Skip to content
Agentmart
Submit a tool

ColdState — Deterministic Knowledge Infrastructure

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

Connector by coldstate.aiOfficial · Domain verified by the MCP Registry

IndexedLicense unknownRemote (HTTP)
Write a review

Install

Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/coldstate-ai-knowledge

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Remote endpoint

  • https://cold-api.coldstate.ai/mcp Remote (HTTP)

Get the weekly diff

The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.

We use your email only for this newsletter. Privacy

About

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

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
16 read · 0 write · 0 deleteRead-only
Secrets
1 (API keys, tokens or passwords)
Install scripts
Nothing to install (hosted)
Runs as
Hosted (remote endpoint)

Tools by what they do 16

From the running server's own tool list (tools/list) on Oct 25, 2026.

Read 16 · Look things up without changing anything.

  • coldstate_batch_search
  • coldstate_browse_documents
  • coldstate_capabilities
  • coldstate_cite
  • coldstate_domains
  • coldstate_explain
  • coldstate_fetch
  • coldstate_isomorph
  • coldstate_list_indexes
  • coldstate_related
  • coldstate_resolve
  • coldstate_search
Show 4 more tools
  • coldstate_search_global
  • coldstate_snapshot
  • coldstate_stats
  • coldstate_verify

Secrets and settings it asks for

Secrets: values you paste in that let it act as you.

  • Authorization

Network hosts it talks to 1

  • cold-api.coldstate.ai · found in remote endpoint, install command

Tools (16)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • coldstate_batch_searchBatch Searchread-only

    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_browse_documentsBrowse Documentsread-only

    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 content.

  • coldstate_capabilitiesCapabilitiesread-only

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

  • coldstate_citeCite Entryread-only

    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_domainsList Domainsread-only

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

  • coldstate_explainExplain Scoreread-only

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

  • coldstate_fetchFetch Entryread-only

    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 citation.

  • coldstate_isomorphCross-domain Analogread-only

    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 name into an id first.

  • coldstate_list_indexesList Indexesread-only

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

  • coldstate_relatedRelated Entriesread-only

    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 cross_domain flag. Same id ⇒ same neighbors.

  • coldstate_resolveResolve Entityread-only

    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 plus alternatives. Use the returned id with coldstate_fetch / coldstate_related.

  • coldstate_searchSearchread-only

    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 `index_id`.

  • coldstate_search_globalSearch Global Knowledgeread-only

    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 a state classification. Optionally filter by domain.

  • coldstate_snapshotKB Snapshotread-only

    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_statsStatsread-only

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

Show 1 more tools
  • coldstate_verifyVerify Factread-only

    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 for AI-to-AI fact-checking.

Signals

Last release
Sep 30, 2026 (29 days ago)

Details

Registry name
ai.coldstate/knowledge
Version
0.1.0
Auth
Bearer token
License
License unknown
Website
services.coldstate.ai
First seen
Oct 24, 2026
Last checked
Oct 25, 2026
Source
Official MCP Registry
Cite this page

ColdState — Deterministic Knowledge Infrastructure MCP server. Agent Mart. https://agentmart.dev/connectors/coldstate-ai-knowledge (last updated 2026-10-25)