Define the job first
Start with a concrete task rather than a list of popular integrations. Write down the information the assistant needs, the actions it should perform, and the systems it must not access. This makes it easier to reject servers that expose far more capability than the workflow requires.
Confirm provenance
- Is the publisher the service provider, a reference project, or a community maintainer?
- Does the directory link to the canonical repository or documentation?
- Is the project actively maintained?
- Are releases and changes documented?
- Is there a responsible way to report problems?
An official implementation can reduce uncertainty about ownership, but it still requires a permissions and operational review.
Check compatibility
- Does the server support your client?
- Do both products support the same transport?
- Does it run on your operating system and architecture?
- Are the runtime and package-manager requirements acceptable?
- Can your organization reach a remote endpoint through its network controls?
Review the transport guide when documentation uses unfamiliar connection terminology.
Compare access and security
- Which tools, resources, and prompts are exposed?
- Which operations can modify or delete data?
- Can credentials and paths be restricted?
- Is a dedicated test account available?
- Where is remote data processed and retained?
- Can access be audited and revoked?
Use the security evaluation guide for sensitive connections.
Evaluate operational fit
A proof of concept can tolerate manual setup that becomes expensive across a team. Consider updates, version pinning, logging, availability, support, rate limits, and pricing. Decide who owns the integration after the initial experiment.
For competing implementations, test the same small workflow with each candidate. Record setup time, tool clarity, result quality, permissions, error handling, and maintenance signals. Avoid choosing solely by repository stars.
Make a reversible decision
Begin with read-only access and non-production data. Document why the server was selected and schedule a review. If the project becomes unmaintained or requests broader permissions, the record makes it easier to reassess or replace.
Browse candidates in the MCP server directory, then follow the installation guide once you have selected an implementation.