BrowserCard-AI-Broker (rozek/browsercard-ai-broker) is an MCP server listed on the M8ven Trust Index. It scores 54 out of 100, grade D. It declares 29 tools. No publisher has claimed this listing.

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D
Caution
54/100

BrowserCard-AI-Broker

An MCP server that lets an LLM build, inspect and drive a running BrowserCard deck live in the browser.

→ rozek/browsercard-ai-broker· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

rozek

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Known vulnerabilities in dependencies: 2 critical, 4 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 1 credential: BC_ACCESS_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes29 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

connection_status
deck_get
deck_patch

Updates one or more metadata properties of the currently loaded deck.

deck_save

Instructs BrowserCard to persist the current deck state to its internal storage (IndexedDB).

list_cards

Lists all cards in the deck with their id, name, widget count, and whether a script is present.

list_widgets

Lists all widgets on a card with id, name, type, visibility, and pixel position.

find

Searches the deck for cards or widgets matching one or more criteria.

card_get

Returns the properties of a card, excluding its widgets.

card_patch

Updates one or more properties of a card.

card_add
card_delete

Deletes a card and all its widgets from the deck.

card_reorder

Moves a card to a new position (0-based) within the deck.

widget_get

Returns all properties of a widget, including type-specific fields.

widget_patch

Updates one or more properties of a widget. The widget type is immutable.

widget_add
widget_delete

Deletes a widget from a card.

widget_transfer

Moves a widget from one card to another, preserving all its properties.

widget_reorder
widget_get_rect
widget_set_rect
script_get
script_set
extras_get
extras_set

Writes a custom property on an element. Rejects reserved schema key names.

extras_delete

Deletes a custom property from an element.

live_eval
live_send
live_navigate

Navigates to a card by name, id, or 0-based index.

live_screenshot

Captures the current rendered state of the connected BrowserCard as a PNG image.

// known CVEs in dependencies2 critical4 high2 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@2.0.0GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

criticalvitest@2.0.0GHSA-9crc-q9x8-hgqq

Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

high@modelcontextprotocol/sdk@1.12.0GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretBC_ACCESS_TOKENyes — shared secret; must match the token configured in BrowserCard. The process exits immediately if it is unset.
configBC_BROKER_PORTno 3457 WebSocket port BrowserCard connects to (/bc)
configBC_MCP_HOSTno 127.0.0.1 interface the MCP HTTP server binds to
configBC_MCP_PORTno 3456 port the MCP client connects to (/mcp)
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

29/29 tools missing one or more hints — connection_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); deck_get (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); deck_patch (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +26 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

22/29 tool handlers declare input schemas (76%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 0/29 tool handlers wrap calls in try/catch (0%)

Wrap each tool handler body in try/catch and return a structured error response.

Production dependencies are patched

0 critical, 4 high severity in production deps — @modelcontextprotocol/sdk@1.12.0 (high), @modelcontextprotocol/sdk@1.12.0 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dev dependencies

2 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
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commit: c9e3386056b59456a43f771f83485a585acb0d63
code hash: fb12ac011b87722e3b92bc0298e44ca4bdb2487de8da6721afe451280fb9c4dc
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