Funding rate arbitrage scanner -- Hyperliquid, Binance, Bybit, OKX cross-venue spreads and annualized yields. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Funding Arb X402 is an MCP project maintained in the br0ski777/funding-arb-x402 repository. The maintainer describes its purpose as “Funding rate arbitrage scanner -- Hyperliquid, Binance, Bybit, OKX cross-venue spreads and annualized yields. Pay-per-call via x402 (USDC on Base L2) -- no API key…”. Read the project documentation for the complete scope.
The maintainer’s configuration uses https://funding-arb.api.klymax402.com/mcp. Check the project’s account and authentication instructions when adding the endpoint to your client.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| opportunities | - array of arb opportunities ranked by annualized yield |
| symbol | string |
| longExchange | - exchange where you go long (lower funding) |
| shortExchange | - exchange where you go short (higher funding) |
| spread | - funding rate difference between venues |
| annualizedYield | - estimated annualized return from the arb |
| direction | - suggested position direction per exchange |
| perp_scan_funding_arbitrage |
{
"mcpServers": {
"funding-arb": {
"url": "https://funding-arb.api.klymax402.com/mcp"
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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