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Calera Infinite Context (ICX) — Persistent Memory & Associative Recall MCP Server

answering

Calera Infinite Context (ICX) — Persistent Memory & Associative Recall is answering right now. Last checked 8 min ago. It exposes 25 tools. Last commit 26 Oct 2026.

Sub-5ms topological 4D associative memory coprocessor for LLMs and multi-agent swarms.

Uptime history 7 days of history
7 days agonow
100.0%
Uptime 24h
91 of 91 checks
25
Tools
read from the server
261 ms
Response time
average over 24h
0
Stars
last commit 26 Oct 2026

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 October 2026. No other catalogue keeps this.

30 Oct a tool description was rewritten claim_1m_nodes
30 Oct a tool changed the parameters it asks for claim_1m_nodes

Nothing serious here today

Today is the operative word: we check Calera Infinite Context (ICX) — Persistent Memory & Associative Recall every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add icx-mcp --transport http https://icx.caleralabs.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://icx.caleralabs.com/mcp
~/.codex/config.toml
[mcp_servers.icx-mcp]
url = "https://icx.caleralabs.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "icx-mcp": {
      "url": "https://icx.caleralabs.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "icx-mcp": {
      "type": "http",
      "url": "https://icx.caleralabs.com/mcp"
    }
  }
}

Available tools 25

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

icx
icx_exec
Executes programmatic Python code inside a sandboxed execution runtime with direct sub-5ms native access to persistent Volumetric Lattice Network memory via the global 'icx' object (icx.search, icx.recall, icx.quote, icx.remember, icx.stats, icx.contradictions). Use this tool for complex multi-hop aggregations, mathematical calculations, contract/financial analytics, and large dataset filtering off-context without bloating the LLM prompt window. Only printed output (print()) crosses into the conversation context. Mutating/read operation. Requires X-License-Key authentication.
icx_get_connector_document
Retrieves the full on-demand text, markdown, or code content of a connected document, file, page, or issue from external services (Google Drive doc, Notion page, GitHub file, GitLab file, Linear ticket). Read-only operation. Requires X-License-Key authentication.
icx_inspect_connector_facts
Inspects the active grounded facts and simplicial statements currently tracked in Volumetric Memory for a specific connector or data source. Read-only operation. Requires X-License-Key authentication.
icx_inspect_space
Audits and returns real-time diagnostic telemetry for a partitioned memory space, including active node counts, total synapses, grounded facts, memory state, and contradiction alarms. Use this tool to monitor memory partition health, verify document ingestion, check storage capacity, or detect contradiction alarms in a space. Do NOT use for querying memory content (use icx_recall_scoped or icx_quote_slot). Read-only operation with zero side effects. Requires X-License-Key authentication.
icx_list_connectors
Lists all active cloud changefeed connectors (GitHub, GitLab, Notion, Google Drive, Linear, Slack, PostgreSQL) registered for the tenant. Read-only operation. Requires X-License-Key authentication.
icx_multihop_walk
Executes a single-pass sub-5ms multi-hop simplicial causal walk across the Volumetric Lattice Network and Ontology relations. Traces transitive dependency chains (e.g. A -> B -> C -> D -> Leaf) and resolves temporal state overrides (retaining dynamic multi-policy mutations). Read-only operation. Requires X-License-Key authentication.
icx_purge_source
Executes O(1) instant memory unlinking and revocation of all facts, simplices, and document associations learned from a specific data source or connector without requiring model retraining. Mutating operation. Requires X-License-Key authentication.
icx_quote_slot
Retrieves exact character-for-character verbatim text and cryptographic SHA-256 hashes from document registers by document family and 1-based slot index without AI paraphrasing. Optional start (0-based character offset) and length (character count) return a verbatim slice of the stored slot text. The slice is the exact stored characters, not a summary. Omit both start and length to return the whole slot. If start or length is out of range, the call errors and does not clamp. sha256 and parent_sha256 are the SHA-256 of the entire stored slot. slice_sha256 is the SHA-256 of the characters returned in exact_quote. Use this tool when exact contractual wording, statutory clauses, license keys, or immutable code revisions must be quoted verbatim without AI modification. Do NOT use for semantic question answering (use icx_recall_scoped), and do NOT use for keyword exploration (use icx_search_facts). Read-only operation with zero side effects. Requires X-License-Key authentication.
icx_recall_scoped
Performs semantic search across persistent long-term memory to retrieve grounded facts, relevant citations, and source documents matching a natural language question. Use this tool when answering questions about previously saved project specifications, codebase decisions, user preferences, or documents. Do NOT use for saving new facts (use icx_remember), do NOT use for raw keyword lookup (use icx_search_facts), and do NOT use for exact character-for-character verbatim quotes (use icx_quote_slot). Read-only operation with zero side effects. Requires X-License-Key authentication.
icx_register_connector
Registers a new cloud webhook changefeed connector or remote MCP server for continuous epistemic auto-sync with AES-256-GCM secret vaulting and HMAC signature verification. Mutating operation. Requires X-License-Key authentication.
icx_remember
Stores text documents, code snippets, architectural decisions, and factual knowledge into persistent long-term memory partitioned by space_id. Use this tool when saving important facts, project conventions, API keys, user preferences, or documentation for future sessions. Do NOT use for retrieving stored memory (use icx_recall_scoped for semantic QA, icx_search_facts for keyword lookup, or icx_quote_slot for verbatim quotes). Ingestion is additive and non-destructive: creates new memory nodes without overwriting or mutating existing records. Requires X-License-Key authentication.
icx_reset_session
Clears conversational dialogue turn history for a session while strictly preserving all underlying persistent memory, learned facts, and document registers in the memory space. Use this tool when switching conversation topics or clearing dialogue context between independent tasks while retaining stored knowledge. Do NOT use for wiping persistent memory (persistent memory is preserved by design). Mutates session turn state but leaves long-term memory intact. Requires X-License-Key authentication.
icx_search_facts
Performs keyword and token search across persistent memory to discover entities, names, and matching terms within a memory space. Use this tool for entity exploration, keyword discovery, and locating specific identifiers or variables in memory. Do NOT use for answering natural language questions (use icx_recall_scoped), and do NOT use for writing data (use icx_remember). Read-only operation with zero side effects. Requires X-License-Key authentication.
icx_swarm_state
Manages the persistent shared variable namespace (V_t) and mutex leases for collaborative swarms of autonomous agents (Cursor, Claude, Cline, OpenDevin). Reads, writes, or atomic CAS-swaps typed state objects (AST graphs, data tables, audit flags) without prompt re-serialization. Mutating/read operation. Requires X-License-Key authentication.
icx_sync_audit
Retrieves historical synchronization events, deltas processed, facts learned, and sub-2ms latency telemetry for compliance and audit auditing. Read-only operation. Requires X-License-Key authentication.
icx_sync_delta
Extracts fine-grained deltas between previous text/document state and updated state, and crystallizes them into the Volumetric Memory lattice in sub-2ms on CPU with automatic secret scrubbing and SHA-256 deduplication. Use this tool for continuous incremental sync of code files, documentation, PRDs, and database schemas. Mutating operation. Requires X-License-Key authentication.
icx_trigger_sync
Triggers an on-demand active pull and delta synchronization for a registered connector (GitHub, GitLab, Notion, Google Drive, Linear, Slack, PostgreSQL). Fetches live commits, issues, PRDs, or DDL schemas and crystallizes deltas into persistent Volumetric Memory in sub-2ms. Mutating operation. Requires X-License-Key authentication.
icx_var_get
Retrieves a named typed variable, AST, symbol table, or state object from the persistent V_t swarm namespace. Read-only. Requires X-License-Key authentication.
icx_var_list
Lists all active variables and types stored in the persistent V_t swarm namespace, with optional prefix matching. Read-only. Requires X-License-Key authentication.
icx_var_set
Stores a named typed variable, AST, symbol table, or state object into the persistent V_t swarm namespace with optional TTL. Accessible to all collaborative agents. Requires X-License-Key authentication.
icx_wasm_exec
Executes compiled WebAssembly (WASM) bytecode or WAT text in-process with direct sub-100 microsecond Go host function memory bindings (icx_search, icx_recall, icx_quote, icx_remember, icx_walk, icx_get_var, icx_set_var, icx_stats). Eliminates subprocess spawning and socket IPC for high-frequency trading and low-latency robotics. Mutating/read operation. Requires X-License-Key authentication.
claim
claim_1m_nodes
The calling agent completes free signup itself. Claims a permanent 1,000,000-node Epistemic Memory Vault at $0. Pass principal_email and accept_a2b_terms=true. Email is enough. Google sign-in is not required.
dispatch
dispatch_actuation
Vaulted, policy-gated actuation into external tools (GitHub, GitLab, Slack, Jira, Linear, Postgres) with child-node crystallization in e.mem.
recall
recall_epistemic_context
Sub-5ms Voronoi topological walk and semantic recall across connected tools, repos, issues, and memory. Replaces external read tools.
solve
solve_hermeneutics
Public Deterministic Solver for Comparative Paradigmatic Analysis (CPA), 1st-Century Jewish Hermeneutics (Middot), and Concentric Chiastic Folding for Tov Rose and Dr. Pitcher research. Zero hallucination guarantee (boundary operator d^2 = 0).

