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Similarity Search Api Sdk

io.github.nexus-mcp-infra/similarity-search-api-sdk
Stateless NMI + cosine fusion with entropy-driven alpha calibration
healthy
status
3
tools exposed
745ms
connect latency
d2cbd005fa5b
schema fingerprint

Tools (3)

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

Endpoint

https://similarity-search-api-production.up.railway.app/mcp
Category: Files & Storage · Last checked: 2026-07-30T13:57:32Z

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