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MCP live MCP 2025-11-25 streamable-http

ColdState — Deterministic Knowledge Infrastructure

ai.coldstate/knowledge

Deterministic knowledge for AI agents: search, fetch, cite and verify a 48M-entry knowledge base.

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Uptime
100.0%
5 direct probes · 30d
Response
857ms
last probe
Tools
16
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://cold-api.coldstate.ai/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
16 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
16 items in total; 3 or more earns these points.
pass Describes itself 10/10
97 characters; more than 30 earns these points.

Tools · 16

coldstate_search

Search a ColdState index by collection name or index ID. Returns ranked results with Ψ scores and state classification (CRYSTALLINE/FLUID/REACTIVE/DECOHERENT). Provide exactly one of `collection` or `…

coldstate_list_indexes

List all your ColdState indexes with their status, mode, document count, and domain preset.

coldstate_browse_documents

Browse documents in a ColdState index. Indexes are zero-knowledge, so each document is returned as your ref_id plus its state classification and E-score — no stored text. Map ref_id back to your own c…

coldstate_explain

Explain why a specific document ranked for a query. Returns a per-term relevance breakdown and an overall match summary — deterministic and reproducible.

coldstate_search_global

Search ColdState's global knowledge base (48.4M+ entries across 35 domains including SCIENCE, MEDICINE, TECHNOLOGY, HISTORY, etc). Returns deterministically ranked results with Ψ relevance scores and …

coldstate_domains

List all available knowledge domains in ColdState's global knowledge base with entry counts.

coldstate_fetch

Fetch a single knowledge-base entry verbatim by its stable id (e.g. "eng_000229f438f7cebd"). Deterministic retrieval — returns the full record plus a content_hash and kb_snapshot for reproducible cita…

coldstate_cite

Get a canonical, reproducible citation for a knowledge entry by id (title, domain, source, content_hash, kb_snapshot). Cite a fact so it can be re-verified later with coldstate_verify.

coldstate_verify

Verify a previously-cited knowledge fact is unchanged. Provide the entry id and the content_hash you stored earlier; returns whether it still matches the current knowledge base. The trust primitive fo…

coldstate_snapshot

Get the current knowledge-base snapshot/version id. Pin this kb_snapshot for reproducibility: the same query against the same kb_snapshot returns identical results.

coldstate_related

Find knowledge entries deterministically related to a given entry id via ColdState's concept-cluster graph. Returns same-cluster and neighboring-cluster entries, each tagged with its relation and a cr…

coldstate_resolve

Resolve a name, alias, or surface form to its canonical ColdState knowledge entry (id + title). Deterministic: an exact title match wins, else the top relevance-Ψ entry. Returns the canonical entry pl…

coldstate_batch_search

Run several knowledge-base queries in one call against a single consistent kb_snapshot. Returns each query with its ranked results — efficient and snapshot-consistent across the whole batch.

coldstate_stats

Deterministic statistics. With a `query`: total matches + state distribution of the top results. Without: global knowledge-base stats (entry count, domains, snapshot).

coldstate_capabilities

Machine-readable manifest of this server: available tools, knowledge domains, current kb_snapshot, determinism guarantees, and limits. Call this first to self-configure.

coldstate_isomorph

Cross-domain structural analog: given a knowledge entry id, find its closest structural twin in each OTHER domain ("same structure, different domain"). Deterministic. Use coldstate_resolve to turn a n…

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://cold-api.coldstate.ai/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "coldstate_\u2014_deterministic_knowledge_infrastructure": {
      "url": "https://cold-api.coldstate.ai/mcp",
      "transport": "streamable-http"
    }
  }
}