Tersign Evidence MCP Server

What the code does

We read the source, 5 d ago · rules 995398eba69f

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  const child = spawn(opts.command, [...opts.args], { stdio: ['pipe', 'pipe', opts.stderr] });

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add evidence -- npx -y tersign

{
  "mcpServers": {
    "evidence": {
      "command": "npx",
      "args": [
        "-y",
        "tersign"
      ]
    }
  }
}

[mcp_servers.evidence]
command = "npx"
args = ["-y", "tersign"]

{
  "mcpServers": {
    "evidence": {
      "command": "npx",
      "args": [
        "-y",
        "tersign"
      ]
    }
  }
}

{
  "servers": {
    "evidence": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "tersign"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: TERSIGN_SELLER_KEY (Optional: your own 0x-prefixed signing key. Unset or empty, the server uses the key in the macOS keychain (tersign-signer) or ~/.tersign/signer.key, and generates one there on first run. The key never leaves your machine. If your ledger account has a registered signing key, set that key here: the ledger rejects respondent dispute evidence signed by any other key), TERSIGN_ISSUER_NAME (Seller/issuer display name), TERSIGN_ISSUER_JURISDICTION (Seller jurisdiction (e.g. HK)), TERSIGN_ISSUER_TAX_ID (Seller tax/business-registration id (optional)), TERSIGN_LEDGER_URL (Ledger base URL (optional). Needed by the dispute tools, and with the API key and seller id by record_refund and chained issue_receipt; record_disclosure defaults to https://tersign.ai), TERSIGN_LEDGER_API_KEY (Ledger seller API key (optional). With TERSIGN_LEDGER_URL and TERSIGN_LEDGER_SELLER_ID it enables record_refund and chained issue_receipt; with TERSIGN_LEDGER_URL it authenticates respondent dispute evidence. record_disclosure needs no API key), TERSIGN_LEDGER_SELLER_ID (Ledger seller id (optional). With TERSIGN_LEDGER_URL and TERSIGN_LEDGER_API_KEY it enables record_refund and chained issue_receipt).