PiePiper gives Claude, ChatGPT, and Gemini a persistent memory that follows you across conversations and across assistants. Local-first. Privacy by design. Strong, openly-documented results on public memory benchmarks.
No credit card. Runs on your machine. Cancel any time.
Every time you start a new chat with Claude or ChatGPT, your assistant starts from zero. Your preferences, your context, your decisions — all gone. You re-explain, every single time.
PiePiper sits between you and your AI. It captures what matters, recalls it when relevant, and lets you forget what you don't want kept. Your memory belongs to you, not to OpenAI or Anthropic.
PiePiper installs as a local service. It connects to your AI clients through the open MCP standard. Your conversations stay on your computer.
As you chat with Claude, ChatGPT, or Gemini, PiePiper observes the conversation through MCP and identifies durable facts, preferences, decisions, and context worth keeping.
Memory is stored locally with semantic embeddings, full-text indexes, temporal anchors, and reconsolidation. When you correct or update a memory, the original updates rather than just appending a new note.
When relevance matches your current question, PiePiper surfaces just enough context to your AI. You see exactly which memory is being used and where it came from, and can forget anything with one click.
Independent academic benchmarks that test real long-term conversational memory. These are our own runs — we publish the raw numbers and the exact configs that produced them.
Combined average is the simple mean of LongMemEval and LoCoMo. PiePiper numbers are our own runs with the configuration we publish; other systems' numbers are their own published figures. Judges and harnesses differ between systems, so this is a directional comparison, not a same-harness benchmark.
Sources: Hindsight benchmarks, LongMemEval paper, LoCoMo project, OMEGA benchmarks, Mastra OM. Updated 2026-05-02.
One memory layer for Claude, ChatGPT, Gemini, Perplexity, and any MCP-compatible assistant. Switch tools without losing context.
Your memory lives in a SQLite database on your machine. Nothing is uploaded unless you opt in to encrypted multi-device sync.
Reconsolidation, interference, and decay — the things real memory systems do. When you correct a fact, the memory updates rather than stacking up contradictions.
Every memory has a source. Click any recalled fact to see the original conversation, the date, the AI that produced it.
Forget anything by topic, person, or time-range. PiePiper handles the cascade: related entries, derived summaries, embeddings — all gone.
Real memory updates when corrected, fades when unused, and reinforces when accessed. PiePiper actively models these memory dynamics rather than treating memory as static append-only storage.
No credit card to start. Cancel anytime. Local data stays yours forever.
Full access to PiePiper Personal for 30 days. No credit card required.
No credit card. No auto-bill. Just install.
Everything in the free trial, plus encrypted multi-device sync and unlimited memory history.
Cancel any time, keep your local data.
Team memory pools, SSO, audit logs, custom retention policies, and dedicated support for engineering teams running multiple AIs.
Get early access when it launches.
No. PiePiper stores everything in a SQLite database on your machine. The paid Personal tier offers optional encrypted sync between your own devices, but even then we never see plaintext. If you want zero cloud, the free tier works forever as local-only.
Your local memory database is yours. Cancelling stops the subscription and disables cloud sync, but your data remains on your machine. We also export to JSON anytime for free.
Anything with MCP support: Claude Desktop, Claude Code, Cursor, Cline, Windsurf, Zed. ChatGPT and Gemini are added as their MCP support rolls out. The bridge layer is one config file per client.
We publish the raw configs, the run commands, and the JSON results alongside every score. LongMemEval and LoCoMo are independent academic benchmarks with public datasets and publicly-available evaluation scripts — the same scripts every other system on the leaderboard uses. You can reproduce any of our numbers.
ChatGPT's memory works only inside ChatGPT, lives on OpenAI's servers, and ends when you cancel. PiePiper works across every assistant you use, stays on your machine, and is yours to keep. We're a layer above any single provider's memory feature.
No. PiePiper is a commercial product. The architecture, the memory dynamics engine, the cross-AI integration, and the retrieval pipeline are all proprietary. Open-source memory libraries exist; we publish our own benchmark numbers and the exact configs behind them. We charge €10/month because that's what it costs to keep building and improving it.
The Business tier launches later this year with team memory pools, SSO, audit, and on-prem options. Join the waitlist if you want early access — pilot customers get input on the feature priorities.
No credit card. Local-first. Works with the AI you already use.
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