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Side-by-side MCP evidence comparison
Evidence fieldopensearchMCP100 RecommendedElastic MCPMCP100 Recommended
Task fit
Best for
  • Search and observability investigation against governed OpenSearch deployments.
  • Connect agents to Elastic search, observability, and security data.
  • Teams already using Elastic that can test with non-sensitive data and least privilege.
Not ideal for
  • Teams outside the publisher ecosystem or without least-privilege credentials
  • Users who need an MCP100-recommended recommendation today
  • Unattended production workflows before permissions and failure behavior are reviewed
Avoid when
  • The connected identity is broader than the task requires
  • Tool calls cannot be reviewed before consequential mutations
  • The connected data or account cannot be safely exposed to the selected AI client
  • You cannot verify least-privilege access and review write-capable tool calls
Provenance
Provenance details

First-party MCP

ecosystem:opensearch · Publisher source ↗

First-party MCP

Elastic · Publisher source ↗

Maintenance
Maintenance details

Repo: Sep 19, 2026

Package: Not documented

Repo: Not documented

Package: Not documented

Popularity evidence
GitHub stars

154

GitHub stars · checked 2026-09-24T04:15:17.490000Z

Not documented
Package downloads / 30 days

314,920

package downloads / 30 days · checked 2026-09-24T04:20:21.613000Z

No reliable download data
Client coverage
Client coverage details
Claude Code✓ Local stdio
Claude Desktop✓ Local stdio
Codex✓ Local stdio
VS Code✓ Local stdio
Cursor✓ Local stdio
OpenCode✓ Local stdio
Claude Code✓ Streamable HTTP
Claude Desktop✓ Streamable HTTP
Codex✓ Streamable HTTP
VS Code✓ Streamable HTTP
Cursor✓ Streamable HTTP
OpenCode✓ Streamable HTTP
Client coverage noteLocal stdio runs on your computer. Streamable HTTP connects to a remotely hosted MCP server.
Access and data
AuthenticationThe publisher documents OpenSearch credential and transport configuration.Elastic API-key and RBAC privilege boundaries remain primary. OAuth 2.1 applies only to deployment and product paths where Elastic documents it, including the current Agent Builder and Elastic Cloud Serverless flow; do not generalize that claim to every Elastic MCP deployment.
CostThe MCP integration has no separately verified MCP100 price conclusion. Publisher subscriptions, API usage, compute, storage, and AI-client charges may apply.No MCP100 cost conclusion is published yet. The publisher's account plan, API usage, infrastructure, or per-action charges may apply.
PermissionsOpenSearch roles, index permissions, and configured credentials control readable and writable resources.Exact permissions and the read/write boundary have not yet completed MCP100 independent review; consult the linked publisher sources and use the narrowest available scope.
Data handlingAuthorized service data and tool results pass through the MCP server to the connected AI client. Review the publisher and client data policies before using sensitive search & research information.Publisher-accessible account or application data may be returned to the MCP client and its selected model. Retention and subprocess behavior require candidate-specific review.
Limitations
Tradeoffs
  • Search results can contain sensitive documents and unconstrained queries can consume cluster resources.
  • First-party provenance and a clear task improve confidence, but do not replace an independent permissions and usability review.
  • Client transport compatibility does not prove that authentication, scopes, failure handling, and every tool behave safely.
Risk contextSearch results can contain sensitive documents and unconstrained queries can consume cluster resources. Use a test environment where practical, least-privilege credentials, narrowly enabled tools, and explicit confirmation for mutations. MCP100 did not execute third-party server code during this documentation review.Use a test workspace or non-production account, least privilege, read-only controls where available, explicit approval for mutations, and credential revocation after evaluation.
Evidence date
Editorial review2026-07-302026-09-05
Candidate evidence2026-09-24T04:25:05.554391Z2026-09-24T04:25:05.554391Z

Popularity, maintenance, fit, permissions, and client support are independent evidence fields.

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