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mcp/harbor
Grok

Tersign Evidence for Grok

io.github.tersignhq/evidence

Counter-signed evidence records for agent commerce: receipts, verification, dispute envelopes.

client:Grok transport:stdio runtime:npm

Install Tersign Evidence in Grok

.mcp.json (in your project root)

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "evidence": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "tersign"
      ],
      "env": {
        "TERSIGN_SELLER_KEY": "<TERSIGN_SELLER_KEY>",
        "TERSIGN_ISSUER_NAME": "<TERSIGN_ISSUER_NAME>",
        "TERSIGN_ISSUER_JURISDICTION": "<TERSIGN_ISSUER_JURISDICTION>",
        "TERSIGN_ISSUER_TAX_ID": "<TERSIGN_ISSUER_TAX_ID>",
        "TERSIGN_LEDGER_URL": "<TERSIGN_LEDGER_URL>",
        "TERSIGN_LEDGER_API_KEY": "<TERSIGN_LEDGER_API_KEY>",
        "TERSIGN_LEDGER_SELLER_ID": "<TERSIGN_LEDGER_SELLER_ID>"
      }
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

Tersign Evidence in other clients

Tersign Evidence MCP server