Elasticsearch MCP Server
Community MCP server for Elasticsearch enabling AI agents to perform full-text searches, manage indices, query documents, and analyze data stored in Elasticsearch clusters.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
API key auth with index-level scope granularity. TLS enforcement depends on cluster configuration — verify before use. Default self-hosted installs may lack auth.
⚡ Reliability
Best When
An agent needs to search or analyze data in Elasticsearch — log analysis, full-text search, aggregations, or vector similarity search.
Avoid When
You need to ingest data into Elasticsearch — this MCP is optimized for read/search operations.
Use Cases
- • Full-text search over Elasticsearch indices from agent workflows
- • Log and event analysis using Elasticsearch aggregations
- • Document retrieval and filtering for RAG pipelines
- • Index management and health monitoring from agents
- • Semantic search with Elasticsearch vector search capabilities
Not For
- • Elasticsearch clusters without REST API access
- • Elasticsearch 6.x (some modern query features require 7.x+)
- • Real-time streaming data ingestion (use Beats/Logstash for that)
Interface
Authentication
Elasticsearch API keys (recommended) or basic auth (username/password). API keys can be restricted to specific indices and operations via document-level security. Self-hosted clusters may have no auth by default — always configure security.
Pricing
Open source (Apache 2 / Elastic License 2.0). MCP server is community-maintained and free. Cloud hosting costs apply for Elastic Cloud.
Agent Metadata
Known Gotchas
- ⚠ Default Elasticsearch installations may have security disabled — always verify auth is configured
- ⚠ Query DSL is complex and verbose — agents need knowledge of Elasticsearch query syntax
- ⚠ Index mappings are schema-dependent — agents must understand the index structure first
- ⚠ Aggregations for analytics can be expensive — use query filters to reduce document sets first
- ⚠ Community MCP (not official Elastic) — may not cover all ES APIs or latest features
- ⚠ Result sizes default to 10 — agents must explicitly set larger sizes for comprehensive results
Alternatives
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Scores are editorial opinions as of 2026-03-06.