Valyu MCP Js MCP Server

MCP server implementation for Valyu API

Local serverstdio

What is the Valyu MCP Js MCP server?

Most developer tooling work still happens through a UI a human drives. Valyu MCP Js MCP server moves it into the conversation instead. MCP server implementation for Valyu API.

The short version

A Model Context Protocol server that provides access to Valyu's knowledge retrieval and feedback APIs. This server enables LLMs to search proprietary and web sources for information and submit feedback on transactions.

The tools it exposes

The server publishes 2 tools. What each one is for:

  • knowledge — Search proprietary and/or web sources for information
  • feedback — Submit user feedback for a transaction

What it needs from you

Configuration is passed through the environment: VALYU_API_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Getting it running

The server ships on npm as @modelcontextprotocol/inspector, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

How it compares

This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Valyu MCP Js's toolset — knowledge, feedback — is a fair guide to whether it matches your workflow. It is maintained by valyu-network; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Things to watch

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
knowledgeSearch proprietary and/or web sources for information
feedbackSubmit user feedback for a transaction

How to install the Valyu MCP Js MCP server

{
  "mcpServers": {
    "valyu-mcp-js": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/inspector"],
      "env": {
        "VALYU_API_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
VALYU_API_KEYCredential the server authenticates with.Yes

Example prompts to try

  • Use Valyu MCP Js to knowledge.
  • Use Valyu MCP Js to feedback.

Frequently asked questions

It connects Valyu MCP Js to MCP-compatible AI assistants such as Claude and Cursor, exposing 2 tools (knowledge, feedback) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Valyu MCP Js directly.