Open source MCP Servers for AWS
C-Rank Grade: A (Welcoming) - 58/100
External PR Merge Rate: 56%
Response Time: 2d
First Timer Success: 49%
awslabs/mcp has a recorded first-timer success rate of 49.4%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in awslabs/mcp respond to incoming external pull requests in approximately 50.5 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 58.4 places awslabs/mcp in the A tier.
The external contributor pull request merge rate for awslabs/mcp is 56.2%, based on public PR activity from non-core contributors.
awslabs/mcp currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Balanced & professional review environment in awslabs/mcp. Maintains strict focus on technical quality and test standards.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/awslabs/mcp?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 01:00 UTC (01:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 22:00 to 02:00 UTC (22:00 - 02:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~34 hours (71% approval). Large PRs (>500 lines) take ~254 hours (25% approval). Keep your diff compact for rapid review.
Hi from the Anthropic MCP Review Team, During our review of redshift-mcp-server for inclusion in the MCP Directory, we identified the following changes that need to be made: Required Changes Add tool annotations — MCP tool annotations are required for directory inclusion. Add an icon — An icon.png (or icon.svg) is required in the bundle for directory listing display. Add prompt examples — Include 3+ working prompt examples in the README showing how users interact with the tools. Recommended Add a support URL — A support field in manifest.json (e.g., linking to this repo's issues page) helps users get help. Once these changes are made, please resubmit your .mcpb bundle and we'd be happy to review it again! Best, Anthropic MCP Review Team
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When evaluating whether to contribute to awslabs/mcp, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of awslabs/mcp acknowledge new external contributions in approximately 2 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 56.2% were successfully merged into the primary branch.
awslabs/mcp has a recorded first-timer success rate of 49.4%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~2 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 58.4 places awslabs/mcp in the Welcoming tier.
The external pull request merge rate is 56.2%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, awslabs/mcp currently has 1 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for awslabs/mcp are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.