# CryptoIZ Whale Accumulation Signal

> CryptoIZ Whale Accumulation Signal is a paid API for AI agents from mcp.cryptoiz.org, paid per call via x402, $0.03/call, status down (last checked 2026-09-15).

Fetches whale accumulation signals for a crypto asset, indicating large-holder buying behavior in the market.

## Facts

- Endpoint: POST https://mcp.cryptoiz.org/whale/accumulation
- Price: $0.03/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mcp-cryptoiz-org-140a53e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cHA54WLZ-AtdENSpQPv_s

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 mcp-cryptoiz-org-140a53e8 -d '<json body>'
```

Example prompt: Can you pull the CryptoIZ whale accumulation signal for Bitcoin right now — I want to know if large holders are actively buying BTC.

## When to prefer this

Use this endpoint when you need to determine whether large crypto holders (whales) are in an accumulation phase for a specific asset. Prefer this over generic price or volume endpoints when the question is specifically about large-wallet buying behavior. Best suited for trading signal pipelines, portfolio monitoring, or sentiment dashboards that track smart-money activity.

## Known failure modes

- Invalid or unsupported asset symbol returns an error
- Payment of $0.03 USDC not provided or rejected via x402 results in 402 Payment Required
- Rate limiting or quota exceeded returns 429
- Asset not covered by CryptoIZ data returns empty or null signal
- Network timeout or service unavailability returns 5xx

## How this service works

Fetches whale accumulation data for crypto markets.

## Output

Returns whale accumulation data for the requested crypto asset, including signals or scores indicating whether large holders (whales) are in an accumulation phase — useful for gauging buying pressure and market sentiment from large-wallet activity.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mcp-cryptoiz-org-140a53e8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp.cryptoiz.org](https://www.zero.xyz/host/mcp.cryptoiz.org/llms.txt)