Rising GitHub repos per topic, ranked by star velocity, plus repos spotted early. Free, read-only.
Connect Remote server
claude mcp add --transport http upstar https://upstar.dev/mcp
{
"mcpServers": {
"upstar": {
"url": "https://upstar.dev/mcp"
}
}
}
{
"servers": {
"upstar": {
"type": "http",
"url": "https://upstar.dev/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://upstar.dev/mcp
Tools 9 found in our last check
emergingSmall GitHub repositories (under 1,000 stars a week ago, at least 30 days old) gaining stars at least twice as fast as in a usual week, by that ratio; optionally in one topic. The same list as Upstar's Emerging page (or the topic's Emerging tab).
get_collectionA collection's ranking (score = momentum and health with the collection's weights) and its rising newcomers under 90 days old: the same lists as the collection's page on Upstar.
get_repoOne GitHub repository as Upstar sees it, the same facts as its Upstar page: stars and gains, its usual week, its star total week by week over 12 weeks, its topics and ranks, when Upstar spotted it, its latest release, license, activity and collections. Answers for every reposito…
list_collectionsUpstar's collections: open-source tools that do one job, or alternatives to one product, each ranked by momentum and health. Use a slug with get_collection.
list_topicsLists the topics Upstar ranks GitHub repositories in (emulation, self-hosted, Rust, MCP…): slug, name, category, description and how many repositories rank in each this week. Use a slug with topic_ranking or emerging.
searchUpstar's search, the same as the site's search bar: topics by whole words (a name, slug, GitHub tag, language or keyword equal to the query, then every word of it in the topic's name, category or description) and every repository with an Upstar page (by name, description, GitHub…
spotted_earlyRepositories whose stars at least doubled since Upstar first ranked them in a topic, at any rank: when, in which topic and at which rank it first ranked them, their stars then and now. Most grown first: the same list as Upstar's Spotted early page.
topic_rankingRanks a topic's GitHub repositories by star velocity (stars gained ÷ √stars before) over the last 24 hours, 7 days or 30 days, with the stars each gained: the same list as the topic's page on Upstar. Page with offset (next_offset).
trendingThe fastest-rising GitHub repositories across every topic Upstar tracks, by star velocity or by stars gained, over 24 hours, 7 days or 30 days; new_only keeps repositories created in the last 7 days. The same list as Upstar's Trending page.
Details
| Endpoint | https://upstar.dev/mcp (Streamable HTTP) |
| First published | 3 Nov 2026 |
| Last updated | 3 Nov 2026 |
| Registry name | dev.upstar/upstar |
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