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Persistent memory MCP server for Claude Code — self-hosted, n8n + PostgreSQL + pgvector. No cloud required.
Not just session memory. A shared, governed memory layer for every agent, every person, and every project your team runs.
Website: zikra.dev · Self-hosted · MIT · Scales to millions of memories
Architecture: Governed project memory for teams of agents
Promotion kit: submission copy, launch posts, and directory targets
zikra 17 runs · 847 memories │ you@team-server │ Sonnet 4.6 │ ~/project (main) │ 387K/200K ████░░░░░░ 45%
claude mcp add zikra http://localhost:8000/mcp --header "Authorization: Bearer YOUR_TOKEN"
Or add to ~/.claude/settings.json:
{ "mcpServers": { "zikra": { "url": "http://localhost:8000/mcp", "headers": { "Authorization": "Bearer YOUR_TOKEN" } } } }
Don't have a server yet? → Step 1 below takes ~2 minutes.
Most AI memory tools solve one problem: one agent remembers one session better.
Zikra solves a harder problem: multiple people running multiple AI agents across multiple projects — all sharing the same memory pool, with the right person scoped to the right project, the right agent pulling the right context, and millions of memories staying fresh through built-in hygiene scoring.
It's not session memory. It's the shared brain for an AI-native team.
| What you get | What that means |
|---|---|
| Multi-agent | Claude Code, Gemini CLI, Codex — one pool, one token |
| Multi-person | Owner / admin / dev / viewer roles per project |
| Multi-project | Isolated namespaces; one team runs veltisai, design, global |
| Scale | PostgreSQL backend — handles millions of memories without index rebuilds |
| Memory hygiene | Built-in hygiene prompt: confidence decay, orphan detection, stale cleanup |
| Structure | Not just "save text" — decisions, requirements, prompts, errors, session diaries |
| Auto-save | Stop + PreCompact hooks write every session automatically |
— Mukarram
| Zikra | MCP Memory¹ | mem0 | basic-memory | MemoryMesh | |
|---|---|---|---|---|---|
| Works across multiple AI tools | ✅ | ❌ | ✅ paid | ❌ | ❌ |
| Team sharing with per-user roles | ✅ RBAC | ❌ | ✅ paid | ❌ | ❌ |
| Multi-project namespacing | ✅ | ❌ | ✅ paid | ❌ | ❌ |
| Self-hosted, zero cloud dependency | ✅ | ✅ | ❌ | ✅ | ✅ |
| Auto-save via session hooks | ✅ | ❌ | ❌ | ❌ | ❌ |
| Hybrid vector + keyword search | ✅ | ❌ graph only | ✅ | ❌ | ❌ |
| Confidence decay / memory hygiene | ✅ built-in prompt | ❌ | ❌ | ❌ | ❌ |
| Named prompts + requirements | ✅ | ❌ | ❌ | ❌ | ❌ |
| Scales to millions of memories | ✅ Postgres | ❌ in-memory | ✅ cloud | ❌ | ❌ |
| License | MIT | MIT | Proprietary | MIT | MIT |
¹ @modelcontextprotocol/server-memory — the official Anthropic reference server.
git clone https://github.com/getzikra/zikra
cd zikra
python3 -m venv .venv
source .venv/bin/activate # Windows: .venv\Scripts\activate
pip install -e .
python3 installer.py # interactive setup, ~2 minutes
python3 -m zikra
The installer creates a .env file and generates your admin token. The server binds to http://localhost:8000 by default.
To reach it from other machines, run
cloudflared tunnel --url http://localhost:8000(free, gives you a permanent public URL likehttps://zikra.yourteam.com).
Open Claude Code → Settings → MCP → Add Server and paste:
{
"mcpServers": {
"zikra": {
"url": "http://your-server:8000/mcp",
"headers": { "Authorization": "Bearer YOUR_ZIKRA_TOKEN" }
}
}
}
The installer does this automatically when run locally.
Paste the prompt for your agent into a session. It handles both first install and updates.
Claude Code:
Fetch https://raw.githubusercontent.com/GetZikra/zikra/main/prompts/zikra-claude-code-setup.md
and follow every instruction in it.
This installs the Stop hook (auto-saves every session), PreCompact hook, and the live statusline bar showing run counts and memory stats.
Server:
cd ~/zikra && ./update.sh
Claude Code hooks — re-run the onboarding prompt. It detects your existing install and only refreshes what changed.
| Profile | Storage | Hooks | Extra deps |
|---|---|---|---|
| Webhook (default) | SQLite ¹ | none | none |
| Auto-log | SQLite ¹ | session hooks | none |
| Full | SQLite ¹ or Postgres | hooks + daemon | asyncpg (Postgres only) |
¹ SQLite is for local / single-user only. For team deployments set DB_BACKEND=postgres.
| Variable | Required | Default | Description |
|---|---|---|---|
ZIKRA_TOKEN | Yes | generated | Bearer token for the API |
OPENAI_API_KEY | No | — | Enables semantic search. Keyword-only if absent. |
DB_BACKEND | No | sqlite | sqlite or postgres |
DB_HOST | Postgres only | localhost | |
DB_PORT | Postgres only | 5432 | |
DB_NAME | Postgres only | — | |
DB_USER | Postgres only | — | |
DB_PASSWORD | Postgres only | — | |
ZIKRA_HOST | No | 0.0.0.0 | Bind address |
ZIKRA_PORT | No | 8000 | HTTP port |
ZIKRA_DB_PATH | No | ./zikra.db | SQLite database path |
ZIKRA_PROJECT | No | main | Default project |
OPENAI_API_BASE | No | https://api.openai.com/v1 | Swap for local or compatible embedding endpoint |
ZIKRA_EMBEDDING_MODEL | No | text-embedding-3-small | Embedding model name |
ZIKRA_DECAY_DAYS | No | 30 | Memory half-life in days |
ZIKRA_FREQUENCY_WEIGHT | No | 0.1 | Access-frequency boost weight |
Every search result passes through scoring:
confidence_score rank lower.All commands are POST /webhook/zikra with Authorization: Bearer <token>.
| Command | Aliases | Description |
|---|---|---|
search | find, query, recall | Hybrid semantic + keyword search |
save_memory | save, store | Save a memory with embedding |
get_memory | fetch_memory | Retrieve by title or id |
get_prompt | fetch_prompt | Retrieve a named prompt |
log_run | log_session | Log a completed agent run |
log_error | log_bug | Log an error |
save_requirement | — | Save a project requirement |
save_prompt | write_prompt | Save a prompt with embedding |
list_prompts | get_prompts | List prompts for a project |
list_requirements | list_reqs | List requirements |
promote_requirement | promote | Change a requirement's type |
create_token | new_token | Generate a bearer token (owner role) |
get_schema | schema | DB DDL introspection |
zikra_help | help | Full command reference |
debug_protocol | — | Backend diagnostics |
Roles: owner · admin · developer · viewer
DB_BACKEND=postgres
DB_HOST=localhost
DB_PORT=5432
DB_NAME=ai_zikra
DB_USER=postgres
DB_PASSWORD=yourpassword
pip install -e ".[postgres]"
MIT — see LICENSE
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