Niche Finder & Trend Radar: What to Build Next

Check any product idea against live demand before you build it, and see where new demand is opening every day.

Building is fast now. Knowing what to build is the hard part: obvious lanes fill up with copies within weeks. Rush Radar tells you, with real numbers, whether a lane is unproven, small, open, heating up, contested or crowded, and gives you a daily brief of the doors that just opened.

What it does

Lane check (one row per idea). Give it a list of ideas or keywords ("invoice ocr", "google hotels prices", "tiktok shop products"), or a CSV or Google Sheet of them. For each one you get:

• how many tools on the Apify Store already match
• monthly users across the top 25, and how many tools have 100+ monthly users
• the leader, its monthly users and its 30-day failure rate
• how many tools gained most of their users this month (a lane heating up)
• x402 tools that AI agents already pay for in the same lane, with paying wallets in 30 days
• a plain verdict: UNPROVEN, SMALL, OPEN, HEATING UP, CONTESTED or CROWDED, with the reason

Daily brief. Everything new from the daily radar, as rows by section:

• New doors: platform launches from official sources (Shopify developer changelog, OpenAI, Google Ads & Commerce, Meta, TikTok, Amazon, eBay, Microsoft Advertising, Apple developer, GitHub, Cloudflare, Stripe, WooCommerce, Hugging Face, Apify)
• New business rules: UK legislation and US Federal Register rules that affect sellers, payments, data, AI, customs or tax
• Rising tools on the Apify Store (users this week vs this month)
• Where AI agents pay: top x402 services by paying wallets
• Toolkit downloads: platform toolkits on npm and PyPI growing fastest (builders adopt a platform before their apps appear in any store)
• New GitHub projects gaining stars fastest, and Wikipedia interest in platform topics week on week
• What builders are publishing on the official MCP Registry

New doors and rising tools give you one section on its own.

Input

Field	Use
mode	lane_check (default), daily_brief, new_doors, rising_tools
keywords	Ideas to check, up to 200 per run
keywordsCsvUrl	Public CSV or Google Sheet link, first column read as keywords
source	For rising_tools: apify, x402, mcp, packages, github, wikipedia
days	For new_doors: briefs to cover, 1 to 30

Output example (lane check)

{
  "keyword": "google hotels prices",
  "verdict": "OPEN",
  "verdictReason": "proven demand with few strong tools, or a leader that fails often or rates poorly. A better tool can win here.",
  "matchingTools": 322,
  "monthlyUsersTop25": 699,
  "toolsWith100PlusUsers": 2,
  "leader": "Google Travel Hotel Prices",
  "leaderMonthlyUsers": 522,
  "leaderFailRate30dPct": 0
}

Pricing (pay per event)

• Lane check: $0.02 per idea checked
• Daily brief: $0.05 per brief
• New doors list / rising tools list: $0.02 per list

Failed checks are free. Volume discounts apply on higher Apify plans.

For AI agents

Call this Actor through the Apify MCP server or the Apify API. Use mode: "lane_check" with keywords before recommending a product idea; read verdict and verdictReason. Use mode: "daily_brief" for a morning summary of new openings. All data is public, read-only and refreshed daily at 06:00 UTC.

Where the data comes from

Only sources whose terms allow automated reading: the Apify Store public API, the official MCP Registry API, the Coinbase x402 Bazaar discovery API, the Hacker News API, npm and PyPI download statistics, the GitHub API, Wikimedia page views, the US Federal Register API, legislation.gov.uk, GOV.UK and official RSS feeds. The Shopify App Store, Google Trends and Reddit are not used, because their terms do not allow it.

Monthly users are unique accounts that ran a tool in the last 30 days. Verdicts are a starting point for your own judgement, not a promise of sales.

Support

Questions or a source you would like added: open an issue in the Issues tab.