Who it is for
Researchers and teams who collect reference material continuously and keep restating the same background in new chats.
Search saved links, notes, and clips from chat
Overview
Kepler is a place to keep things found on the web: pages, links, notes, videos, images, annotations, and references. This app gives ChatGPT access to that saved material, whether it belongs to one person or to a team.
Material is filed into Spaces, which can be private or shared. Colleagues add notes and annotations to what is stored, and the assistant searches across those Spaces mid-conversation instead of having the same background explained again each time.
Extraction reaches past page text. Video and image content is processed as well, so what comes back carries usable context rather than a bare address and a heading.
Researchers and teams who collect reference material continuously and keep restating the same background in new chats.
Saved video and image content is indexed rather than just filed, so retrieval reaches material that text-only bookmarking misses.
Availability
Kepler is listed in the ChatGPT apps directory only. Momentium Pty Ltd has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
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This is an independent catalogue entry compiled by Node8 from Kepler's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Momentium Pty Ltd, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.