Gemini CLI

Countersign by Signalry for Gemini CLI

ai.signalry/countersign

Verifiable agent claims. First step: request_key {public:true}, then submit_claim on a URL you run.

client:Gemini CLI transport:streamable-http tools:19

Install Countersign by Signalry in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "countersign": {
      "httpUrl": "https://countersign.signalry.ai/mcp?ref=mcp-registry"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

What Gemini CLI can do once it is connected

Countersign by Signalry in other clients

Countersign by Signalry MCP server