Who it is for
People and teams working across more than one AI assistant on the same project.
Carry project state and handoffs between different AI assistants
Overview
Arkon Vault addresses a problem created by using several assistants: each starts without knowing what the others established. It holds project state deliberately, so work can resume anywhere.
Claude can preflight a task, find the authoritative project and next action, accept or create a structured handoff, publish a checkpoint, preserve a decision, and search shared context. The boundary is stated clearly: the connector stores only what a user sends through its tools, and does not ingest the surrounding conversation or read local files. An optional Windows companion, Arkon Sync, is separate and opt-in. Community tier.
People and teams working across more than one AI assistant on the same project.
The endpoint asks for credentials before naming anything, so thirteen is the publisher's figure. Preflight checks, handoff creation and acceptance, checkpoint publishing, decision records and context search are the groupings described.
Availability
Arkon Vault is listed in the Claude connectors directory only. Zachary Hammons has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one.
Claude listing
Arkon Vault publishes 13 tools to Claude. That is a mid-sized surface: 54.3% of the 1,253 Claude-listed connectors expose fewer.
The median Claude-listed connector filed under Productivity publishes 12, so this one runs one tool above its bucket's median and ranks 224th of 462 by tool count.
It falls in the 11-20 tools band, which holds 22.5% of the Claude directory.
Arkon Vault publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally.
Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there.
https://vault.arkoncybersecurity.com/mcp Arkon Vault is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality.
In the publisher's words
Arkon Vault is a private AI work-continuity layer for people and teams using more than one AI. Claude can preflight work, find the authoritative project and next action, accept or create structured handoffs, publish checkpoints, preserve decisions, search shared context, and save project state. The MCP connector stores continuity content a user deliberately sends through Vault tools; it does not automatically ingest the surrounding Claude conversation or read local files. Optional Arkon Sync is separate, opt-in Windows software. It sends limited session-derived project records from supported local AI sessions—including title, a brief summary derived from session metadata or the first user message, AI platform, last-active time, message count, working directory, deep link, and session ID—to Arkon Vault's servers, where they are stored in the user's tenant-isolated private vault. It does not upload complete raw transcripts or full assistant responses. Users can view records in the Vault dashboard, download a tenant-scoped JSON export from Account → Your data, or submit or cancel a verified deletion request there. Details: https://vault.arkoncybersecurity.com/data-deletion. The MCP vault_sync tool only refreshes the server-side continuity index and any configured Notion mirror; it cannot start Arkon Sync or upload AI conversations.
Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it.
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This is an independent catalogue entry compiled by Node8 from Arkon Vault's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Zachary Hammons, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.