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onyx_x402_chain_picker

Inactive

Tool of onyx-paid-mcp

declared in 1.28.0

Pick the optimal chain for an x402 USDC payment. Given target amount + agent's available chains, ranks by facilitator support, live gas, finality time, and USDC contract maturity. Returns ranked list with explanations. Free tier — agents shouldn't hardcode 'base' when their wallet has L2 options. (price: $0 USDC, tier: free)

Parameters schema

{
  "type": "object",
  "required": [
    "amount_usdc"
  ],
  "properties": {
    "amount_usdc": {
      "type": "number",
      "description": "Target USDC amount the agent wants to settle."
    },
    "production_only": {
      "type": "boolean",
      "default": true,
      "description": "If true, exclude testnets from ranking."
    },
    "available_chains": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Chains the agent's wallet supports. Subset of: base, base-sepolia, optimism, arbitrum, polygon. Default = ['base', 'base-sepolia']."
    }
  }
}

What this tool wraps· 1 endpoint

min confidence0.70 0.50

Packagepypi: x402
declared dependency0.85

Parent server

onyx-paid-mcp

https://github.com/dimitrilaouanis-tech/onyx-mcp

2/7 registries

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