Install
Install UltraMemory — three tiers
You know the feeling: you /clear and the agent that knew your whole project five seconds ago now knows nothing. Every new session starts with re-explaining the stack, the decisions, the gotchas — again. That loss is the problem UltraMemory removes.
Three tiers, each a superset of the last. Tier 1 connects the memory tools. Tier 2 adds the recall-first hook so memory arrives on every prompt. Tier 3 installs the full Agent Kit in one line. Every tier uses the same key from your dashboard.
Tier 1 — UltraMemory (MCP)
Connect only — the memory_recall / memory_write tools, no local caching. One command registers the remote MCP server (Streamable HTTP) with your key:
claude mcp add --transport http ultramemory https://api.ultramemory.us/mcp \ --header "Authorization: Bearer YOUR_API_KEY_HERE"
Replace YOUR_API_KEY_HERE with your real um_ key, then run /mcp — you'll see ultramemory ✓ Connected.
Tier 2 — UltraMemory + Turbo Token Saver
Everything in Tier 1, plus the recall-first hook: instead of waiting for the agent to remember to check its memory, the hook injects relevant memory before every prompt — deterministic recall, not hope. A local cache plus payload tiering trims repeated recalls, so it saves tokens while it saves context.
The full three-step setup (download the hook, export your key, wire .claude/settings.json) lives on the Claude Code tab of the Quickstart →
Tier 3 — UltraMemory Agent Kit
Everything in Tier 2, plus the harness — grounding + checklist-bound execution skills, the checklist-worker / checklist-verifier subagents, and a static Stop-gate. One guided installer prompts for your key, lets you pick Tier 2 or Tier 3, wires everything, and runs an “it's working” check:
bash <(curl -fsSL https://ultramemory.io/kit.sh)
Or install through the Claude Code plugin marketplace — bundles the skills, subagents, hooks, and MCP servers in one enable (advanced / team):
/plugin marketplace add LogicLabsAI/ultramemory-mcp /plugin install ultramemory-kit@ultramemory
The kit is open source (Apache-2.0) — read every line before you run it: github.com/LogicLabsAI/ultramemory-mcp.