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Evr

MCP server · by BrienBounded

Developer Tools
Python
v0.1.2

Checks agent traces for evidence-readiness: verifies evidence is present, not that it is true.

View source ↗More servers

Install

Run one of the commands below, then add the client config underneath.

Python
uvx evidence-readiness

Client configuration

Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.

mcpServers
{
  "mcpServers": {
    "evr": {
      "command": "uvx",
      "args": [
        "evidence-readiness"
      ]
    }
  }
}

About this server

Evr is listed in the Developer Tools category of the MCPNav directory. It is distributed as Python and can be loaded by any client that speaks the Model Context Protocol.

Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.

Frequently asked questions

What is the Evr MCP server?＋

Evr is an MCP server by BrienBounded. Checks agent traces for evidence-readiness: verifies evidence is present, not that it is true.

How do I install Evr?＋

Install it with: uvx evidence-readiness. Then add the JSON config to your client's MCP settings and restart the client.

Is Evr free to use?＋

The MCP server itself is free to install. The source is public on https://github.com/evidence-readiness/spec. Any third-party API it calls (such as a search or maps API) may require its own key and billing.

Which clients support Evr?＋

Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.