Cross-venue perp DEX snapshot for one symbol: mark price, index price, premium (mark − index, also in bps) and funding on Hyperliquid, Lighter, Variational, Aster, Paradex and dYdX in one call — one row per venue. Funding is normalized to 1h, 8h and APR so venues compare directly (Hyperliquid and dYdX quote hourly; Variational and Paradex 8h; Aster varies per symbol; Lighter quotes 8h but settles hourly), with each venue's native rate, interval, settlement cadence and next funding time kept. Venues that do not publish a value are flagged, never filled: Variational has no index price, and dYdX marks to its oracle. meta.carry names the best short/long venue pair, the 8h and APR funding spread, and the entry basis gap between the legs. Built for delta-neutral and funding-arbitrage agents. Pass symbol (BTC, ETH, SOL; -PERP/USDT suffixes are stripped); optionally venues (comma list).
/api/crypto/perp-fundingPAYMENT-SIGNATURE.The perp funding API is a pay-per-call crypto endpoint built for AI agents and autonomous software. Cross-venue perp DEX snapshot for one symbol: mark price, index price, premium (mark − index, also in bps) and funding on Hyperliquid, Lighter, Variational, Aster, Paradex and dYdX in one call — one row per venue.
There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in perp funding data source for an agent tool-use loop, an MCP host, or a backend that needs crypto data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
symbolrequired | string | Base asset, e.g. BTC, ETH, SOL. BTC-PERP, BTCUSDT and BTC-USD are accepted. min 1 chars · max 30 chars |
venues | string | Comma-separated subset of: hyperliquid, lighter, variational, aster, paradex, dydx. Default: all. max 200 chars |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/crypto/perp-funding?symbol=example&venues=example' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/crypto/perp-funding?symbol=example&venues=example' \ -H 'PAYMENT-SIGNATURE: <base64-json-payload>' # Or use the canonical runner (handles probe → sign → retry): # EVM_PRIVATE_KEY=0x... node --env-file=.env.local \ # --experimental-strip-types scripts/x402-pay.ts \ # 'https://2s.io/api/crypto/perp-funding?symbol=example&venues=example'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.crypto.perpFunding({
"symbol": "example",
"venues": "example"
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.crypto.perp_funding(symbol="example", venues="example")
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
// EVM_PRIVATE_KEY funds x402 payments per call.
// claude_desktop_config.json
{
"mcpServers": {
"2sio": {
"command": "npx",
"args": ["-y", "@2sio/mcp"],
"env": { "EVM_PRIVATE_KEY": "0x..." }
}
}
}
// 2. Once the server is running, agents call this tool via standard MCP:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "crypto.perp-funding",
"arguments": {
"symbol": "example",
"venues": "example"
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object | |
meta | object |
{
"ok": true,
"items": [
{
"venue": "hyperliquid",
"listed": false,
"market": "example",
"markPrice": 1,
"indexPrice": 1,
"markAvailable": false,
"indexAvailable": false,
"premium": 1,
"premiumBps": 1,
"fundingRate": 1,
"fundingIntervalHours": 1,
"settlementIntervalHours": 1,
"funding1h": 1,
"funding8h": 1,
"fundingAprPct": 1,
"nextFundingTime": "example",
"asOf": "example",
"note": "example",
"error": "example"
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"meta": {
"symbol": "example",
"fundingBasis": "8h",
"carry": {
"shortVenue": "hyperliquid",
"longVenue": "hyperliquid",
"spread8h": 1,
"spreadAprPct": 1,
"entryBasisBps": 1
},
"venuesListed": 1,
"venuesFailed": 1
}
}