Obol MCP

Obol MCP enables AI agents to discover, trust, and pay for APIs and services in USDC on the Arc blockchain. It supports gasless nanopayments via Circle Gateway, allowing agents to find services, check balances, deposit funds, and execute payments automatically without human intervention or API keys.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by Obol

You need:Create an account and copy your API key from Settings on obol-arc.web.appKeep the API key secret (env var or secrets manager)Generate an EOA key, fund it at faucet.circle.com (Arc testnet)

Vendor documentation

What you can do with it

Discover services in the Obol marketplace
Deposit USDC into Circle Gateway balance
Pay for and call API services automatically
Check agent spending balance

Source and maintenance

Community listingRegistry 0.2.2

mcp-registry: io.github.superbigroach/obol@0.2.2 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

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

@superbigroach/obol-mcp 0.2.2

npmnpx

@superbigroach/obol-mcp package definition

{
  "version": "0.2.2",
  "transport": "stdio",
  "identifier": "@superbigroach/obol-mcp",
  "runtimeHint": "npx",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "OBOL_API_KEY",
      "isRequired": true,
      "description": "Your Obol API key (obl_sk_live_...) from obol-arc.web.app/settings — identifies your account for listing services and metered calls."
    },
    {
      "name": "OBOL_AGENT_KEY",
      "description": "32-byte hex Arc wallet private key that signs gasless x402/EIP-3009 payment authorizations. Needed only for paying (pay_and_call); discovery and listing work without it."
    }
  ]
}

Tools

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

No tool definitions available.

Connect from your client

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

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "obol-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@superbigroach/obol-mcp@0.2.2"
      ],
      "env": {
        "OBOL_API_KEY": "<YOUR_OBOL_API_KEY>",
        "OBOL_AGENT_KEY": "<YOUR_OBOL_AGENT_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "obol-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@superbigroach/obol-mcp@0.2.2"
      ],
      "env": {
        "OBOL_API_KEY": "<YOUR_OBOL_API_KEY>",
        "OBOL_AGENT_KEY": "<YOUR_OBOL_AGENT_KEY>"
      }
    }
  }
}

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": {
    "obol-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@superbigroach/obol-mcp@0.2.2"
      ],
      "env": {
        "OBOL_API_KEY": "<YOUR_OBOL_API_KEY>",
        "OBOL_AGENT_KEY": "<YOUR_OBOL_AGENT_KEY>"
      }
    }
  }
}

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": {
    "obol-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@superbigroach/obol-mcp@0.2.2"
      ],
      "env": {
        "OBOL_API_KEY": "<YOUR_OBOL_API_KEY>",
        "OBOL_AGENT_KEY": "<YOUR_OBOL_AGENT_KEY>"
      }
    }
  }
}

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