Release Notes

1.9.0

Released March 24, 2026

New features and updates:

• Adds a setup utility to simplify installation and configuration of the MCP Server for popular AI clients. To use the utility, run npx mongodb-mcp-server@latest setup and follow the interactive setup steps. For more details, see MCP Server setup utility.

• MCP Server is now compatible with Claude Code and Open Code.

• Adds new Atlas Stream Processing tools: atlas-streams-discover, atlas-streams-build, atlas-streams-manage, and atlas-streams-teardown.

• Moves vector search and lexical search index management tools from public preview. Those tools can now operate on lexical and vector search indexes when available.

• Adds a service to collect and report metrics about tool usage.

• Removes MCP automated embeddings feature.

• Adds support for deploying the MCP Server to Amazon Bedrock AgentCore.

Full release notes available on GitHub.

1.8.1

Released March 13, 2026

Bug Fixes:

• Changes the behavior of the find tool to also return the total number of documents the query matched without the limit clause.

• Fixes an issue where telemetry reported duplicate events.

Full release notes available on GitHub.

1.8.0 and Earlier

For full release notes from versions 1.8.0 and earlier, see the MongoDB MCP Server Releases on GitHub.