NullClear Arbiter MCP Server: Install & Setup

Install NullClear Arbiter in Claude Code

Claude Code

claude mcp add --transport http nullclear-arbiter https://api.nullclear.dev/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "nullclear-arbiter": {
      "url": "https://api.nullclear.dev/mcp"
    }
  }
}

Claude Code

claude mcp add nullclear-arbiter -- npx -y @nullclear/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "nullclear-arbiter": {
      "command": "npx",
      "args": [
        "-y",
        "@nullclear/mcp"
      ]
    }
  }
}

Autonomous x402 payment schema-escrow arbiter, spend firewall, failover & ERC-8004 Sybil oracle

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Local + Remote. Can run locally or be used as a hosted remote server.

Run: claude mcp add --transport http nullclear-arbiter https://api.nullclear.dev/mcp

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