# VaultCrux Platform MCP server

VaultCrux Platform — tools: retrieval, proof, intel, economy, watch, org

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-cuecrux-vaultcrux-platform
- Repository: https://github.com/CueCrux/VaultCrux

## Install
- Endpoint: https://api.vaultcrux.com/platform/mcp
- Auth: Auth required by registry metadata

## Setup notes
- Remote header: x-api-key (required; secret)
- Remote header: x-tenant-id (required)
- Remote header: x-agent-id
- The upstream registry signals required auth or secrets.
- Remote endpoint: https://api.vaultcrux.com/platform/mcp
- Header: x-api-key
- Header: x-tenant-id
- Header: x-agent-id

## Tools
- cuecrux_session (CueCrux Session) - Opens a CueCrux session and returns a typed capability plan (retrieval, proofing, memory, journaling, audit) across VaultCrux and MemoryCrux. Call this first, once. Every subsequent action routes through the channels the plan returns — do not browse the legacy per-service tool list when a plan channel already covers the capability. Identical behaviour for local Crux CE and hosted CueCrux. Hosted deployments stage v1 flat-list or v2 typed-graph plan shapes behind feature flags; callers treat the returned plan as the single source of routing truth. Bulk-capable agents transparently use the HTTP/2 binary channel; MCP-only agents use the MCP fallback URLs the plan provides. Implements RCX-Protocol v1.0. Endpoint: https://api.vaultcrux.com/platform/mcp
- query_vault (Query Vault) - Retrieve relevant documents from the vault using semantic search across one or more corpora.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- query_with_threshold (Query with Trust Threshold) - Execute a trust-routed query that filters results by minimum confidence and respects budget constraints.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_session_context (Get Session Context) - Retrieve the current session context for the active agent, including recent interactions and state.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_journal (Get Journal) - Fetch journal entries for the active agent, with optional filtering by time range, entry type, and pagination.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- action_journal_query (Query Action Journal Receipts) - Search action journal receipts with filters for time range, outcome, and tool name.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_stale_pins (Get Stale Pins) - List pinned items for the active agent that may be outdated and need refresh or removal.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- memory_retrieve (Memory Retrieve) - Retrieve memory chunks, optional curated ESI facts, and passport-driven engrams for Pattern B memory reasoning. The pre_logic field in the response is a ready-to-inject system prompt preamble containing structural data-shape facts calibrated to the calling model's capability class — insert it before reasoning. When deterministic engram pre-execution is enabled, the server may also inline enumerated_facts directly in the response.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- memory_session_init (Memory Session Init) - Boot a memory reasoning session and return the server-controlled session procedure, deterministic passport identity, capability class, and engram manifest. Call once before memory_retrieve when the session-init endpoint is enabled.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- memory_engrams_resolve (Memory Engrams Resolve) - Resolve body content for engrams listed in memory_session_init.available_on_demand. Use when a question matches an on-demand engram's applies_when or trigger_features.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- memory_reason_about (Memory Reason About) - Reason over previously retrieved memory chunks and optional curated facts using the cached Pattern B prompt.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- proof_document (Proof Document) - Submit a document artefact for cryptographic proof. Creates an async proof job that retrieves the artefact, chunks it, hashes each chunk, and produces a Merkle receipt. Returns the job ID for status polling.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_proof_status (Get Proof Status) - Poll the status of a proof job. Returns the current state (queued, processing, complete, failed) and progress details.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_proof_chunks (Get Proof Chunks) - Retrieve the chunk-level hashes for a completed proof job. Supports cursor-based pagination.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_proof_receipt (Get Proof Receipt) - Retrieve the cryptographic proof receipt for a specific answer. Contains the Merkle root, signature, and verification metadata.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_proofpack (Get Proofpack) - Download the full proofpack bundle for a receipt. Includes all chunk hashes, Merkle tree, signature, and verification instructions.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_credit_balance (Get Credit Balance) - Retrieve the current credit balance for the agent, including receipt verification and passport data.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_credit_escrow (Get Credit Escrow) - List active escrow holds for the tenant.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_spend_receipt (Get Spend Receipt) - Retrieve a specific spend receipt by ID.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_pricing (Get Pricing) - Retrieve current pricing information for the tenant.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_economy_dashboard (Get Economy Dashboard) - Retrieve the economy dashboard for the agent, showing balances, recent transactions, and spending summaries.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- tip_platform (Tip Platform) - Send a credit tip to the platform. Amount must be a positive number.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- browse_bundles (Browse Bundles) - List available credit bundles for purchase.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- purchase_bundle (Purchase Bundle) - Purchase a credit bundle by ID.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_passport (Get Passport) - Retrieve the agent's trust passport.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- verify_passport (Verify Passport) - Verify another agent's trust passport.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_trust_level (Get Trust Level) - Get the current agent's trust escalation level.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- register_belief (Register Belief) - Register a belief about an answer for trust tracking.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_beliefs (Get Beliefs) - List registered beliefs with optional filters.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- diff_receipts (Diff Receipts) - Compare two provenance receipts and highlight differences.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_blast_radius (Get Blast Radius) - Estimate the impact radius if an artefact or receipt changes.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_break_analysis (Get Break Analysis) - Analyze what would break if a given answer or receipt is invalidated.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_counterfactual_summary (Get Counterfactual Summary) - Generate a counterfactual summary for an answer.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- explain_last_answer (Explain Last Answer) - Explain how the last answer was derived.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_domain_affinity (Get Domain Affinity) - Get the agent's domain affinity scores.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- annotate_session (Annotate Session) - Add an annotation to the current session.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_knowledge_gaps (Get Knowledge Gaps) - Identify knowledge gaps across domains.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_daily_briefing (Get Daily Briefing) - Get the daily knowledge briefing.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- set_policy (Set Policy) - Set or update an active policy for the agent.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_active_policy (Get Active Policy) - Get the currently active policy.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- schedule_recheck (Schedule Recheck) - Schedule a periodic re-check of knowledge freshness.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- set_reasoning_profile (Set Reasoning Profile) - Set the agent's reasoning methodology profile.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_reasoning_profile (Get Reasoning Profile) - Get the agent's current reasoning profile.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- pin_receipt (Pin Receipt) - Pin a receipt to prevent it from being garbage collected.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- tip_agent (Tip Agent) - Send a credit tip to another agent.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- create_coalition (Create Coalition) - Create a multi-agent coalition to address a knowledge gap.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- join_coalition (Join Coalition) - Join an existing coalition with a credit pledge.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- create_handoff_package (Create Handoff Package) - Create a handoff package for multi-agent session transfer.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- accept_handoff_package (Accept Handoff Package) - Accept an incoming handoff package.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- find_contradictions (Find Contradictions) - Scan for contradictions across knowledge sources.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- forecast_obsolescence (Forecast Obsolescence) - Forecast which artefacts are likely to become obsolete.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- watch_answer (Watch Answer) - Create a watch on an answer to receive alerts when it changes or becomes stale.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- unwatch_answer (Unwatch Answer) - Remove an existing watch by its watch ID.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_watches (Get Watches) - List all active watches for the current agent.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_watch_alerts (Get Watch Alerts) - Retrieve alerts triggered by a specific watch, with optional filtering by time and pagination.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- submit_feature_request (Submit Feature Request) - Submit a new feature request or suggestion to the VaultCrux product team.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- vote_feature_request (Vote on Feature Request) - Cast an upvote on an existing feature request to signal interest.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_feature_requests (Get Feature Requests) - List feature requests with optional filtering by category and status.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- declare_revenue_willingness (Declare Revenue Willingness) - Declare willingness to pay for a feature or category, helping prioritize the product roadmap.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- list_seats (List Seats) - List all seats (members) in the current organisation.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- invite_seat (Invite Seat) - Invite a new member to the organisation by email address.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- change_seat_role (Change Seat Role) - Change the role assigned to an existing organisation seat.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- revoke_seat (Revoke Seat) - Remove a member from the organisation by revoking their seat.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- register_agent (Register Agent) - Self-register a new agent with the VaultCrux platform. No API key or tenant ID required.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- request_sponsor (Request Sponsor) - Request a sponsor for the current agent session. Requires a session token (vcrx_self_ prefixed).

