# Vibe Radar

> Vibe Radar tracks 1,093 SaaS apps across 74 categories: verified monthly and annual prices (USD, shown in 9 currencies), whether an AI coding agent can rebuild each one ("vibecode it"), what you lose by rebuilding, free and open-source alternatives, and confirmed price changes. Interface in English, Portuguese (Brazil), German and French.

Prices come from each vendor's official pricing page and carry the date they were checked; always cite that date and the page URL. Research text is written in English and machine-translated to the other languages.

## For agents

- MCP server (Streamable HTTP, JSON-RPC over POST): https://viberadar.si/mcp
- REST API, same tools: https://viberadar.si/api/v1/{tool}?param=value — OpenAPI: https://viberadar.si/openapi.json
- MCP server card: https://viberadar.si/.well-known/mcp.json
- WebMCP: pages register the same tools through navigator.modelContext, plus save_to_list, remove_from_list, get_my_list and set_currency for the visitor's own list.
- Markdown version of any app page: https://viberadar.si/{slug}.md (e.g. https://viberadar.si/notion.md)
- Anonymous use: 60 tool calls per hour per IP. Business plan API keys: 10,000 calls per month (send `Authorization: Bearer br_live_…`).

## Tools

- `search_apps`: Search the Vibe Radar catalog of ~1,100 SaaS apps by name, description or category. Filter by verdict (yes = rebuildable with an AI agent in one session, kinda = with trade-offs, no = better to subscribe) and monthly USD price, sort by price. Returns apps with price, verdict and page URL.
- `get_app`: Everything Vibe Radar knows about one app: verdict and reasoning, what you lose by rebuilding, requirements, all plans with monthly/annual prices and limits, free tier, hidden costs, free alternatives, price history, official pricing URL.
- `compare_apps`: Compare 2 to 4 apps side by side: monthly and yearly cost, billing model, free tier, extra costs, rebuild verdict and free alternatives. Says which is cheapest per year and by how much.
- `team_cost`: Cheapest apps in a category for a team of N people, reading each plan table (per-user vs per-workspace prices, monthly vs annual billing, user caps, extra-seat prices). Returns the cheapest plan per app sorted by yearly cost.
- `stack_savings`: What a list of apps costs per month and per year, and how much switching each paid app to its best free or open-source alternative would save.
- `price_changes`: Confirmed vendor price changes (same plan, same billing period), newest first, with the source of each check.
- `convert_price`: Convert a USD amount to another currency with the day’s reference rate (ECB, or Banco Central do Brasil PTAX for BRL). Optionally adds Brazil’s 3.5% IOF on card purchases.
- `build_vs_buy`: Estimate whether building your own version of an app with an AI coding agent pays off versus subscribing, over 12–36 months. Uses the research’s time estimate and requirements as defaults; every number can be overridden.
- `list_categories`: All catalog categories with slug, localized name and number of apps.

## Pages

- [Catalog](https://viberadar.si/): every app, sortable by price, with currency and monthly/yearly switches. Query: https://viberadar.si/?q={words}&category={slug}&sort=price-asc
- [App page](https://viberadar.si/notion): verdict, what you lose, plans, cost in your currency, build-or-buy calculator, alternatives, FAQ
- [Compare](https://viberadar.si/compare): https://viberadar.si/compare/{slug}-vs-{slug} for 2–4 apps
- [Cost for your team](https://viberadar.si/team-cost): https://viberadar.si/team-cost?category={slug}&team={n}
- [Shared list](https://viberadar.si/stack?apps=notion,figma): cost of a list and savings from free alternatives
- [Price changes](https://viberadar.si/precos) · RSS: https://viberadar.si/precos.xml
- [Plans](https://viberadar.si/pricing): Free, Pro (US$ 9.90/month), Business (US$ 19.90/month)
- [Advertise](https://viberadar.si/advertise): sponsored placements at US$ 299.90 and US$ 499.90 per 30 days
- [Browser extension](https://viberadar.si/extension)