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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "kdp-niche-research": {
      "type": "http",
      "url": "https://nichedata.dev/mcp"
    }
  }
}

claude mcp add --transport http kdp-niche-research https://nichedata.dev/mcp

[mcp_servers.kdp-niche-research]
url = "https://nichedata.dev/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "kdp-niche-research": {
      "type": "remote",
      "url": "https://nichedata.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "kdp-niche-research": {
      "type": "http",
      "url": "https://nichedata.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=kdp-niche-research&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbmljaGVkYXRhLmRldi9tY3AifQ%3D%3D"
}

{
  "servers": {
    "kdp-niche-research": {
      "type": "http",
      "url": "https://nichedata.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "kdp-niche-research": {
      "httpUrl": "https://nichedata.dev/mcp"
    }
  }
}

extensions:
  "kdp-niche-research":
    enabled: true
    name: "kdp-niche-research"
    type: streamable_http
    uri: "https://nichedata.dev/mcp"
    timeout: 300

Quality 76 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene64 · weight 30

pass
tools.descriptionsevery tool has a description
warn
tools.description_length1 tools have descriptions over 1,024 characters, which crowds the context
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: list_niches (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); research_niche (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)
pass
tools.token_costabout 469 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

2 tools, about 469 tokens to load them all · tool set f0770e66cf94 · checked 2026-10-19 10:52 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 90 / 100

provenance90

liveness100

freshness65

hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-100% ~updated-170d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://nichedata.dev/mcp` streamable-http	none	yes	100%	293 ms	2025-11-25	2026-10-19

Tools (2)

list_niches List available KDP niche keywords ordered by demand score. Use this to discover what Kindle publishing niches are available for detailed research. Returns keywords ordered by demand score (highest first). This endpoint is free — no payment required. Args: limit: Number of results to return (1-100, default 20) offset: Pagination offset (default 0)

research_niche Get detailed KDP niche intelligence for a specific keyword. Returns demand score, competition score, Amazon BSR range, estimated monthly revenue, review threshold, average book pricing, and data freshness for the given Kindle publishing niche. Pricing tiers (x402 USDC on Base network): - $0.03 per query for cached/pre-seeded keywords - $0.10 per query for live on-demand research (new keywords) Use the free `list_niches` tool first to see available keywords. Payment options: 1. Set the KDP_X_PAYMENT environment variable on the server for auto-pay. 2. Pass a valid x402 payment header via the x_payment argument. 3. If neither is set, the tool returns structured 402 payment instructions that an x402-capable agent can use to construct and retry payment. Args: keyword: The KDP niche keyword to research (e.g. "romance novels", "keto cookbook") x_payment: Optional base64-encoded x402 payment header. Takes precedence over the KDP_X_PAYMENT environment variable.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.simul813/kdp-niche-research",
  "title": "KDP Niche Research",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://nichedata.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.2.0",
  "repository": {
    "url": "https://github.com/simul813/kdp-intelligence-api",
    "source": "github"
  },
  "websiteUrl": "https://nichedata.dev",
  "description": "Kindle niche intelligence (demand/competition/BSR/revenue) gated by x402 USDC on Base."
}