Installation is not the finish line
An MCP server sits between an AI application and another system. Changes to the client, server, transport, runtime, API, or credentials can affect the connection. A small maintenance routine prevents abandoned integrations and unexpected access from accumulating.
Keep an inventory
Record each enabled server's purpose, source, deployment model, owner, credentials, allowed resources, and review date. Remove connections that no longer support an active workflow.
For team-managed servers, include a contact and a recovery plan so that the integration does not depend on one person's account or machine.
Review updates deliberately
Read release notes before changing important deployments. An update may add tools, request new permissions, change configuration fields, or retire a transport. Test material updates with non-production resources before broad rollout.
Pin versions when repeatability matters and the installation method supports it. Pinning reduces surprise, but it also creates responsibility for monitoring security and compatibility updates.
Rotate and revoke access
Follow the underlying service's credential policy. Rotate long-lived secrets, remove former users, and revoke credentials for retired servers. Verify that OAuth connections and service accounts appear in the provider's access-management interface when applicable.
Do not wait for a credential leak to test the revocation procedure.
Monitor useful signals
Useful operational signals include startup failures, authentication errors, tool error rates, latency, rate-limit responses, and upstream outages. Avoid logging secrets or unnecessarily retaining sensitive tool inputs and outputs.
For local integrations, periodically confirm that the configured executable still points to the intended package or binary. For remote integrations, monitor the provider's status and material policy changes.
Schedule a lightweight review
For ordinary development tools, a quarterly review may be sufficient. Sensitive or production-connected integrations may need more frequent review. Confirm that the server is still maintained, the workflow still needs it, and its permissions remain proportionate.
Use the security evaluation guide when adopting a new implementation and the troubleshooting guide when an existing connection stops working.