Sentiment402 MCP Adapter (kytona/sentiment402-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.

Back to MCP Trust Indexm8ven
C
Caution
68/100
2 months ago

Sentiment402 MCP Adapter

Provides access to Sentiment402 market sentiment data for global markets, crypto, TradFi, and specific assets, with built-in support for x402 micropayment protocol when API responses require payment.

→ kytona/sentiment402-mcp· 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

kytona

Source: Glama

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Install from

Glama

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// key findings
⚠️
Known vulnerabilities in dependencies: 2 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 1 credential: SENTIMENT402_X402_PRIVATE_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies2 high

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

high@modelcontextprotocol/sdk@1.24.3GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.24.3GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

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.
configSENTIMENT402_API_BASE_URL(optional) — default https://sentiment-api.kytona.com
configSENTIMENT402_API_VERSION(optional) — v1 (default v1)
configSENTIMENT402_CACHE_TTL_MS(optional) — cache TTL in ms (default 60000)
configSENTIMENT402_MCP_SERVER_ARGSSENTIMENT402_MCP_SERVER_CMD / to customize the server process
configSENTIMENT402_MCP_SERVER_CMD/ SENTIMENT402_MCP_SERVER_ARGS to customize the server process
configSENTIMENT402_MCP_TOOL(default get_global_snapshot)
configSENTIMENT402_MCP_TOOL_ARGS(JSON string)
configSENTIMENT402_USER_AGENT(optional) — default sentiment402-mcp/0.1.0
configSENTIMENT402_X402_MAX_PAYMENT(optional) — max payment in base units (default 100000, i.e. $0.10 USDC)
🔐 secretSENTIMENT402_X402_PRIVATE_KEY(optional) — EVM private key for auto-paying x402 requests
// 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

4/4 tools missing one or more hints — get_global_snapshot (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_crypto_pulse (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_tradfi_pulse (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 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 0/4 tool handlers declare input schemas (0%)

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

Tool handlers catch errors

Only 0/4 tool handlers wrap calls in try/catch (0%)

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

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.24.3 (high), @modelcontextprotocol/sdk@1.24.3 (high)

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

Domain consistency

npm scope @sentiment402 doesn't match GitHub owner kytona

Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.

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 7 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: 3bf6b4e730d25acb225ffe816f7254702664a020
code hash: 7c374ac465ac91603f476c2ee6c1a2535dbd65ff12a3f19dc848d4943ecbd1cd
verified: 6/18/2026, 11:52:29 AM
view raw JSON →
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