Elasticsearch MCP Server

Connects AI agents to Elasticsearch clusters via MCP, exposing tools to list indices, inspect mappings, execute Query DSL searches, run ES|QL queries, and inspect shard distributions. Note: officially deprecated in favor of Elastic Agent Builder's native MCP endpoint in Elastic 9.2+.

Evaluated Mar 06, 2026 (0d ago) vlatest

Homepage ↗ Repo ↗ Other elasticsearch search esql rust docker elastic deprecated

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

Elasticsearch MCP. API key with index-level permissions. Search can expose sensitive indexed data — scope carefully. TLS required in production. X-Pack security features.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

You are on Elastic 8.x and need a quick MCP bridge to query Elasticsearch from Claude Desktop or another MCP client without standing up additional infrastructure.

Avoid When

You are on Elastic 9.2+ or starting a new project; the project is officially deprecated and the native endpoint is preferred.

Use Cases

• Natural language querying of Elasticsearch indices from an LLM client
• Inspecting index structure and shard health during incident response
• Running ES|QL analytics queries via conversational AI

Not For

• Elasticsearch clusters below version 8.x
• Write operations (indexing, creating/deleting indices)
• New projects targeting Elastic 9.2+ (use the native Agent Builder MCP endpoint instead)

Interface

REST API

GraphQL

gRPC

MCP Server

Yes ↗

SDK

Webhooks

Authentication

Methods: api_key basic_auth env_var

OAuth: No Scopes: No

Supports ES_API_KEY or ES_USERNAME/ES_PASSWORD via environment variables. SSL verification can be skipped with ES_SSL_SKIP_VERIFY=true (not recommended in production).

Pricing

Model: open_source

Free tier: Yes

Requires CC: No

Apache-2.0 open source. Requires a running Elasticsearch cluster (self-hosted or Elastic Cloud, which has its own costs).

Agent Metadata

Pagination

none

Idempotent

Yes

Retry Guidance

Not documented

Known Gotchas

⚠ Project is officially deprecated; new work should target Elastic 9.2+ native MCP endpoint.
⚠ Only read operations exposed; agents cannot index or modify data.
⚠ SSL verification bypass flag (ES_SSL_SKIP_VERIFY) is a security risk if used in production.
⚠ Streamable-HTTP/SSE modes require additional mcp-proxy installation for stdio bridging.

Alternatives

mcp-server-qdrant mcp-server-opensearch elastic-agent-builder-mcp

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Elasticsearch MCP Server.

$99

API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-06.