Koskamo

Arbiter MCP

Provides a judgment layer for autonomous agents to evaluate transaction safety, counterparty identity, and asset authenticity. It decodes transactions and returns allow, warn, or block verdicts, with payments handled via x402 protocol in USDC.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Arbiter MCP logo, by godwin105Community listingLocal stdioSource reviewed; not executedPublished by godwin105
You need:PAY_TO must be a real Algorand address opted in to the USDC ASA for the network you are running
Vendor documentation

What you can do with it

  • Evaluate if a transaction is safe to sign
  • Verify counterparty identity
  • Validate asset authenticity

Source and maintenance

Community listingRegistry 0.1.1MIT
mcp-registry: io.github.godwin105/arbiter@0.1.1Source repositoryProject website
Last repository push
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@arbiterlabs/mcp 0.1.1

npm
@arbiterlabs/mcp package definition
{
  "version": "0.1.1",
  "transport": "stdio",
  "identifier": "@arbiterlabs/mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "ARBITER_URL",
      "format": "string",
      "default": "https://arbiter-hs23.onrender.com",
      "description": "Arbiter deployment to call. Defaults to the hosted service."
    },
    {
      "name": "ARBITER_PRIVATE_KEY",
      "format": "string",
      "isRequired": true,
      "description": "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."
    },
    {
      "name": "ARBITER_MAX_SPEND_USD",
      "format": "number",
      "default": "25",
      "description": "Lifetime spending cap for this process, in USD. Enforced before anything is signed."
    },
    {
      "name": "ARBITER_MAX_PRICE_PER_CALL",
      "format": "number",
      "default": "1",
      "description": "Refuse any single call priced above this, in USD."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "arbiter-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@arbiterlabs/mcp@0.1.1"
      ],
      "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>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "arbiter-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@arbiterlabs/mcp@0.1.1"
      ],
      "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>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "arbiter-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@arbiterlabs/mcp@0.1.1"
      ],
      "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>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "arbiter-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@arbiterlabs/mcp@0.1.1"
      ],
      "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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