MCP.Market

Opensearch MCP server

by mrfentmen·io.github.mrfentmen/opensearch-mcp·v1.0.2
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Search OpenSearch indices, manage documents, check health and stats.

B75/100grade B
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Safety scan
B75/100

full report

Adoption
New

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If you have run it, two minutes of your experience saves the next person an afternoon.

Opensearch tools (16, 3 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • check_health

    Check the health of the OpenSearch cluster.

  • create_indexwrite action

    Create a new index with optional settings.

  • delete_documentwrite action

    Delete a document by ID from an index.

  • delete_indexwrite action

    Delete an index.

  • get_cluster_stats

    Get cluster-wide statistics.

  • get_document

    Retrieve a document by ID from an index.

  • get_index

    Get information about a specific index.

  • get_mappings

    Get mapping definitions for an index.

  • get_stats

    Get statistics for all indices.

  • get_tasks

    List all tasks in the cluster.

  • index_document

    Add a document to an index.

  • list_indices

    List all indices in the OpenSearch cluster.

  • list_nodes

    List all nodes in the cluster.

  • list_shards

    List all shards in the cluster.

  • search_index

    Search for documents in an index.

  • search_raw

    Search with raw OpenSearch query DSL (advanced usage).

Public scan report

scanner v0.1.10 · 2026-11-01 · same rubric, same numbers if you re-run it

no findings
  • Code scan7 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 85 days ago12/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 75/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Opensearch compares

Against every graded Web search MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
75/100
higher than 45% of 3,472 Web search servers
Tools
16
the typical Web search server has 5
Tools that change things
19%
typical: 0%. Fewer write tools means less an agent can break

What its tools let an agent do: 13 read · 1 create · 2 delete

Release history: 2 versions in the registry since 2026-08-08, latest 2026-09-21, typically one every 44 days.

Install Opensearch in Claude Code, Cursor or VS Code

Runs npx -y @mrfentmen/opensearch-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add opensearch-mcp -- npx -y @mrfentmen/opensearch-mcp
Add to Cursor

What the publisher says

From the Opensearch repository's README, as published. We do not edit it. Read it on GitHub

OpenSearch MCP

An MCP server for OpenSearch, the community-driven, Apache 2.0 search and analytics suite.

What it does

Search through OpenSearch indices, manage documents, create/delete indexes, check cluster health, and monitor statistics. Perfect for AI agents that need to query search indexes.

Tools

  • check_health - Check cluster health status
  • list_indices - List all indices
  • get_index - Get index details
  • create_index - Create a new index
  • delete_index - Delete an index
  • search_index - Search documents in an index
  • search_raw - Search with raw OpenSearch query DSL
  • get_documents - List documents in an index
  • get_document - Get a single document by ID
  • index_document - Add a document to an index
  • delete_document - Delete a document by ID
  • get_stats - Get instance-wide statistics

Install

npx opensearch-mcp

Environment Variables

  • OPENSEARCH_URL - OpenSearch server URL (default: http://localhost:9200)
  • OPENSEARCHAPIKEY - API key for authentication (preferred)
  • OPENSEARCHUSERNAME / OPENSEARCHPASSWORD - Basic auth credentials

Claude Desktop setup

{
  "mcpServers": {
    "opensearch": {
      "command": "npx",
      "args": ["-y", "opensearch-mcp"],
      "env": {
        "OPENSEARCH_URL": "http://localhost:9200",
        "OPENSEARCH_API_KEY": "your-api-key"
      }
    }
  }
}

Example usage

"Search my products index for 'wireless headphones'" "Check if my OpenSearch cluster is healthy" "Create a new index called 'blog-posts'" "How many documents are in my logs index?"

License

MIT

Nothing above is checked by us. What we check is on the safety report.

Opensearch: common questions

Is Opensearch MCP server safe?
Mostly: it is graded B (75/100). Read the Opensearch safety report
How do I install Opensearch?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Opensearch need an API key?
Yes. The registry entry asks for OPENSEARCH_API_KEY, OPENSEARCH_PASSWORD.
Is Opensearch maintained?
The last commit was 86 days ago (2026-08-08). The latest release is v1.0.2.
What can I use instead of Opensearch?
Servers from other publishers that do the same job: obsei MCP server, Free Search MCP server and Legal Data Hunter MCP server.
How does Opensearch compare with other Web search MCP servers?
safety score 75/100 (higher than 45% of 3,472 Web search servers); tools 16 (the typical Web search server has 5); tools that change things 19% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Opensearch

Same job from other publishers: the closest match first, then the best rated.

  • obsei
    Self-hosted customer feedback with PII stripped at ingest: search, stats and themes with citations.
    A
  • Free Search
    No-API-key web search, page fetching and document reading across many engines. Local-first.
    B
  • Legal Data Hunter
    Search 18M+ legal documents worldwide — case law, legislation, and doctrine across 110+ countries.
    A
  • Documentation
    Local-first document management and semantic search for AI coding agents
    A
  • Outline MCP Server
    Connect AI assistants to Outline for document search, reading, and management
    B

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