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- list_projects (List Crux Projects) - List all projects on the configured Crux Daemon. Mirrors `corecruxd /v1/projects`.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- get_project_context (Get Crux Project Context) - Detail for a single project — planning target, allowed passports, working tenants.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- list_work (List Crux Work Items) - List work items, optionally filtered by project_id, state, tenant_id, assignee_passport. The kanban surface for cross-agent coordination.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- create_work (Create Crux Work Item) - Create a new work item under a project (defaults: state=planned).

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- update_work_state (Update Crux Work State) - Move a work item to a new state. If the calling passport has agent_work_gate=true the request queues for human approval (returns applied:false).

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- comment_on_work (Comment on Crux Work Item) - Post a comment on a work item — leave context for the next agent or human.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- github_search (Search Crux-Indexed GitHub Corpus) - Search the indexed GitHub corpus (commits, PRs, issues, comments) under repos selected via /v1/integrations/github/repos.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- github_recent_commits (Recent GitHub Commits (Crux-Indexed)) - Recent indexed commits for a selected repo.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- github_open_prs (Open GitHub PRs (Crux-Indexed)) - Indexed PRs in a selected repo (filter open client-side via the returned `state` field).

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- github_open_issues (Open GitHub Issues (Crux-Indexed)) - Indexed issues in a selected repo. Optional `label` for client-side filtering.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp
- github_comments_since (Recent GitHub Comments (Crux-Indexed)) - Recent comments across selected repos — the 'what happened since I last looked' surface.

Prefer `cuecrux_session` as your first and only direct MCP call. It returns a typed capability plan that routes this tool (and every other) to its preferred channel, tier, and cost class. One call per session is enough; the plan is the source of routing truth for all subsequent work. This tool remains directly callable for backward compatibility; the collapsed surface is the intended surface. Endpoint: https://api.vaultcrux.com/platform/mcp

## Resources
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## Prompts
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## Metadata
- Owner: io.github.CueCrux
- Version: 0.1.0
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Mar 26, 2026
- Source: https://registry.modelcontextprotocol.io