Back to MCP Trust Indexm8ven
C
Caution
70/100
2 months ago

Elasticsearch

Enables natural language interaction with Elasticsearch databases for search functionality and index management without requiring complex query syntax or API knowledge.

→ awesimon/elasticsearch-mcp· npm: @awesome-ai/elasticsearch-mcp· 8.2K installs· listed on pulsemcp

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

awesimon

Source: PulseMCP · also listed on npm

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PulseMCPnpm

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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 4 credentials: API_KEY, ES_API_KEY, ES_PASSWORD, PASSWORD
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@1.8.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.8.0GHSA-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.
🔐 secretAPI_KEYES_API_KEY Elasticsearch API key for authentication (also supports legacy ) No
configCA_CERTES_CA_CERT Path to custom CA certificate for Elasticsearch SSL/TLS (also supports legacy ) No
🔐 secretES_API_KEY"": "your-api-key"
configES_CA_CERTPath to custom CA certificate for Elasticsearch SSL/TLS (also supports legacy CA_CERT) No
configES_HOST"": "your-elasticsearch-host",
🔐 secretES_PASSWORDElasticsearch password for basic authentication (also supports legacy PASSWORD) No
configES_USERNAMEElasticsearch username for basic authentication (also supports legacy USERNAME) No
configHOSTES_HOST Your Elasticsearch instance URL(s) - supports single URL or comma-separated multiple URLs (also supports legacy ) Yes
🔐 secretPASSWORDES_PASSWORD Elasticsearch password for basic authentication (also supports legacy ) No
// 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

11/11 tools missing one or more hints — list_indices (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_mappings (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +8 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 0/11 tool handlers declare input schemas (0%)

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

Tool handlers catch errors

Only 0/11 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@1.8.0 (high), @modelcontextprotocol/sdk@1.8.0 (high)

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

Domain consistency

npm scope @awesome-ai doesn't match GitHub owner awesimon

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
[![M8ven Verified](https://m8ven.ai/badge/mcp/awesome-ai-elasticsearch-mcp-10tcfa?variant=verified)](https://m8ven.ai/mcp/awesome-ai-elasticsearch-mcp-10tcfa)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: b4e91e32b9174bc292e2c8c52dbe8fb1b0af125e
code hash: 9f78b177635f8f2a86090af00fa60f1dbe641c44555cc3905e7747a058cd4542
verified: 6/13/2026, 9:46:34 AM
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