KDP Niche Research is listed as active in the registry but did not answer our last check. It exposes 2 tools.
Kindle niche intelligence (demand/competition/BSR/revenue) gated by x402 USDC on Base.
The linked repository no longer exists on GitHub — it was deleted or made private.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 25 August 2026. No other catalogue keeps this.
Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.
claude mcp add kdp-niche-research --transport http https://nichedata.dev/mcp
https://nichedata.dev/mcp
[mcp_servers.kdp-niche-research]
url = "https://nichedata.dev/mcp"
{
"mcpServers": {
"kdp-niche-research": {
"url": "https://nichedata.dev/mcp"
}
}
}
{
"servers": {
"kdp-niche-research": {
"type": "http",
"url": "https://nichedata.dev/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
list_niches
research_niche
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://nichedata.dev/mcp | streamable-http | answering | 64 ms | 7 min ago |
B2B company research and work-email lookup for AI agents. Pay per call in USDC on Base via x402.
Seller ranks, trends and demand in the x402 economy. USDC read off Base, not self-reported.
Pay-per-call DeFi intelligence for AI agents on Base — x402, USDC, no keys.
Live competitive intelligence for B2B teams — signals, threat rankings, and revenue-driving actions.
Keyword metrics and modeled AI search demand as JSON. Approved x402 calls in USDC on Base.
Insider trades, prediction-market odds, US macro and x402 data. Pays per call in USDC on Base.
Brazil PTAX, CNPJ/KYB, CEIS-CNEP sanctions, PIX and boleto. Paid x402 MCP API (USDC on Base).
Market data and web intelligence for AI agents, paid per call in USDC on Base via x402.
Answers built from our own checks of this server.