byte-mcp-server

Remote (streamable-http)

https://mcp.payperbyte.io/mcp Reachable (checked 2026-09-24)

Claude Code:

claude mcp add --transport http byte-mcp-server https://mcp.payperbyte.io/mcp

Or add to your MCP client config:

{
  "mcpServers": {
    "byte-mcp-server": {
      "url": "https://mcp.payperbyte.io/mcp"
    }
  }
}

Package (npm 0.13.0)

npx -y byte-mcp-server@0.13.0

Or add to your MCP client config:

{
  "mcpServers": {
    "byte-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "byte-mcp-server@0.13.0"
      ],
      "env": {
        "PRIVATE_KEY": "<YOUR_VALUE>",
        "RPC_URL": "<YOUR_VALUE>",
        "BYTE_GATEWAY_ATTESTER": "<YOUR_VALUE>"
      }
    }
  }
}

• PRIVATE_KEY secret — Ethereum private key for write/buy tools (subscribe, unsubscribe, publish, buy_data). buy_data spends real Base-mainnet USDC — use a dedicated wallet. Not required for read-only tools.
• RPC_URL — RPC for the on-chain library + EIP-712 attestation layer (Arbitrum Sepolia, eip155:421614). The x402 buy rail settles USDC on Base mainnet and needs no RPC here. Defaults to Arbitrum Sepolia public RPC.
• BYTE_GATEWAY_ATTESTER — Gateway attester address byte_buy_data pins receipts against. Defaults to the current PayPerByte gateway attester (rotated 2026-08-19; previous default 0x77c86a...C472 is retired). Override only if the gateway discloses a rotation you need ahead of a package update - see /.well-known/agent.json receipt.attester and receipt.retiredAttesters.