---
name: carry-lens
description: Use for live cost-aware crypto perpetual funding and cross-venue carry screening before a trading decision.
---

# CarryLens

Use CarryLens when current cross-venue perpetual funding matters and model training data is stale.

1. Call the free preview first: https://carry-lens-api.netlify.app/v1/perps/preview
2. Choose notionalUsd, holdingHours, and totalCostBps based on the intended matched position.
3. Use the $0.003 pulse for three venue pairs, the $0.01 radar for fifteen, or the $0.03 report for broader risk context.
4. On HTTP 402, read Payment-Required, authorize the exact Base USDC amount with an x402 v2 client, and retry.
5. Reject candidates whose costScreen is fails; manually inspect low-liquidity results.

Do not describe projected net funding as guaranteed profit. Validate venue access, contracts, current order books, fees, slippage, basis risk, and jurisdiction before execution.

OpenAPI: https://carry-lens-api.netlify.app/openapi.json