An MCP server that combines Gemini, Perplexity, and Stack Overflow to give Claude (or any MCP client) a multi-source second take on tough coding problems.
second-opinion-mcp-server is an MCP project maintained in the politwit1984/second-opinion-mcp-server repository. The maintainer describes its purpose as “An MCP server that combines Gemini, Perplexity, and Stack Overflow to give Claude (or any MCP client) a multi-source second take on tough coding problems”. Read the project documentation for the complete scope.
The project provides a local client configuration using node. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.
The example declares GEMINI_API_KEY, PERPLEXITY_API_KEY, STACK_EXCHANGE_KEY. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
{
"mcpServers": {
"second-opinion": {
"command": "node",
"args": [
"/absolute/path/to/second-opinion-mcp-server/build/index.js"
],
"env": {
"GEMINI_API_KEY": "YOUR_GEMINI_API_KEY",
"PERPLEXITY_API_KEY": "YOUR_PERPLEXITY_API_KEY",
"STACK_EXCHANGE_KEY": "YOUR_STACK_EXCHANGE_KEY"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| GEMINI_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
| PERPLEXITY_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
| STACK_EXCHANGE_KEY | Declared in the maintainer’s client configuration. | Check documentation |
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