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mcp-opensearch

by dmayan-ss
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Python
Remote

mcp-opensearch

Read-only MCP server for exploring and searching OpenSearch 2 clusters. Ideal for log analysis, index exploration, and query execution.

Tools

Tool

Description

ping

Check connectivity — returns cluster name and version

cluster_health

Cluster health status (green/yellow/red), node and shard counts

list_indices

List indices with health, doc count, and size. Optional pattern filter

get_index_mapping

Show field types and structure for an index

search

Execute queries using OpenSearch Query DSL (JSON)

count

Count documents matching an optional query

list_aliases

List all index aliases

get_document

Retrieve a specific document by ID

Related MCP server: openobserve-community-mcp

Installation — Claude Desktop Extension

  1. Build the extension package:

npx @anthropic-ai/mcpb pack .

  1. In Claude Desktop, go to Settings → Extensions and upload mcpopensearch.mcpb.

  2. Configure via the UI:

    • OpenSearch URL — e.g. http://your-opensearch:9200

    • Username / Password — optional, for basic auth

Installation — Claude Code

Add to your .claude/settings.json:

{
  "mcpServers": {
    "opensearch": {
      "command": "uv",
      "args": ["--directory", "/path/to/mcpopensearch", "run", "server.py"],
      "env": {
        "OPENSEARCH_URL": "http://localhost:9200",
        "OPENSEARCH_USERNAME": "",
        "OPENSEARCH_PASSWORD": ""
      }
    }
  }
}

Environment Variables

Variable

Default

Description

OPENSEARCH_URL

http://localhost:9200

OpenSearch cluster URL

OPENSEARCH_USERNAME

(none)

Basic auth username

OPENSEARCH_PASSWORD

(none)

Basic auth password

Query Examples

Search for errors in the last hour:

{
  "query": {
    "bool": {
      "must": [
        {"match": {"level": "ERROR"}},
        {"range": {"@timestamp": {"gte": "now-1h"}}}
      ]
    }
  },
  "sort": [{"@timestamp": "desc"}]
}

Count documents by status code:

{
  "query": {"match_all": {}},
  "aggs": {"status_codes": {"terms": {"field": "response_code"}}}
}

License

MIT

This server cannot be installed

A
license - permissive license
-
quality - not tested
D
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

Resources

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