Give your AI agents
a memory.
A local-first knowledge base with semantic search. Built for agents, scripts, and developers who think in pipes.
Why agents need this
AI agents are powerful but amnesiac. Tentacle is the missing memory layer.
Semantic Search
Find by meaning, not keywords. Your agents stop guessing and start knowing. Query 'auth architecture decisions' and get docs about JWT, OAuth, sessions — even if they never use those exact words.
Machine-Readable Output
Every command outputs --json. Built for scripts, pipelines, and agents from day one. No parsing, no scraping, no fragile regex — just clean structured data your agent can consume directly.
RAG Without Infrastructure
No Pinecone. No Docker. No vector database server. Just a single Rust binary and your documents. Local embeddings, SQLite storage, sub-60-second setup. Your laptop is enough.
Why devs switch
Tentacle CLI vs DIY vector stack
| Dimension | Tentacle CLI | Traditional setup |
|---|---|---|
| Setup time | ~30–60 seconds | Hours to days |
| Infrastructure needed | None (single binary + SQLite) | Vector DB, services, credentials |
| Data privacy | Local-first, stays on your machine | Often sent to third-party infra |
| Cost | Free, open-source (optional OpenAI API for auto-tagging) | Usage + infrastructure costs |
The CLI is just the beginning.
Tentacle Pro is a full desktop app — voice capture, RAG chat, and cloud sync. Built for people who think out loud and need to find it later.
Free beta · First 500 users get 3 months of Pro
Works with any agent
Tentacle speaks shell. If your agent can run a command or read JSON, it has persistent memory.
#!/bin/bash
# OpenClaw skill: query Tentacle knowledge base
# Called by agent with: $QUERY argument
QUERY="$1"
# Semantic search, return top 3 results as JSON
tentacle search "$QUERY" --limit 3 --json \
| jq '{
results: .results | map({
title: .title,
content: .content,
relevance: .score
})
}'The pattern: tentacle search "…" --json → jq → your LLM
Try it in 30 seconds.
Paste once, run once, and your agent gets persistent memory instantly.
Choose your platform
Free forever. Open source (MIT). No telemetry. No accounts.