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mcp/harbor
Grok

Probarion for Grok

io.github.probarion/probarion

Let an AI agent pay in USDC on NEAR only inside owner-signed mandates, with a signed ledger.

client:Grok transport:stdio runtime:npm

Install Probarion 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": {
    "probarion": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@probarion/mcp"
      ],
      "env": {
        "PROBARION_VAULT_ID": "<PROBARION_VAULT_ID>",
        "NEAR_NETWORK": "<NEAR_NETWORK>",
        "PROBARION_KEYS_FILE": "<PROBARION_KEYS_FILE>",
        "PROBARION_AGENT_KEY": "<PROBARION_AGENT_KEY>",
        "PROBARION_LEDGER_KEY": "<PROBARION_LEDGER_KEY>",
        "NEAR_RPC_URLS": "<NEAR_RPC_URLS>",
        "NEAR_ARCHIVAL_RPC_URLS": "<NEAR_ARCHIVAL_RPC_URLS>",
        "PROBARION_LEDGER_PATH": "<PROBARION_LEDGER_PATH>"
      }
    }
  }
}

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

Probarion in other clients

Probarion MCP server