Model Context Protocol server for CausalLayer — deterministic AI liability attribution with Bitcoin-anchored, signed certificates. Runs on
No tools declared yet
This listing has not published its tool surface here, so there is nothing to pick. What a client will be asked to approve is whatever the manifest declares at install time.
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p95 latency
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call success
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uptime 90d
0
calls last 7d
What it does
Stands in front of what an agent is about to do: policy written as code, a human asked when it matters, credentials kept apart from the caller, spend limits, and a signed record of what was allowed.
Quickstart
# 1 — install (mcprush login holds a key from your dashboard)
npx mcprush@latest add barzelvault-mcp
# 2 — the plan is chosen at checkout, in the browser
# 3 — ask your agent something
> Stands in front of what an agent is about to do: policy written as code, a human asked when it matters, credentials kept apart from the caller, spend limits, and a signed record of what was allowed..
Publishernot claimed
AGAll 50 servers
agenticweb50 servers
21 categories · 1 installs between them
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine — this server runs on the publisher’s own infrastructure behind our gateway, and what you install is the connection to it.
Claude Codenot declared — it may still work
Claude Code has its own MCP command, and the key rides on it as a header — the gateway refuses a call that carries none. Put your key from Access in $MCPRUSH_KEY, or let npx mcprush@latest add barzelvault-mcp write the same entry for you.
claude mcp add --transport http barzelvault-mcp https://mcprush.com/gw/barzelvault-mcp/mcp \
--header "Authorization: Bearer $MCPRUSH_KEY"Reconnect, or start a new session, and the tools appear in the model’s tool list.
This is a paid listing, so the CLI has to be signed in and the licence has to be on your account — how the login works. Until then the install stops with the price rather than half-writing a config entry.
What it writes
One config entry pointing at the gateway. The server itself runs on the publisher’s own infrastructure, so nothing from this listing executes on your machine.
What you approve
This listing has not published its tool surface here yet, so what a client will ask you to approve is whatever the manifest declares at install time.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
No tool surface on file
The catalogue records 0 tools on this listing, and the manifest behind them has not been imported into the marketplace yet. Nothing is shown here rather than another listing’s tools, which is what this page used to do.
Promost installed
$104 / month
- 5,000 calls a month, included
- 60 calls a minute at peak
- Every tool the listing has
- Cancel any time — the unused days are credited
- Runs behind the gateway, so cancelling stops it
Team
$416 / month
- 25,000 calls a month, included
- 150 calls a minute at peak
- Every tool the listing has
- Cancel any time — the unused days are credited
- Runs behind the gateway, so cancelling stops it
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
No call is billed on its own, and this plan carries no monthly call limit. $104 a month covers every tool at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
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Alert at 80% · then the tool returns a normal MCP error
Used this month: $8.42
$16.58 left
—Grade not published
No rule-by-rule report on file for this release
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
Nothing here has been scanned, and nothing will be until this listing names a source the scanner can read: a package on npm or PyPI, or a public repository. What it publishes today cannot be read from outside, so there is no grade — not a withheld one, an unmeasured one. Nothing on this tab is ever borrowed from another listing.
Release history
Pinned to 1.0.0 — the install command below asks for that release. A pin is part of an install, so it is kept for this visit and written down when you install.
1.0.0
undated
installedNo release note was published with this version.
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no reviews yet
Reviews are earned
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Reviews are earned
Writing one takes an account with at least 50 real tool calls against BarzelVault in the last 90 days. That is the whole gate — there is no other way to post, which is why the counts beside each review are worth reading.
No reviews yet
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes an account with 50 real tool calls against it.