# TradeSonar Extreme Funding Scanner

> TradeSonar Extreme Funding Scanner is a paid API for AI agents from api.tradesonar.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Returns a ranked list of crypto perpetual markets with extreme annualized funding rates, flagging crowding or carry opportunities across the market

## Facts

- Endpoint: GET https://api.tradesonar.io/v1/funding/extreme?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tradesonar-extreme-funding-scanner-4e9e33a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c6Kv9PnPkPUD-zh57nbHs

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 tradesonar-extreme-funding-scanner-4e9e33a5
```

Example prompt: Show me all crypto perpetual markets right now where the annualized funding rate is above 200%, including which side is crowded and how much open interest each has — give me the top 20.

## When to prefer this

Use this endpoint when you need a market-wide sweep for extreme funding conditions rather than analysis of a single market. It is the right choice for scanning for carry trade setups, identifying crowded positioning across the entire derivatives landscape, or building alerts for abnormal funding regimes. Prefer the single-market funding endpoint when you need deeper term structure or regime analysis for one specific ticker.

## Known failure modes

- Invalid threshold_ann value (non-numeric or out of reasonable range) returns 400 error
- Limit exceeds maximum of 200 returns validation error
- No markets meet the threshold returns empty markets array
- Payment not included or insufficient returns 402 Payment Required
- Stale data if market data feed is delayed
- Side filter value not in accepted enum returns 400

## How this service works

Market-wide extreme funding (crowding / carry opportunities)

## Output

A JSON array of perpetual markets exceeding the specified annualized funding threshold, each record containing the ticker symbol, current/1-day/7-day annualized funding rates, the dominant crowd side (long or short), and open interest in USD — enabling identification of carry opportunities and crowded positioning.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "side": {
       "type": "string",
       "default": "all"
      },
      "limit": {
       "type": "integer",
       "default": 50,
       "maximum": 200,
       "minimum": 1
      },
      "threshold_ann": {
       "type": "number",
       "default": 150,
       "description": "Annualized |%| threshold"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "markets": [
    {
     "d1Ann": "...",
     "d7Ann": "...",
     "nowAnn": "...",
     "ticker": "...",
     "crowdSide": "...",
     "openInterestUsd": "..."
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tradesonar-extreme-funding-scanner-4e9e33a5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tradesonar.io](https://www.zero.xyz/host/api.tradesonar.io/llms.txt)