# TrollBridge Perp Funding Rates > TrollBridge Perp Funding Rates is a paid API for AI agents from mini-tollbooth.onrender.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11). Returns Hyperliquid perpetual funding rates for a given coin, including mark price, oracle price, estimated APR, and the most crowded long/short positions across all listed perps. ## Facts - Endpoint: GET https://mini-tollbooth.onrender.com/funding-rates?utm_source=zero.xyz - Price: $0.05/call - Payment: x402 - Status: unknown - Last checked: 2026-10-11 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/trollbridge-perp-funding-rates-7e69570b - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1Qr5jr1tDBCwDLQdqU2eQ Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability trollbridge-perp-funding-rates-7e69570b ``` Example prompt: What's the current Hyperliquid perp funding rate for ETH — is the market crowded long or short, and what's the estimated APR? ## When to prefer this Use this endpoint when you need real-time Hyperliquid perpetual funding rates with directional crowding context and APR estimates. Prefer this over generic crypto data APIs when you specifically need Hyperliquid perp funding rather than CEX funding rates (Binance/CEX funding is explicitly excluded due to geo-restrictions). Ideal for pre-trade checks, carry cost estimation, and identifying crowded positions. ## Known failure modes - Missing or invalid symbol parameter returns an error - Symbol not listed on Hyperliquid returns no data or an error - Hyperliquid API downtime may cause upstream failures - USDT suffix not stripped from symbol may cause lookup failure - Payment of $0.05 USDC not provided results in 402 response ## How this service works The insurance booth for AI agents, with Mini's Agent Supply Store on the side of the road. One hundred checkpoints: pre-transaction safety lanes (honeypot, approval-risk, rug-score, receipt-check, tx-dryrun, permit-scan, airdrop-verdict, deployer-history, wallet-watch, secret-scan at $0.02 USDC per call; the protection tier — /contract-check, /approval-screen, /tx-plain-english, /honeypot-check, /tx-simulate, /redteam, /skill-scan, /verdict, /egress-audit, /tool-gate, /airlock, /repo-scan, /prove, /task-scope — at $0.10; the one-call /shield don't-get-rugged screen at $0.25; the full /preflight bundle at $0.05), bounty intel (bounties, fresh, verdicts, deadlines, sweepstakes, opportunities) at $0.02 USDC per call, trader intel (/prices and /quant at $0.02; /enrich and /token-check at $0.05; /contract-check and /honeypot-check at $0.10; /sec-facts at $0.05), market intel (/markets and /search at $0.05; /grants at $0.02), DeFi intel (/yields and /new-pairs at $0.05; /gas and /defi at $0.02), AI intel (/models at $0.02), agent-ops intel (/prompt-cost, /model-picks, /rpc-speed, /terms-tldr, /scrape, /gigs, /retry-verify, /idempotency, /verify-independent at $0.02; /site-watch, /wallet-check, /code-run, /regulatory-pack, /sage, /cron-watch, /caveat-check, /tripwire, /escrow, /trust, /bridge-fees, /dao-votes, /dev-activity, /dex-arb, /dydx-perps, /funding-rates, /gas-predict, /hack-tracker, /long-short-ratio, /lp-yields, /mev-scan, /open-interest, /perp-basis, /polymarket-odds, /rwa-watch, /sentiment, /stablecoin-flows, /tokenomics, /top-movers, /whale-watch, and /yield-stable at $0.05; /approval-screen, /tx-plain-english, /tx-simulate, and /task-scope at $0.10; /scam-scan deep scan at $5.00 or 30-day subscription at $30.00), supply store (/road-pack combo meal at $0.05; curated datasets, the /audit-prep pre-audit review, and the /prove-state symbolic-execution run at $1.00; the /audit AI-agent audit at $25.00). Every lane answers before money moves — heuristic verdicts, not audits. Don't get rugged. ## Output Returns a JSON object with the coin ticker, venue (Hyperliquid), mark price, oracle price, funding rate per 8-hour period, estimated annualized APR, a plain-English interpretation of directional crowding (e.g. 'near neutral'), and a list of the most extreme funding rate coins across all perps with their APRs and per-8h rates. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "type": "object", "required": [], "properties": { "limit": { "type": "integer", "maximum": 200, "minimum": 1, "description": "Max items to return. Omit for the full feed." } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object" } } } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "coin": "ETH", "lane": "/funding-rates", "note": "Funding quoted per 8h period on Hyperliquid perps. Binance/CEX funding not included (geo-restricted).", "venue": "hyperliquid", "mark_price": 2693.6, "description": "Perp funding rates ($0.05) — Hyperliquid funding per coin plus the most crowded longs/shorts across all listed perps", "est_apr_pct": 1.37, "oracle_price": 2694.09, "funding_per_8h": 0.0000125, "interpretation": "near neutral — no strong directional crowding", "most_extreme_funding": [ { "coin": "MINA", "est_apr_pct": -29.59, "funding_per_8h": -0.0002702456 }, { "coin": "SAND", "est_apr_pct": -15.64, "funding_per_8h": -0.0001428294 } ] } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trollbridge-perp-funding-rates-7e69570b/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from mini-tollbooth.onrender.com](https://www.zero.xyz/host/mini-tollbooth.onrender.com/llms.txt)