Arcagents MCP

Local install

io.github.Nomad07/arcagents-mcpv1.0.0 GitHub verified

Arc Agents MCP: ERC-8004 agent data from Arc Mainnet. $0.002 USDC per successful request via x402.

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Registry entry

Open in the registry

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-14T20:35:47.517232Z",
      "publishedAt": "2026-11-14T20:35:47.517232Z",
      "statusChangedAt": "2026-11-14T20:35:47.517232Z"
    }
  },
  "server": {
    "name": "io.github.Nomad07/arcagents-mcp",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "1.0.0",
    "packages": [
      {
        "version": "1.0.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "arcagents-mcp",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "EVM_PRIVATE_KEY",
            "isSecret": true,
            "isRequired": true,
            "description": "Private key of a dedicated wallet holding a small USDC balance on the payment network. Pays $0.002 per request via x402."
          },
          {
            "name": "ARCAGENTS_PAYMENT_NETWORK",
            "description": "Payment network: arc (default) or base. ERC-8004 data always comes from Arc Mainnet."
          },
          {
            "name": "ARCAGENTS_MAX_PAYMENTS",
            "description": "Maximum payments signed per session (integer 1-1000, default 50)."
          },
          {
            "name": "ARCAGENTS_TIMEOUT_MS",
            "description": "Total timeout for one tool call in milliseconds (1000-120000, default 30000)."
          },
          {
            "name": "ARCAGENTS_STATE_DIR",
            "description": "Absolute path of a private directory for signed but unresolved payments, so they are resent, never replaced, after a restart (default ~/.arcagents-mcp)."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/Nomad07/arcagents-mcp",
      "source": "github"
    },
    "description": "Arc Agents MCP: ERC-8004 agent data from Arc Mainnet. $0.002 USDC per successful request via x402."
  }
}

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Try it

This server only runs locally, from a package. Install it with the instructions on this page to try it.

Install

Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.

One click: Add to Cursor Add to VS Code Add to LM StudioThen replace the YOUR_ values and {placeholders} with your own.

Run in a terminal

claude mcp add arcagents-mcp \
  -e EVM_PRIVATE_KEY=YOUR_EVM_PRIVATE_KEY \
  -- npx -y [email protected]

Environment

EVM_PRIVATE_KEY (required): Private key of a dedicated wallet holding a small USDC balance on the payment network. Pays $0.002 per request via x402.
ARCAGENTS_PAYMENT_NETWORK (optional, not in the config above): Payment network: arc (default) or base. ERC-8004 data always comes from Arc Mainnet.
ARCAGENTS_MAX_PAYMENTS (optional, not in the config above): Maximum payments signed per session (integer 1-1000, default 50).
ARCAGENTS_TIMEOUT_MS (optional, not in the config above): Total timeout for one tool call in milliseconds (1000-120000, default 30000).
ARCAGENTS_STATE_DIR (optional, not in the config above): Absolute path of a private directory for signed but unresolved payments, so they are resent, never replaced, after a restart (default ~/.arcagents-mcp).

Tools

We don't run packages, so we can't list this server's tools.