Tokencrumbs is the user-owned memory layer between AI providers. Export from any. Import to any. You hold the source of truth — not OpenAI, not Anthropic, not Google.
AI assistants increasingly remember things about you. That's useful. It's also a quiet capture mechanism — and most of it is invisible.
You don't know what your assistant has stored, why a response feels personalized, or which memories shaped which answer. When the model gets something weirdly wrong, there's no trail to inspect.
What ChatGPT learns about you stays in ChatGPT. Switching providers means re-training from zero — even though the underlying facts about you haven't changed.
Where memory portability exists today, it's manual, one-way, and incomplete. No version history. No diff. No canonical source of truth. Things drop. Things contradict. You can't tell which.
The provider that holds your memory holds the keys to your AI experience. Policy changes, deprecated features, raised prices, breaches — you're exposed to all of it, and you can't take your context with you.
Hover the highlighted text to see which memories the model drew on, where each one came from, and how Tokencrumbs holds the canonical version.
Tokencrumbs is a protocol with multiple front doors. Choose the one that fits — they all share the same canonical ledger underneath.
Drop-in overlay for ChatGPT, Claude, Gemini, and Open WebUI. See your memory trail in real time. Export anywhere. Local-first. No account required. Free forever.
Install for Chrome / Firefox →Drop Tokencrumbs into your own AI app in 10 lines. Render the trail, read and write the canonical format, ship transparency by default. MIT licensed.
View on GitHub →A Tokencrumbs MCP server you run yourself or have us host. Expose your canonical context to any MCP-compatible model. Audit-ready. Compliance-friendly. SOC 2 in progress.
Read the docs →Tokencrumbs sits between you and your providers. It reads conversations locally, segments them into topical crumbs, and maintains a clean, dated, deduplicated memory ledger on your device.
When you switch providers — or use multiple at once — Tokencrumbs generates the right import payload for each one, formatted to that provider's quirks and limits. The canonical version stays with you.
Nothing is injected into your prompts. Nothing leaves your device unless you turn on encrypted sync. Everything is auditable. Everything is portable.
The extension creates awareness. The SDK builds developer mindshare. The MCP captures the technical early adopters. The hosted app converts the highest intent. Enterprise lands when the brand is established and regulation creates pull.
| Month | Phase | What ships |
|---|---|---|
| M0 | Domain + landing | Live demo on the homepage. Pitch before product. |
| M1–3 | Browser extension | Local-only canonical ledger. ChatGPT, Claude, Gemini support. Goal: 10k installs. |
| M2–5 | Open-source SDK | JS/TS library, MIT license. GitHub stars become the developer pipeline. |
| M4–6 | MCP + plugins | Self-hostable MCP server. Open WebUI and LibreChat plugins. Capture prosumer/homelab. |
| M6–9 | Hosted sync (paid) | First paid tier — encrypted cross-device sync. Convert highest-intent free users. |
| M9–12 | Tokencrumbs Chat | Standalone BYOK app with the full vision. Begin enterprise conversations. |
| M12+ | Enterprise & compliance | SSO, audit export, on-prem. EU AI Act enforcement creates forced demand. |
Not picked — stacked. Each tier serves a different audience and unlocks as the surfaces come online. The free tier is permanent.
AI assistants are becoming infrastructure.
Infrastructure you can't inspect is infrastructure you can't trust.
Infrastructure you can't take with you is infrastructure that owns you.
Tokencrumbs is the inspection layer · and the portability layer