square-mcp (ampcome-mcps/square-mcp) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.

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54/100
14 days ago

square-mcp

→ ampcome-mcps/square-mcp· listed on modelscope

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

ampcome-mcps

Source: modelscope

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// 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: ACCESS_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 critical3 high1 low

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

criticalform-data@4.0.0GHSA-fjxv-7rqg-78g4

form-data uses unsafe random function in form-data for choosing boundary

high@modelcontextprotocol/sdk@1.5.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.5.0GHSA-w48q-cv73-mx4w

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

highform-data@4.0.0GHSA-hmw2-7cc7-3qxx

form-data: CRLF injection in form-data via unescaped multipart field names and filenames

lowyaml@2.7.0GHSA-48c2-rrv3-qjmp

yaml is vulnerable to Stack Overflow via deeply nested YAML collections

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.
🔐 secretACCESS_TOKENYOUR_SQUARE_ACCESS_TOKEN SANDBOX=true npx square-mcp-server start
configDISALLOW_WRITESRestrict to read-only operations DISALLOW_WRITES=true
configPRODUCTIONUse Square production environment PRODUCTION=true
configSANDBOXACCESS_TOKEN=YOUR_SQUARE_ACCESS_TOKEN =true npx square-mcp-server start
configSQUARE_VERSIONSpecify Square API version SQUARE_VERSION=2025-04-16
// 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

3/3 tools missing one or more hints — make_api_request (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_type_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_service_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). 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.

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

1 critical, 3 high severity in production deps — form-data@4.0.0 (critical), @modelcontextprotocol/sdk@1.5.0 (high)

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

Dependency freshness

2/12 production deps stale: escape-html@2023-11-16 (2.7y), node-fetch@2023-11-30 (2.7y)

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 4 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
[![M8ven Verified](https://m8ven.ai/badge/mcp/ampcome-mcps-square-mcp-1shuj2?variant=verified)](https://m8ven.ai/mcp/ampcome-mcps-square-mcp-1shuj2)
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commit: 2a05abf78789cc9eccf158d9f96ffad2d48189a9
code hash: 843fd0f99bef189b859b515ca824d292dd0a8ac3fe461c589b581f27d5a9de81
verified: 8/13/2026, 8:38:23 PM
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