# Cross-Venue Bitcoin Open Interest Aggregate API

> Cross-Venue Bitcoin Open Interest Aggregate API is a paid API for AI agents from nonvisceral-eloisa-mousily.ngrok-free.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Aggregates BTC open interest across 8 major exchanges, providing per-venue 1h percent change, divergence detection, and an overall accumulation/distribution verdict every hour.

## Facts

- Endpoint: GET https://nonvisceral-eloisa-mousily.ngrok-free.dev/api/oi-aggregate
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nonvisceral-eloisa-mousily-ngrok-free-dev-72d09397
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L-zKVI-KOCkLIZOgpj9Nt

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 nonvisceral-eloisa-mousily-ngrok-free-dev-72d09397
```

Example prompt: Pull the latest cross-venue Bitcoin open interest aggregate — I want to know which exchanges are accumulating vs distributing right now, the overall verdict, and which venue has the biggest divergence from the rest.

## When to prefer this

Use this endpoint when you need cross-venue Bitcoin OI analysis that reveals institutional rotation patterns undetectable from single-exchange feeds. Prefer it over single-venue OI endpoints when detecting smart money divergence (one venue accumulating while others distribute) is the goal, or when building a comprehensive BTC derivatives market state picture alongside funding rate and liquidation data.

## Known failure modes

- One or more venues unreachable — reachable_venues count will be less than 8, aggregate may be incomplete
- Stale data if upstream exchange APIs are delayed — check updated_at timestamp
- All venues unreachable — API may return error or empty aggregate
- Rate limiting or payment failure — 402 response if x402 payment not processed correctly

## How this service works

Cross-venue BTC open interest aggregated across 8 exchanges (Binance/Bybit/OKX/Bitget/Coinbase/Hyperliquid/Kraken/MEXC). Per-venue 1h %change, divergence detection (which venue accumulates vs distributes), max-divergence lean, and verdict. Cross-venue rotation signal single-venue OI feeds cannot provide. Hourly.

## Output

Returns total BTC open interest summed across up to 8 venues, the aggregate 1h percent change, per-venue 1h OI percent changes, per-venue divergence in percentage points per hour vs the aggregate, the venue with the maximum absolute divergence and its directional lean (accumulating/distributing/neutral), count of reachable venues, and an overall cross-venue verdict (accumulating/distributing/neutral/diverging), plus a timestamp.

## 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": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "verdict": {
       "type": "string"
      },
      "updated_at": {
       "type": "string"
      },
      "per_exchange": {
       "type": "object"
      },
      "reachable_venues": {
       "type": "number"
      },
      "max_abs_divergence": {
       "type": "object"
      },
      "aggregate_total_btc": {
       "type": "number"
      },
      "aggregate_pct_change_1h": {
       "type": "number"
      },
      "per_venue_pct_change_1h": {
       "type": "object"
      },
      "per_venue_divergence_pp_per_hour": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nonvisceral-eloisa-mousily-ngrok-free-dev-72d09397/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nonvisceral-eloisa-mousily.ngrok-free.dev](https://www.zero.xyz/host/nonvisceral-eloisa-mousily.ngrok-free.dev/llms.txt)