io.github.godwin105/arbiter MCP Server

io.github.godwin105/arbiter

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What is the io.github.godwin105/arbiter MCP server?

Is this transaction safe to sign? Decodes what it really does and answers allow, warn or block.

How to install io.github.godwin105/arbiter

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

ARBITER_URL
Arbiter deployment to call. Defaults to the hosted service.
ARBITER_PRIVATE_KEY
required
secret
Base64-encoded 64-byte Algorand private key used to pay for calls. The account needs USDC and must be opted in to the USDC asset. Without it every request stops at the paywall.
ARBITER_MAX_SPEND_USD
Lifetime spending cap for this process, in USD. Enforced before anything is signed.
ARBITER_MAX_PRICE_PER_CALL
Refuse any single call priced above this, in USD.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "arbiter": {
      "command": "npx",
      "args": [
        "-y",
        "@arbiterlabs/mcp"
      ],
      "env": {
        "ARBITER_URL": "<YOUR_ARBITER_URL>",
        "ARBITER_PRIVATE_KEY": "<YOUR_ARBITER_PRIVATE_KEY>",
        "ARBITER_MAX_SPEND_USD": "<YOUR_ARBITER_MAX_SPEND_USD>",
        "ARBITER_MAX_PRICE_PER_CALL": "<YOUR_ARBITER_MAX_PRICE_PER_CALL>"
      }
    }
  }
}

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