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NicheData KDP Intelligence

https://nichedata.dev
● healthy data-social-apis

Niche demand and competition intelligence for Kindle Direct Publishing authors. AI agents query keyword-level data including demand scores, competition intensity, BSR ranges, revenue estimates, and pricing analytics. $0.03 USDC per query on Base via CDP Facilitator. Free discovery endpoint lists all available niches. ([OpenAPI](https://nichedata.dev/openapi.json)) ([Docs](https://nichedata.dev/docs))

Category
data-social-apis
Chains
—
Price
—

Quality grade

How grading works
C 50.0 / 100
Availability 40.0 / 40
Endpoint responded (HTTP 200)
Payability 10.0 / 20
  • ✓ Answers a real HTTP 402 challenge
  • ✗ Publishes a /.well-known/x402 descriptor
  • ✗ Payment address on record
  • ✗ Settlement network declared
  • ✗ Price declared
Demand 0.0 / 40
No payment address on record, so demand cannot be measured
Owner verified 0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 7 h ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

2 resource(s) advertised by this origin.

GET https://nichedata.dev/v1/niche/{keyword}

Detailed niche intelligence for a Kindle publishing keyword — demand and competition scores, average prices, review thresholds. Cached/pre-seeded keywords cost $0.03 USDC; new (live-research) keywords cost $0.10 USDC.

POST https://nichedata.dev/mcp

Streamable-HTTP MCP server exposing list_niches (free) + research_niche (x402-paid) tools.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X GET https://nichedata.dev/v1/niche/{keyword}

Listed in

Directories this entry was found in.

awesome-x402