PerpRadar: perp funding rates, open interest and positioning for trading agents (x402 API + MCP)

Perpetual futures funding radar across the onchain perp venues Hyperliquid, dYdX v4, Paradex and Aevo. One call returns funding normalized to 8h % and APR, open interest, mark/index premium, the cross-venue median, spread, the cheapest venue to be long or short and a positioning read (crowded long / long bias / neutral / short bias / crowded short). The full tier adds 7-day funding history with z-score and percentile, the funding regime and carry; the scan finds funding extremes and the widest cross-venue spreads across the whole market.

Not financial advice. Past performance does not guarantee future results. Read-only market analytics from public venue data. PerpRadar never trades, never holds funds and never asks for keys.

• API: https://api.youraitools.co/perpradar (fallback https://perpradar.agentgate.workers.dev)
• Remote MCP: https://api.youraitools.co/perpradar/mcp (tool perp_positioning, free preview)
• stdio MCP: npx -y @agentgate-builder/perpradar (tools perp_funding, perp_funding_scan)
• OpenAPI: /openapi.json · x402 manifest: /.well-known/x402

Routes and prices

| Route | Price | Returns | |---|---|---| | GET /v1/lite?symbol=BTC | $0.005 | per-venue funding (8h %, APR) and OI, median and OI-weighted funding, spread, cheapest venue for longs/shorts, positioning | | GET /v1/full?symbol=ETH | $0.03 | lite + mark/index premium, 24h volume, Hyperliquid 7-day and dYdX 100-hour funding history (mean, min, max, z-score, percentile), regime, carry | | GET /v1/scan?universe=all or ?symbols=BTC,ETH,SOL | $0.02 | highest / lowest funding, widest cross-venue spreads, market-wide OI-weighted funding | | GET /v1/preview?symbol=BTC | free (10/min/IP) | positioning label, venues, confidence (no rates) |

All paid routes accept POST with the same fields as JSON. Payment: x402 v2 (PAYMENT-SIGNATURE; USDC on Base, Polygon, Arbitrum One or Solana) or v1 (X-PAYMENT, Base), or a prepaid YourAITools credits key (Authorization: Bearer yatc_...). Bad input (400), unknown symbols (404) and upstream failures (503) are never charged.

Fail-closed

A venue that errors or times out is listed in sources_failed and left out: never estimated. The cross-venue read needs at least 2 venues (otherwise positioning: "unknown", confidence low). No venue at all = HTTP 503 upstream_unavailable, not charged.

stdio MCP paid mode

Set PERPRADAR_X402_PRIVATE_KEY (a Base wallet with a little USDC) and install the optional peers: npx -y -p @agentgate-builder/perpradar -p @x402/fetch -p @x402/evm -p viem perpradar. Spend guard: Base USDC only, max $0.03 per payment, only to the PerpRadar payTo.

Develop

npm test (offline mocks) · npm start (Node server) · wrangler deploy (Cloudflare Worker).

MIT. Data: public market-data APIs of Hyperliquid, dYdX v4 indexer, Paradex and Aevo.