# CarryLens Perpetual Funding Pulse

> CarryLens Perpetual Funding Pulse is a paid API for AI agents from carry-lens-api.netlify.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns the top 3 cost-adjusted cross-venue perpetual funding carry spreads with net funding projections, break-even time, and liquidity tiers for BTC, ETH, and SOL.

## Facts

- Endpoint: GET https://carry-lens-api.netlify.app/v1/perps/pulse
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/carrylens-perpetual-funding-pulse-60389990
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Pn5sH1gh9IQgZ-CsszrVx

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 carrylens-perpetual-funding-pulse-60389990
```

Example prompt: Pull the top cross-venue perp carry spreads for a $25,000 notional position held for 48 hours with 8 bps all-in costs so I can see the projected net funding and break-even time for each opportunity.

## When to prefer this

Use this endpoint when a trading agent needs real-time, cost-adjusted ranking of cross-venue perpetual funding carry trades — specifically when the agent has a known notional size, holding period, and all-in fee estimate and wants to identify the top actionable spread opportunities with break-even analysis rather than raw funding rate data.

## Known failure modes

- notionalUsd outside 100–100,000,000 range returns validation error
- holdingHours outside 1–2160 returns validation error
- totalCostBps outside 0–2000 returns validation error
- malformed numeric string for any query param returns 400
- upstream funding rate data unavailable returns 503 or stale data warning
- payment of $0.003 USDC not settled returns 402 Payment Required

## How this service works

Live, cost-aware cross-venue perpetual-funding screens for trading agents. x402 payment; no API key or account.

## Output

A JSON object containing the caller's assumptions (notional, holding hours, cost bps) and an array of the top 3 cross-venue perpetual funding carry spread opportunities, each with the venue pair, gross funding dollars, projected net funding after supplied costs, break-even time in hours, liquidity tier classification, and BTC/ETH/SOL funding rate context.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "notionalUsd": {
       "type": "string",
       "pattern": "^(?:\\d+(?:\\.\\d*)?|\\.\\d+)$",
       "description": "Matched USD notional on each hedged leg (100 to 100000000)."
      },
      "holdingHours": {
       "type": "string",
       "pattern": "^(?:\\d+(?:\\.\\d*)?|\\.\\d+)$",
       "description": "Expected holding period in hours (1 to 2160)."
      },
      "totalCostBps": {
       "type": "string",
       "pattern": "^(?:\\d+(?:\\.\\d*)?|\\.\\d+)$",
       "description": "All-in entry and planned-exit fees plus slippage in bps (0 to 2000)."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "assumptions",
      "top_cross_venue_carry_spreads"
     ],
     "properties": {
      "assumptions": {
       "type": "object"
      },
      "top_cross_venue_carry_spreads": {
       "type": "array"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "caveat": "Funding can change; caller-supplied costs are not an execution quote.",
  "assumptions": {
   "notionalUsd": 10000,
   "holdingHours": 168,
   "totalCostBps": 20
  },
  "markets_screened": 200,
  "benchmark_markets": [
   {
    "coin": "BTC",
    "basis_bps": 2.1,
    "change_24h_pct": 1.2,
    "funding_annualized_pct": 8.4
   }
  ],
  "top_cross_venue_carry_spreads": [
   {
    "coin": "BTC",
    "longVenue": "HlPerp",
    "costScreen": "passes",
    "shortVenue": "BinPerp",
    "executionTier": "high",
    "projectedEconomics": {
     "breakEvenHours": 14.1,
     "grossFundingUsd": 237.81,
     "netAnnualizedPct": 113.57,
     "assumedTotalCostUsd": 20,
     "projectedNetYieldPct": 2.1781,
     "projectedNetFundingUsd": 217.81
    },
    "grossSpreadAnnualizedPct": 12.4
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carrylens-perpetual-funding-pulse-60389990/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from carry-lens-api.netlify.app](https://www.zero.xyz/host/carry-lens-api.netlify.app/llms.txt)