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io.github.nexus-mcp-infra/similarity-search-api-sdk

io.github.nexus-mcp-infra/similarity-search-api-sdk · v1.0.0

No registry update 90+ days

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	experimental, prompts, resources, tools
Tool definitions	3 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

Stateless NMI + cosine fusion with entropy-driven alpha calibration

streamable-http · https://similarity-search-api-production.up.railway.app/mcp

claude mcp add --transport http similarity-search-api-sdk https://similarity-search-api-production.up.railway.app/mcp

{
  "mcpServers": {
    "similarity-search-api-sdk": {
      "url": "https://similarity-search-api-production.up.railway.app/mcp"
    }
  }
}

nexus_similarity_search_api_rank_items_by_nmi_cosine_fusion
Ranks a corpus of items against a query vector using a calibrated fusion score (alpha * cosine + (1-alpha) * NMI_normalizado), where alpha is auto-derived from the corpus's marginal entropy unless overridden. Results are identified by their 0-indexed position in corpus_vectors (this tool does not ac
nexus_similarity_search_api_estimate_corpus_entropy_profile
Computes the aggregate entropy-calibrated alpha for a corpus without running a full search -- useful to inspect before committing to a large rank_items_by_nmi_cosine_fusion call. Returns a single aggregate corpus_entropy value, NOT a per-dimension breakdown -- the real logic only exposes the mean ma
nexus_similarity_search_api_score_pair_nmi_cosine
Computes the NMI-cosine fusion score for exactly one (query, target) vector pair at a fixed alpha. Use for explainability, debugging, or unit-level validation of fusion scores before running full corpus ranking. Unlike corpus-level ranking, alpha is NOT auto-calibrated for a single pair -- the real

Repository · JSON · Text for agents · Registry updated 2026-07-17