Spider MCP Server (spider-rs/spider-cloud-mcp-v2) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 22 tools. No publisher has claimed this listing.

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D
Caution
56/100

Spider MCP Server

Enables AI agents to crawl, scrape, search, and automate browsers with anti-bot bypass, providing fast web access via 22 tools.

→ spider-rs/spider-cloud-mcp-v2· 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.

How we verified

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Who stands behind it

spider-rs

Source: Glama

Is this your MCP?

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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: 1 critical, 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 1 credential: SPIDER_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes22 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.

spider_crawl
spider_scrape
spider_search
spider_links
spider_screenshot
spider_unblocker
spider_transform
spider_get_credits
spider_ai_crawl
spider_ai_scrape
spider_ai_search
spider_ai_browser
spider_ai_links
spider_browser_open
spider_browser_navigate

Navigate the browser to a URL. Waits for the page to finish loading before returning the URL and title.

spider_browser_click

Click an element on the page. Waits for the element to appear before clicking.

spider_browser_fill
spider_browser_screenshot
spider_browser_content

Get the current page content. Returns the full HTML or extracted text of the page.

spider_browser_evaluate
spider_browser_wait_for

Wait for a condition on the page. Use after navigation or actions that trigger dynamic content loading.

spider_browser_close
// known CVEs in dependencies1 critical3 high

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

criticalvitest@4.0.18GHSA-5xrq-8626-4rwp

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

high@modelcontextprotocol/sdk@1.12.1GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.12.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.1GHSA-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.
🔐 secretSPIDER_API_KEYexport ="your-api-key"
// 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

22/22 tools missing one or more hints — spider_crawl (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); spider_scrape (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); spider_search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +19 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

Only 10/22 tool handlers declare input schemas (45%)

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

Tool test coverage

9/22 tools referenced in tests (41%)

Write tests that reference each tool by name so every tool has at least one test.

Production dependencies are patched

0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)

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

Dev dependencies

1 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: d22f1061203af06e95ee324d6e91bc6d9b9a4c0f
code hash: 18d7da9bc61183c8d7a292cce905c53f24a15c88e1fe5be8f17a86392d51cf7b
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