MCP Server MCP

io.github.krystiangw/agenticpay

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x402 USDC paywall bridge for MCP — pay per tool call on Solana.

Homepage Verified source GitHub

Install

npx -y @agenticpay/[email protected]

Configuration Example

{
  "remotes": [],
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@agenticpay/mcp-bridge",
      "version": "0.0.2",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Solana keypair as 64-byte JSON array (the format `solana-keygen new` writes). The bridge signs each x402 payment with this keypair.",
          "isRequired": true,
          "isSecret": true,
          "name": "AGENTICPAY_BRIDGE_KEYPAIR"
        },
        {
          "description": "JSON array of paid tool definitions. Each entry: { name, description, url, inputSchema, headers? }",
          "isRequired": true,
          "name": "AGENTICPAY_BRIDGE_TOOLS"
        },
        {
          "description": "CAIP-2 network identifier. Devnet: solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1",
          "default": "solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1",
          "name": "AGENTICPAY_BRIDGE_NETWORK"
        },
        {
          "description": "Solana JSON-RPC URL",
          "default": "https://api.devnet.solana.com",
          "name": "AGENTICPAY_BRIDGE_RPC"
        }
      ]
    }
  ]
}

mcp model-context-protocol npm