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MCP verified MIT Self-run

Mcp Client Benchmark

mcp-portal-labs-infrastructure-mcp-client-benchmark · by portal-labs-infrastructure

An automated benchmark and public leaderboard for Model-Context Protocol (MCP) clients. Test your client and see how it ranks!

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Install

$ agentstack add mcp-portal-labs-infrastructure-mcp-client-benchmark

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

Verified badge

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[![AgentStack Verified](https://agentstack.voostack.com/badges/verified.svg)](https://agentstack.voostack.com/security/report/mcp-portal-labs-infrastructure-mcp-client-benchmark)

Reliability & compatibility

✓ Security review passed
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Declared compatibility

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Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
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About

MCP Client Benchmark

[](https://opensource.org/licenses/MIT)

An automated benchmark and public leaderboard for Model-Context Protocol (MCP) clients. This project provides a standardized testing ground to evaluate client capabilities against a consistent set of tasks.

The goal is to foster a robust ecosystem of capable clients by providing developers with a transparent, objective, and easy-to-use evaluation tool.

Live Dashboard

View the live results, see how different clients perform, and check your own run history on the public dashboard:

➡️ View the Leaderboard at remote-mcp-servers.com/clients

Key Features

  • Automated Testing: A state machine-driven server that guides clients through a series of capability checks.
  • Rubric-Based Scoring: A detailed scoring system that awards points based on the successful completion of specific tasks.
  • Public Leaderboard: A live, ranked dashboard showcasing the performance of all participating clients.
  • Detailed Run Analysis: Drill down into any specific run to see a full scorecard and identify areas for improvement.
  • Easy Participation: Simply add our server URL to your favorite MCP client.

How to Participate

Getting your client on the leaderboard is simple.

  1. Open your preferred MCP client (e.g., Portal One, MCP Inspector).
  2. Find the option to add a new remote server.
  3. When prompted for the URL, use the following endpoint:
https://mcp-client-benchmark.remote-mcp-servers.com/mcp

Once connected, the benchmark server will appear in your client. Interacting with it will start the evaluation process. After the run is complete, refresh the leaderboard page to see your results.

The Benchmark Rubric

Our scoring system is designed to be transparent. Points are awarded based on the successful completion of specific tasks that map to core MCP capabilities.

| Check ID | Description | Max Points | | --------------------- | ------------------------------------------------------------------ | :--------: | | elicitation_support | Client correctly handles a server-initiated elicitation/request. | 25 | | sampling_support | Client uses sampling/create_message to generate dynamic text. | 20 | | resource_reading | Client can read content from a dynamically enabled resource. | 25 | | code_verification | Client submits data from a resource to a tool correctly. | 25 | | Total | | 95 |

Contributing

Contributions are welcome! Whether it's improving the benchmark logic, enhancing the dashboard, or fixing a bug, please feel free to open an issue or submit a pull request.

  1. Fork the repository.
  2. Create a new feature branch. (git checkout -b feature/your-amazing-feature)
  3. Commit your changes. (git commit -m 'Add some amazing feature')
  4. Push to the branch. (git push origin feature/your-amazing-feature)
  5. Open a Pull Request.

License

This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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