# Xynaptic Crypto Whales

> Xynaptic Crypto Whales is a paid API for AI agents from api.xynaptic.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Returns live large Bitcoin transfers from the mempool and recent blocks, sorted by value in BTC and USD, to spot whale accumulation or distribution in real time.

## Facts

- Endpoint: GET https://api.xynaptic.io/v1/crypto-whales?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xynaptic-crypto-whales-589d3414
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_H9-Vn8ZRCFuaSFw1y4vMi

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 xynaptic-crypto-whales-589d3414
```

Example prompt: Show me the top 10 Bitcoin whale transactions happening right now — mempool and recent blocks — with at least 10 BTC per transfer, ranked by value in both BTC and USD.

## When to prefer this

Choose this endpoint when you need real-time, value-sorted Bitcoin whale transaction data from both the mempool and recent confirmed blocks in a single call. It is ideal for trading signal generation, market sentiment analysis, or on-chain monitoring without needing to run your own Bitcoin node or parse raw blockchain data. Prefer it over generic blockchain explorers when you specifically want pre-filtered large transactions ranked by USD value with minimal latency.

## Known failure modes

- Network or mempool node unavailability causing empty or stale results
- min_btc filter set too high returning zero results
- limit parameter out of acceptable range causing a 400 error
- Temporary payment/x402 authentication failure returning 402
- Rate limiting if called too frequently returning 429

## How this service works

Xynaptic Crypto Whales — live large Bitcoin transfers straight from the network: biggest mempool transactions and recent block flows, sorted by value (BTC + USD). Spot accumulation/distribution in real-time. GET ?min_btc=10 (&limit=10).

## Output

A ranked list of large Bitcoin transactions from the mempool and recent blocks, each entry including the transaction size in BTC, its equivalent USD value, and metadata sufficient to identify accumulation or distribution patterns, sorted descending by value.

## 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",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xynaptic-crypto-whales-589d3414/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.xynaptic.io](https://www.zero.xyz/host/api.xynaptic.io/llms.txt)