CLAUDE.md is a static config. Obsidian is a note-taking app. Both are clever workarounds — but neither was built to be a memory system. Here's the honest comparison.
An honest comparison of how file-based approaches measure up against a proper memory API.
| Dimension | CLAUDE.md / Obsidian | Kronvex |
|---|---|---|
| Memory retrieval | Full file injected every session | ✓ Semantic search (top-K by cosine similarity) |
| Growth | Manual edits | ✓ Auto-stores via API call |
| Multi-agent | ✕ No | ✓ Yes — isolated per agent ID |
| Multi-user (for products) | ✕ Impossible | ✓ Unlimited users via API keys |
| Search type | Keyword / none | ✓ pgvector cosine similarity |
| Context cost | Always full file (wasted tokens) | ✓ Only relevant memories |
| Recency weighting | None (all content is equal) | ✓ Built-in (sigmoid 30d inflection) |
| Access frequency | None | ✓ Log-scaled frequency scoring |
| Hosting | Local filesystem | ✓ EU cloud (Frankfurt) |
| GDPR compliance | Manual deletion | ✓ Built-in erasure, TTL, export |
| Setup time | 30 min (Obsidian) – ongoing (CLAUDE.md) | ✓ 5 minutes |
| Scale ceiling | 1 developer, 1 project | ✓ Unlimited agents & users |
These are real failure modes — not hypotheticals.
Four things Kronvex does that no markdown file can.
Kronvex stores every memory as a 1536-dimension vector embedding. Recall queries the nearest memories by cosine similarity — not keyword match. Ask "what did we decide about auth?" and get the relevant memory even if it says "JWT with 15min TTL, not session tokens".
pgvector · cosine similarity · text-embedding-3-smallEvery recalled memory is ranked by confidence = similarity × 0.6 + recency × 0.2 + frequency × 0.2. Recency uses a sigmoid with a 30-day inflection point. Frequently-accessed memories rank higher. Old, unused memories fade gracefully — no manual archival.
similarity · recency · frequencyYour CLAUDE.md works for you. Kronvex works for your users. Isolate memory per user with agent IDs, enforce quotas with API keys, run 10,000 users concurrently. The same 3 endpoints that power your dev workflow can power a multi-tenant SaaS product.
multi-tenant · REST · isolated agentsAll data stored in Supabase Frankfurt. Right to erasure is a first-class API endpoint — not a database migration you write when a user files a GDPR request. TTL-based memory expiry, data export, and DPA available.
Frankfurt · right to erasure · TTL · DPAOne approach requires you to be the memory system. The other does it for you.
# Add to CLAUDE.md manually: # - User prefers Python # - We use PostgreSQL # - Auth uses JWT (15min TTL) # - Component style: functional React # [continues for 250 more lines...] # Every session: full file injected # No search. No relevance ranking. # You edit it. You maintain it. You archive it.
import httpx # Store once, retrieve forever httpx.post( "https://api.kronvex.io/api/v1/agents/my-agent/remember", headers={"X-API-Key": "kv-..."}, json={"content": "Auth uses JWT with 15min TTL. Refresh is silent."} ) # Semantic recall — only what's relevant ctx = httpx.post( "https://api.kronvex.io/api/v1/agents/my-agent/inject-context", headers={"X-API-Key": "kv-..."}, json={"query": "authentication setup", "max_tokens": 600} ).json()["context"] # Returns only the 3 most relevant memories
Three steps. The last one is the satisfying part.
Create an account at kronvex.io/demo — you get 100 memories, 1 agent, no credit card required. Your kv-... key is ready in seconds.
Parse your CLAUDE.md into logical chunks (one fact or rule per memory), then POST each to /api/v1/agents/{id}/remember. A simple Python loop over split paragraphs is all it takes. Contact hello@kronvex.io and we'll send you a ready-to-run script.
Replace your entire CLAUDE.md with just: the Kronvex API key reference, the agent ID, and the 3 endpoint calls. Everything else is now in the API — searchable, auto-ranked, and never injected unless relevant.
inject-context to prime the context with only the relevant memories for that task.No credit card. No SDK. Just an API key and three endpoints. Migrate your CLAUDE.md content in one script.
Get your free API key →