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Signalcrest
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Trend radar for developers & founders

Catch what's emerging before it peaks.

Signalcrest scores real momentum across ten developer communities and filters hype from signal — while search-trend tools are still catching up.

Track a keyword freeSee the live feed
  • Hacker News
  • GitHub
  • Stack Overflow
  • npm
  • Hugging Face
  • Dev.to
  • Lobsters
  • Product Hunt
  • arXiv
  • Crypto gov forums

Live

Rising right now

Each one confirmed by two or more independent communities.

Full feed
  1. 1
    80

    @ai-sdk/typesafe-ai — AI SDK integration for Typesafe AI

    Provides a typed SDK for integrating AI services in the Typesafe ecosystem. · for backend engineers

    npmHeating 2 · typesafeai−6 saturated17d ago
  2. 2
    59

    anatomy — A Claude Code skill that turns a technical idea into a detailed, interactive isometric figure of a real machine. It makes SVG with

    Claude Code skill auto-creates interactive SVG isometric diagrams from technical ideas. · for devs, product designers

    githubSteady 3 · claudeai−5 saturated12h ago
  3. 3
    51

    photocraft — PhotoCraft: An open-source, photo editor written by scratch in pure Rust

    Open-source Rust photo editor offers high-performance image editing for developers. · for graphics engineers, UI developers

    githubSteady 4 · rustother−23 saturated7d ago
  4. 4
    50

    oh, apparently it's not possible to portably check for string-to-float conversion errors in standard c

    Portability issues with string-to-float conversion in C may affect low-level code reliability. · for systems programmers

    lobstersSteady 3 · cdevtools1d ago
  5. 5
    45

    google/embeddinggemma-2 (feature-extraction)

    Google releases EmbeddingGemma-2 model for feature-extraction in ML pipelines. · for ml engineers, data scientists

    huggingfaceSteady 2 · googleai−21 saturated5d ago

The problem

You're always late.

By the time a trend hits Google Trends or Exploding Topics, you're already behind — the early builders shipped, the good domains are gone, the narrative is set. Search-trend tools show you yesterday's momentum and leave you to guess what's real.

The shift

Watch where trends start.

Signalcrest watches developer and builder communities — where trends actually begin — and scores momentum the moment it accelerates. Cross-source corroboration separates a real movement from one loud thread, and every signal comes with a plain-English read.

Receipts

Flagged early. Climbing now.

Live from our own feed — when we first flagged each signal, and where it is today.

First flagged 17 days ago

@ai-sdk/typesafe-ai — AI SDK integration for Typesafe AI

Heating · score 80 · 2 sources

First flagged 89 days ago

@stacksjs/database — The Stacks database integration.

Heating · score 68

First flagged 1 day ago

Git Isn't a Diff Tracker: How Blobs, Trees, DAG Commits, and the Index Actually Work Under the Hood

Heating · score 63

Method

How it works

Read the full methodology

01

We watch the leading edge

Ten developer and builder communities, ingested every 30 minutes — where trends actually start.

02

We score real momentum

Velocity + acceleration + cross-source spread. A topic only ranks when independent communities agree — the anti-hype filter.

03

You act early

Track niches, get real-time alerts, and read a plain-English 'why it matters' on every signal.

Why Signalcrest

Built to be early, and honest about it.

Leading, not lagging

Community signals move before search data. You're early — not reading yesterday's news.

Signal, not noise

One viral post isn't a trend. We require cross-source proof before anything ranks.

Action, not just discovery

Every signal tells you why it matters and where it came from — not just a graph.

Priced for builders

Real-time from $24/mo — not $99+. Founding members get 40% off year one.

For technical teams

The trend API that doesn't cost $1,000/mo

Exploding Topics charges $1,000/month for 1,000 API requests — after you've paid for their $249/month plan. Signalcrest starts free at 100 requests a month, then $19/month for 5,000 requests on Relay, or 10,000 requests/month at $99 on Radar: scored signals, lifecycle stages, and cross-source spread, fresh every 30 minutes.

Same key, same quota: Signalcrest speaks MCP, so Claude Code, Cursor, and anything else that does can query the feed without leaving your editor. Free MCP servers hand an agent a raw Hacker News or GitHub Trending list. This one returns scored signals — cross-source spread, lifecycle stage, and the five weighted terms behind every number — so your agent gets a ranking it can defend, not a list it has to interpret.

Get a free API key MCP setup
curl -H "Authorization: Bearer sk_..." \
  "https://www.signalcrest.app/api/v1/signals?category=ai"

{ "signals": [{
    "title": "…",
    "signal_score": 87,
    "lifecycle": "Heating",
    "source_spread": 3,
    "summary": "why it matters…"
}]}

…or wire it into your editor

claude mcp add --transport http signalcrest \
  https://www.signalcrest.app/api/mcp \
  --header "Authorization: Bearer sk_..."

The top 5, every Monday

The five strongest trends confirmed by 2+ developer communities, each with why it matters. No account needed — one email a week, unsubscribe in one click.

Prefer RSS? /feed.xml carries the same free top 5, live.

FAQ

Questions

How is this different from Exploding Topics / Glimpse?

They read Google-search trends, which lag. We read leading community signals and score cross-source momentum, so you catch trends earlier — and we tell you why each one matters.

Where does the data come from?

Hacker News, GitHub, Stack Overflow, npm, Hugging Face, Dev.to, Lobsters, Product Hunt, arXiv, and crypto governance forums — ingested every 30 minutes and scored for real momentum.

Is the free plan actually useful?

Yes — the top 5 live signals in full (no delay), one tracked niche, a weekly digest, and 100 API calls a month. Paid plans unlock the whole feed plus more niches, alerts, history, search, export, and API.

Who's it for?

Indie hackers picking their next project, founders watching a market, investors scouting, and content teams who need to be first.

How much does the API cost?

Every account gets 100 requests a month free, including the MCP server. Beyond that, Relay is $19/mo for 5,000 requests and Radar is $99/mo for 10,000. For comparison, Exploding Topics' API starts at $1,000/mo for 1,000 requests — on top of their $249/mo plan.

Can I use it from Claude Code or Cursor?

Yes. Signalcrest runs a remote MCP server at https://www.signalcrest.app/api/mcp with four tools: list_signals (what's climbing right now), get_topic (one signal's full history), list_entities (the technologies themselves, ranked) and get_entity (one entity with the items behind it). Generate a key in your dashboard and it offers a one-click Cursor install and the Claude Code command with your key filled in. A free account gets 100 requests a month to try it; Relay ($19/mo) gives 5,000 and Radar includes 10,000. The REST API and MCP share one key and one quota — one tool call is one request.

Be early for once.

Track a niche free, or go real-time from $24/mo. Founding members get 40% off year one with FOUNDER.

Start freeSee plans