{"generatedAt":"2026-10-24T12:11:27.697Z","canonicalUrl":"https://agentbreakwatch.vercel.app/p/elasticsearch-mcp-pypi","llmsTxtUrl":"https://agentbreakwatch.vercel.app/p/elasticsearch-mcp-pypi/llms.txt","categoryHub":{"slug":"database-backend","title":"Database, SQL & Vector DB MCP Servers Stability Index","url":"https://agentbreakwatch.vercel.app/c/database-backend"},"tldrVerdict":"Elasticsearch & OpenSearch MCP Server (elasticsearch-mcp-server) is currently at v2.1.6 on PYPI (published 2026-10-19), with a 90-day Stability Score of 86/100 (B+) and MEDIUM schema drift risk. Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx elasticsearch-mcp-server@latest deployments risk parameter drift across list_indices and get_mappings.","package":{"slug":"elasticsearch-mcp-pypi","packageName":"elasticsearch-mcp-server","registry":"pypi","kind":"mcp","subcategory":"Database & Backend MCP","displayName":"Elasticsearch & OpenSearch MCP Server","vendor":"Elastic","githubRepo":"elastic/mcp-server-elasticsearch","breakingSummary":"Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx elasticsearch-mcp-server@latest deployments risk parameter drift across list_indices and get_mappings.","schemaDriftRisk":"medium","affectedSymbols":["list_indices","get_mappings","search","esql"],"migrationBefore":"\"elasticsearch-mcp-pypi\": {\n  \"command\": \"uvx\",\n  \"args\": [\"elasticsearch-mcp-server\"]\n}","migrationAfter":"\"elasticsearch-mcp-pypi\": {\n  \"command\": \"uvx\",\n  \"args\": [\"elasticsearch-mcp-server@2.1.6\"],\n  \"env\": { \"FASTMCP_LOG_LEVEL\": \"ERROR\" }\n}","description":"MCP Server for interacting with Elasticsearch and OpenSearch","latestVersion":"2.1.6","latestPublishedAt":"2026-10-19T15:14:33.066027Z","recentVersions":[{"version":"2.1.6","publishedAt":"2026-10-19T15:14:33.066027Z"},{"version":"2.1.5","publishedAt":"2026-10-13T15:49:59.360380Z"},{"version":"2.1.4","publishedAt":"2026-10-02T07:47:46.239126Z"},{"version":"2.1.3","publishedAt":"2026-08-16T12:59:45.146936Z"},{"version":"2.1.2","publishedAt":"2026-05-22T14:41:39.031056Z"},{"version":"2.1.1","publishedAt":"2026-05-06T14:59:06.159339Z"}],"releasesLast90d":4,"dependenciesCount":10,"license":"Apache License Version 2","registryUrl":"https://pypi.org/project/elasticsearch-mcp-server/","githubUrl":"https://github.com/elastic/mcp-server-elasticsearch","installCommand":"uvx elasticsearch-mcp-server@2.1.6","stabilityScore":86,"stabilityGrade":"B+"}}