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KDP Intelligence

Kindle niche demand and competition scores via API

📖 Books & WordsHEALTHYchecked 7h ago
AUTH NONECORS ✗AGENT ✓HTTPS ✓COMMERCIAL ?

Query keyword-level demand scores, monthly search volume and availability for Kindle Direct Publishing niches. The preview and check endpoints are keyless and free, while deeper competition and revenue data unlocks through x402 USDC micropayments. It runs as a FastAPI service with an OpenAPI spec.

93HOW IT'S SCORED ⓘ
Docs ↗
Status badge · for your READMEshipapis health badge: 93 · healthy
Uptime history
97.1%90 days
96.7%30 days
429P50 · ms
3902P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 196 ms, slowest 2146 ms, most recent 389 ms.
Live response samplecaptured by our last successful check
GET https://kdp-intelligence-api.vercel.app/v1/preview/coloring%20book

{
  "keyword": "coloring books for adults",
  "demand_score": 87.3,
  "monthly_searches": 60500,
  "available": true,
  "full_data_cost_usdc": 0.1,
  "full_data_url": "https://nichedata.dev/v1/niche/coloring+books+for+adults",
  "api_version": "0.1.0"
}
Call itcurl · fetch · python
curl "https://kdp-intelligence-api.vercel.app/v1/preview/coloring%20book"
const res = await fetch("https://kdp-intelligence-api.vercel.app/v1/preview/coloring%20book");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://kdp-intelligence-api.vercel.app/v1/preview/coloring%20book")
print(res.json())

BROWSER CALLS BLOCKED (NO CORS/HTTPS) — USE THE CURL SNIPPET

Endpoints · 6HealthyFULL DOCS ↗
Monitored path responding — GET /v1/preview/coloring%20book429 mschecked 7h ago
GET/v1/preview/coloring%20bookPROBED

Kindle niche demand and competition scores via API

GET/v1

V1 — documented GET route.

GET/v1/1

V1 details by ID (example: 1).

GET/v1?limit=10

V1 — documented GET route.

GET/v1/search?q=test

Search by query parameters.

GET/v1/

V1 — documented GET route.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

KDP Intelligence: common questions

Is KDP Intelligence free to use?

Yes — KDP Intelligence is a free books & words API. Free tier: Free preview/check endpoints; full niche data is paid via x402 USDC. Whether the free tier allows commercial use is unclear — check the provider docs.

Does KDP Intelligence need an API key?

No — KDP Intelligence needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call KDP Intelligence from the browser?

Not directly — KDP Intelligence doesn't send browser-friendly CORS headers, so call it from a server or proxy instead. Copy the curl or Python snippet on this page to get started.

Is KDP Intelligence up right now?

As of our last scheduled check, KDP Intelligence is healthy with 97.1% uptime over 90 days and a 429 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.