Funding Rate Arbitrage Scanner API
Cross-venue perp funding rate arb — Hyperliquid, Binance, Bybit, OKX spreads. x402.
Open source Repository Open in the app JSON README (API)
About
Cross-venue perp funding rate arb — Hyperliquid, Binance, Bybit, OKX spreads. x402.
Details
- Kind
- MCP servers
- Topic
- Finance & crypto
- Publisher
- br0ski777
- Origin
- official
- Category
- ferramentas
- Transport
- sse
- Version
- 1.1.0
- Last push
- 2026-09-02T19:56:00Z
- Repository state
- ativo
- Language
- TypeScript
- License
- MIT
- Added
- 2026-08-29 03:01:43
- Updated
- 2026-08-29 03:01:43
- Origin id
io.github.Br0ski777/funding-arb
README
# Funding Rate Arbitrage Scanner API
[](https://funding-arb.api.klymax402.com/mcp)
[](https://x402.org)
[](LICENSE)
Funding rate arbitrage scanner -- Hyperliquid, Binance, Bybit, OKX cross-venue spreads and annualized yields. Pay-per-call via [x402](https://x402.org) (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the [klymax402](https://klymax402.com) marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
## Quickstart -- MCP
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
```json
{
"mcpServers": {
"funding-arb": {
"url": "https://funding-arb.api.klymax402.com/mcp"
}
}
}
```
## Quickstart -- HTTP (x402)
```bash
curl "https://funding-arb.api.klymax402.com/api/scan"
# -> 402 Payment Required, with an x402 payment challenge in the response body
```
Any x402-aware client ([`@x402/fetch`](https://www.npmjs.com/package/@x402/fetch), [`x402-agent-tools`](https://www.npmjs.com/package/x402-agent-tools), ATXP) handles the 402 -> sign -> retry cycle automatically.
## Tools
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
| `perp_scan_funding_arbitrage` | GET | `/api/scan` | $0.002 | Scan funding rate arbitrage opportunities across perpetual exchanges |
### `perp_scan_funding_arbitrage`
Use this when you need to find funding rate arbitrage opportunities across perpetual exchanges. Returns cross-venue spreads in JSON.
**Parameters**
| Name | Type | Required | Description |
|---|---|---|---|
| `symbol` | string | no | Filter by asset symbol (e.g. BTC, ETH, SOL). Optional — scans all assets if omitted. |
**Returns**
- `opportunities` -- array of arb opportunities ranked by annualized yield
- `symbol` -- asset symbol (BTC, ETH, SOL, etc.)
- `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
Example response:
```json
{"opportunities":[{"symbol":"ETH","longExchange":"Bybit","shortExchange":"OKX","spread":0.0045,"annualizedYield":16.4,"direction":"long Bybit / short OKX"}],"scannedAssets":25,"timestamp":"2026-04-13T12:00:00Z"}
```
**When to use**: systematic funding rate arbitrage and delta-neutral carry strategies. Scans all major perpetual venues simultaneously.
**Not for**: spot prices (use `dex_get_swap_quote`), DeFi yields (use `defi_find_best_yields`).
## Example agent prompts
- "Find funding rate arbitrage opportunities across perpetual exchanges"
## Payment
- Protocol: [x402](https://x402.org) -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (`eip155:8453`)
- Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via [ATXP](https://atxp.ai) (OAuth-wrapped x402, RFC 9728 protected-resource metadata)
## Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
## License
MIT