Now in public beta

One API for every product review on the internet

Aggregate reviews from YouTube and Reddit. Get AI-powered scores, summaries, and sentiment — all from a single endpoint.

Terminal
$ curl "https://reviewstack.vercel.app/api/v1/reviews?product=sony+wh1000xm5" \
  -H "Authorization: Bearer rsk_live_xxx"

How it works

1

Send a product name

Pass any product name to our API. We handle the rest.

2

We aggregate reviews

We pull reviews from YouTube and Reddit, normalize ratings, and filter noise.

3

Get an AI summary

Claude AI analyzes everything. Get a score, pros/cons, themes, and key excerpts — all in one JSON response.

Everything you need in one response

Normalized scores, AI-generated pros and cons, recurring themes with frequency counts, and notable excerpts with attribution. All structured as clean JSON.

  • Normalized 1-10 score across all sources
  • Confidence score based on review volume
  • Top pros and cons ranked by frequency
  • Recurring themes with sentiment analysis
  • Source breakdown (YouTube comments, Reddit sentiment)
  • Notable excerpts with author attribution
Response JSON
{
  "data": {
    "product": "Sony WH-1000XM5",
    "normalizedScore": 8.4,
    "confidence": 0.92,
    "summary": "The Sony WH-1000XM5 delivers exceptional noise cancellation and audio quality...",
    "pros": [
      "Industry-leading noise cancellation",
      "Comfortable lightweight design",
      "30-hour battery life",
      "Multipoint Bluetooth connection"
    ],
    "cons": [
      "No folding hinge design",
      "Touch controls can be finicky",
      "Premium price point"
    ],
    "themes": [
      { "name": "noise cancellation", "mentions": 47, "sentiment": "positive" },
      { "name": "comfort", "mentions": 32, "sentiment": "positive" },
      { "name": "sound quality", "mentions": 28, "sentiment": "positive" },
      { "name": "price", "mentions": 15, "sentiment": "mixed" }
    ],
    "sources": {
      "youtube": { "commentCount": 847, "avgSentiment": 4.5 },
      "reddit": { "postCount": 23, "avgSentiment": 4.1 }
    },
    "model": "claude"
  }
}

Simple pricing

Start free with 50 lookups per month. Upgrade when you need more.

Free

$0/mo
  • 50 lookups/month
  • YouTube + Reddit
  • Claude AI summaries
  • 24h cache
Start free
Most popular

Starter

$29/mo
  • 500 lookups/month
  • YouTube + Reddit
  • Claude AI summaries
  • 24h cache
  • Priority support
Get started

Pro

$79/mo
  • 2,000 lookups/month
  • YouTube + Reddit
  • Claude AI summaries
  • 24h cache
  • Priority support
  • Bulk endpoints (soon)
Go Pro

Start aggregating reviews today

50 free lookups per month. No credit card required. Get your API key in 30 seconds.

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