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MCP Server Codecov
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MCP Server Codecov

A Model Context Protocol server that provides tools for querying Codecov code coverage data, supporting codecov.io and self-hosted instances.
Developer toolsMonitoring#Code coverage#Development tools#MCP service.TypeScript
2 points
6.9K
Open Site

Overview

Installation

Tools List

Alternatives

What is the Codecov MCP Server?

The Codecov MCP Server is a bridge that connects the Claude AI assistant with the Codecov code coverage platform. It allows you to query and analyze code coverage data directly in Claude without leaving the conversation interface. Through simple natural language commands, you can obtain coverage information at the file, commit, and repository levels.

How to use the Codecov MCP Server?

Using the Codecov MCP Server is very simple: 1) Obtain a Codecov API token, 2) Set environment variables, 3) Install the MCP server, 4) Start querying coverage data in Claude. The entire process can be configured in just a few minutes.

Use cases

The Codecov MCP Server is particularly suitable for the following scenarios: quickly checking code coverage during the development process, verifying test coverage during code reviews, sharing coverage data in team collaboration, and monitoring the trend of coverage changes in the continuous integration process.

Main features

File-level coverage analysis
Obtain line-by-line coverage data for a specific file, including which code lines are covered by tests and which are not. It supports specifying branches, tags, or commit SHAs.
Commit coverage query
Retrieve the coverage statistics for a specific commit, including metrics such as overall coverage, line coverage, and branch coverage.
Overall repository coverage
Get an overview of the coverage of the entire repository, including coverage comparisons between different branches and historical trend data.
Support for self-hosted instances
It not only supports the official codecov.io service but also supports enterprise self-hosted Codecov instances, allowing flexible configuration of API endpoints.
Token authentication
Use the Codecov API token for secure authentication to ensure that only authorized users can access the coverage data.
Advantages
Seamless integration: Access coverage data directly in the Claude conversation without switching tools
Simple configuration: Installation and configuration can be completed within a few minutes
Flexible deployment: Supports codecov.io and self-hosted instances
Real-time query: Instantly obtain the latest coverage information
Natural language interaction: Query data using simple natural language commands
Limitations
Requires a Codecov API token: Additional authentication configuration is required
Only supports GitHub repositories: Currently mainly supports GitHub, with limited support for other platforms
Depends on network connection: Needs to be able to access the Codecov API service
Data delay: There may be a few minutes of synchronization delay for the coverage data

How to use

Obtain an API token
Log in to your Codecov account, go to Settings → Access tab, and generate a new API token (Note: not the upload token).
Set environment variables
Set the API token as an environment variable so that the MCP server can access it.
Install the MCP server
Use the Claude Code CLI to add the MCP server configuration.
Verify the installation
Check if the MCP server is successfully connected.
Start using
Query coverage data directly in the Claude conversation.

Usage examples

Check coverage during code review
When reviewing a Pull Request, quickly check the test coverage of the modified files to ensure that the newly added code has sufficient test coverage.
Monitor coverage trends
Regularly check the overall coverage of the repository to ensure that the test coverage does not decline during development.
Debug test failures
When a CI test fails, quickly check the coverage changes of the relevant files to help locate the problem.

Frequently Asked Questions

Why do I receive a 401 Unauthorized error?
How do I configure a self-hosted Codecov instance?
What should I do if the environment variables do not take effect?
Which code repository platforms are supported?
Is there a delay in the coverage data?
How do I update the MCP server version?

Related resources

npm package page
View the latest version, download statistics, and version history
GitHub repository
Source code, issue tracking, and contribution guidelines
Codecov official documentation
Complete documentation for the Codecov API and features
Model Context Protocol documentation
Official specifications and guidelines for the MCP protocol
Test coverage report
View the test coverage of this MCP server itself

Installation

Copy the following command to your Client for configuration
{
  "mcpServers": {
    "codecov": {
      "command": "npx",
      "args": ["-y", "mcp-server-codecov"],
      "env": {
        "CODECOV_BASE_URL": "https://codecov.io",
        "CODECOV_TOKEN": "your-codecov-token-here"
      }
    }
  }
}

{
  "mcpServers": {
    "codecov": {
      "command": "npx",
      "args": ["-y", "mcp-server-codecov"],
      "env": {
        "CODECOV_BASE_URL": "https://codecov.io",
        "CODECOV_TOKEN": "${CODECOV_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "codecov": {
      "command": "node",
      "args": ["/absolute/path/to/codecov-mcp/dist/index.js"],
      "env": {
        "CODECOV_BASE_URL": "https://codecov.io",
        "CODECOV_TOKEN": "${CODECOV_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "codecov": {
      "command": "node",
      "args": ["/path/to/mcp-server-codecov/dist/index.js"],
      "env": {
        "CODECOV_BASE_URL": "https://codecov.io",
        "CODECOV_TOKEN": "your-codecov-token-here"
      }
    }
  }
}
Note: Your key is sensitive information, do not share it with anyone.

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