Search / io.github.nexus-mcp-infra/similarity-search-api-sdk
protogridR0· no sign-inStateless NMI + cosine fusion with entropy-driven alpha calibration
v1.0.0 · active · repository · descriptor JSON · versions
{
"mcpServers": {
"similarity-search-api-sdk": {
"type": "http",
"url": "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[mcp_servers.similarity-search-api-sdk]
url = "https://similarity-search-api-production.up.railway.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"similarity-search-api-sdk": {
"type": "remote",
"url": "https://similarity-search-api-production.up.railway.app/mcp",
"enabled": true
}
}
}{
"mcpServers": {
"similarity-search-api-sdk": {
"type": "http",
"url": "https://similarity-search-api-production.up.railway.app/mcp"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=similarity-search-api-sdk&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vc2ltaWxhcml0eS1zZWFyY2gtYXBpLXByb2R1Y3Rpb24udXAucmFpbHdheS5hcHAvbWNwIn0%3D"
}{
"servers": {
"similarity-search-api-sdk": {
"type": "http",
"url": "https://similarity-search-api-production.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"similarity-search-api-sdk": {
"httpUrl": "https://similarity-search-api-production.up.railway.app/mcp"
}
}
}extensions:
"similarity-search-api-sdk":
enabled: true
name: "similarity-search-api-sdk"
type: streamable_http
uri: "https://similarity-search-api-production.up.railway.app/mcp"
timeout: 300
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28protocol.statelessonly applies to 2026-07-28 serversprotocol.transportstreamable HTTPprotocol.list_ttlonly applies to 2026-07-28 serversauth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptionsevery tool has a descriptiontools.description_lengthdescriptions are concisetools.schemasevery tool has an object input schematools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky onestools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: nexus_similarity_search_api_rank_items_by_nmi_cosine_fusion (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); nexus_similarity_search_api_estimate_corpus_entropy_profile (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); nexus_similarity_search_api_score_pair_nmi_cosine (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)tools.token_costabout 1,195 tokens to load every tooltools.api_dumptools are not a one-to-one API dumpstability.changesno tool changes in 30 daysstability.rug_pullno tool changed its meaning under the same namedeps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI packageNo 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.
+repository +namespace-matches-repo +reachable +uptime-100% ~updated-94d-ago
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://similarity-search-api-production.up.railway.app/mcp streamable-http | none | yes | 100% | 852 ms | 2025-11-25 | 2026-10-19 |
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 marginal entropy across dimensions, not H(X_d) per individual dimension. Do NOT use expecting per-dimension granularity. Requires an x402 payment. |
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 accept explicit item IDs). Use this when you need semantically-calibrated similarity over a stateless corpus of up to 500k items without a vector database. Do NOT use for purely geometric nearest-neighbor search where NMI overhead is unnecessary, nor for corpora larger than 500k items per call. Requires an x402 payment. |
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 logic requires a fixed alpha (default 0.5); pass alpha explicitly for a specific blend. Do NOT use in a loop to score many pairs; batch them into rank_items_by_nmi_cosine_fusion instead. Requires an x402 payment. |
Schemas: list_tools.
{
"name": "io.github.nexus-mcp-infra/similarity-search-api-sdk",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://similarity-search-api-production.up.railway.app/mcp",
"type": "streamable-http"
}
],
"version": "1.0.0",
"repository": {
"url": "https://github.com/nexus-mcp-infra/similarity-search-api-sdk",
"source": "github"
},
"description": "Stateless NMI + cosine fusion with entropy-driven alpha calibration"
}