory corpus
MCP support
It exposes memory and reasoning tools, live resources, and workflow prompts to MCP clients. The server works with clients including Claude Desktop, Kiro, Cursor, Windsurf, and Continue.dev.
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
npx -y velixar-mcp-serverVELIXAR_API_KEYSecretYour Velixar API key (get one free at velixarai.com)Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.
Tools
5Saved tool list · updated 2w ago
| Parameter | Type | Required | Description |
|---|---|---|---|
| tags | array | No | Optional tags for categorization |
| tier | number | No | Memory tier: 0=pinned, 1=session, 2=semantic (default), 3=org |
| content | string | Yes | The memory content to store |
Details
From the project READMEVelixar MCP Server
The first cognitive memory server for AI assistants. Not a vector database wrapper — a full reasoning layer that gives your AI persistent memory, a knowledge graph, identity awareness, contradiction detection, and belief tracking across every session.
Works with any Model Context Protocol client: Claude Desktop, Kiro, Cursor, Windsurf, Continue.dev, or custom hosts.
Why This Exists
Every AI assistant starts from zero every conversation. Velixar fixes that — but not by just storing and retrieving text. The MCP server gives your assistant the ability to:
- Orient itself in a workspace with a single call — no manual context assembly
- Track how beliefs evolve over time and surface when they contradict
- Build and traverse a knowledge graph of entities and relationships it discovers
- Maintain a persistent identity model of who you are, what you prefer, and how you work
- Distill sessions into durable memories automatically, with deduplication
- Import and export your entire memory corpus for backup or migration
40 tools. 5 live resources. 19 workflow prompts. One npm install.
Quick Start
npm install -g velixar-mcp-server
Get an API key at velixarai.com/settings/api-keys, then add to your MCP client:
{
"mcpServers": {
"velixar": {
"command": "velixar-mcp-server",
"env": {
"VELIXAR_API_KEY": "vlx_your_key_here"
}
}
}
}
Restart your assistant. Done.
Tool Surface
Memory
| Tool | What it does |
|---|---|
velixar_store | Store a memory with tags, tier, and type |
velixar_search | Semantic search across all memories |
velixar_list | Browse with pagination and filtering |
velixar_update | Edit content or tags on an existing memory |
velixar_delete | Remove a memory |
Cognitive
| Tool | What it does |
|---|---|
velixar_context | Synthesized workspace briefing — orientation in one call |
velixar_identity | Get, store, or update the user's profile, preferences, and expertise |
velixar_contradictions | Surface conflicting facts or beliefs with resolution guidance |
velixar_timeline | How a topic or belief evolved over time |
velixar_patterns | Recurring problem/solution motifs across your history |
velixar_inspect | Deep inspection of a specific memory with full provenance chain |
velixar_graph_traverse | Walk entity relationships — "what connects to X?" |
velixar_distill | Extract durable memories from session content with deduplication |
Lifecycle
| Tool | What it does |
|---|---|
velixar_session_save | Save a session summary for later recall |
velixar_session_recall | Restore context from a previous session |
velixar_batch_store | Store up to 20 memories in one call |
velixar_batch_search | Run up to 10 search queries simultaneously |
velixar_consolidate | Merge related memories into a single durable memory |
velixar_retag | Bulk update tags across memories |
velixar_export | Export memories as JSON or Markdown, optionally with graph data |
velixar_import | Bulk import from JSON, Markdown, Notion, or Obsidian exports |
System
| Tool | What it does |
|---|---|
velixar_health | Backend connectivity, latency, workspace status |
velixar_debug | Cache state, circuit breaker, API timings |
velixar_capabilities | Feature list, tool inventory, resource URIs |
velixar_security | Get or set content scanning mode |
Live Resources
Resources are injected into your assistant's context automatically — no tool call needed.
| Resource | What it provides |
|---|---|
velixar://system/constitution | Behavioral rules and cognitive modes for the assistant |
velixar://identity/current | Your persistent user profile |
velixar://memories/recent | Most recent memories (compact) |
velixar://memories/relevant | Contextually relevant memories based on current activity |
velixar://domains/{domain}/shadow_graph | Knowledge graph view for a specific domain |
Workflow Prompts
16 built-in prompts that guide multi-step reasoning workflows:
- Orientation — recall prior reasoning, build project context, profile an entity, orient-then-narrow
- Conflict — resolve contradictions, identify knowledge gaps
- Continuity — trace belief evolution, resume sessions, reconstruct decision paths
- Lifecycle — distill sessions, consolidate topic memory, retag recent memories
- Identity — summarize user identity, detect preference shifts, align response style
- Enterprise — evaluate enterprise fit for a domain
Workspace Isolation
Memories are scoped to workspaces. Your personal project never bleeds into work.
| Priority | Source | How |
|---|---|---|
| 1 | VELIXAR_WORKSPACE_ID env var | Explicit |
| 2 | .velixar.json in project root | { "workspace_id": "my-project" } |
| 3 | Git root directory name | Automatic |
Host Compatibility
| Host | Tools | Resources | Prompts |
|---|---|---|---|
| Kiro CLI | ✅ | ✅ | ✅ |
| Claude Desktop | ✅ | ✅ | ✅ |
| Cursor | ✅ | ⚠️ | — |
| Windsurf | ✅ | ⚠️ | — |
| Continue.dev | ✅ | ✅ | ✅ |
When a host doesn't support resources or prompts, the server degrades gracefully — all tools still work independently.
Environment Variables
| Variable | Required | Description |
|---|---|---|
VELIXAR_API_KEY | Yes | Your API key (starts with vlx_) |
VELIXAR_WORKSPACE_ID | No | Explicit workspace scope |
VELIXAR_API_URL | No | Custom API endpoint |
VELIXAR_USER_ID | No | Explicit end-user identity. Leave unset (recommended): the API derives scope from your key — you see your own memories, same as the dashboard. Set it only when one key serves multiple named end users |
VELIXAR_DEBUG | No | true for verbose logging |
VELIXAR_LOG_FORMAT | No | json for structured Datadog/CloudWatch logging |
VELIXAR_HEALTH_PORT | No | Port for HTTP health check endpoint |
Reliability
- Automatic retry with exponential backoff (3 attempts)
- Circuit breaker — opens after sustained failures, auto-recovers
- Cache fallback — serves stale data during outages rather than failing
- Structured logging compatible with Datadog and CloudWatch
SDKs
Use Velixar directly from code:
CI/CD Integration
- GitHub Actions: velixar-memory-sync — distill PR merges into memories
- GitHub Actions: velixar-decision-capture — store issue resolutions as decisions
- Webhook:
POST /webhook/ci— generic CI event ingestion
License
MIT
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.