This tool is no longer present in the server's latest manifest. Showing the last observed version (server version 1.28.0).
onyx_x402_chain_picker
InactiveTool 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']."
}
}
}Parent server
onyx-paid-mcp
https://github.com/dimitrilaouanis-tech/onyx-mcp
2/7 registries