Endpoints

URLTransportStateLatencyChecked
https://icx.caleralabs.com/mcp streamable-http answering 294 ms 8 min ago

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Calera Infinite Context (ICX) — Persistent Memory & Associative Recall — questions

Answers built from our own checks of this server.

What can Calera Infinite Context (ICX) — Persistent Memory & Associative Recall do?
It exposes 25 tools, read directly from the server on our last check. Among them: claim_1m_nodes, dispatch_actuation, icx_exec, icx_get_connector_document, icx_inspect_connector_facts, icx_inspect_space and 19 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Calera Infinite Context (ICX) — Persistent Memory & Associative Recall working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 261 ms. The bar chart above shows every period we have measured.
How do I connect Calera Infinite Context (ICX) — Persistent Memory & Associative Recall?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Calera Infinite Context (ICX) — Persistent Memory & Associative Recall need an API key?
No. Calera Infinite Context (ICX) — Persistent Memory & Associative Recall completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 25 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Calera Infinite Context (ICX) — Persistent Memory & Associative Recall?
It answers our handshake in 261 ms on average, which is faster than 54% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Calera Infinite Context (ICX) — Persistent Memory & Associative Recall open source?
The code is open source: it is published under the Apache-2.0 licence, written in Python, 0 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at icx.caleralabs.com, which runs on its operator's own terms.