# AgentDiet Whale Momentum Signal Endpoint

> AgentDiet Whale Momentum Signal Endpoint is a paid API for AI agents from prompt-guard.agentdiet.dev, paid per call via x402 or MPP, $0.015/call, status unknown (last checked 2026-10-20).

Returns on-chain whale momentum intelligence for a given crypto token symbol, distilled into a structured signal payload.

## Facts

- Endpoint: GET https://prompt-guard.agentdiet.dev/v1/whale-momentum?utm_source=zero.xyz
- Price: $0.015/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-whale-momentum-signal-endpoint-be044713
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D4kZ4cjsYzH_sG2Oon04O

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 agentdiet-whale-momentum-signal-endpoint-be044713
```

Example prompt: Can you pull the whale momentum signal for ETH right now — I want to know if large holders are accumulating or distributing?

## When to prefer this

Choose this endpoint when you need a pre-distilled, agent-ready whale momentum signal for a specific crypto token without having to process raw on-chain data yourself. It is especially useful for autonomous agents that need low-latency, structured on-chain intelligence at a low per-call cost ($0.015 USDC) via native x402 micropayment, rather than maintaining their own blockchain data pipeline or subscribing to an expensive analytics platform.

## Known failure modes

- Missing or unrecognized token symbol returns empty or error data object
- Invalid HTTP method returns a schema validation error
- Insufficient USDC balance or failed x402 payment results in HTTP 402 payment required
- Rate limiting or upstream on-chain data unavailability may yield stale or empty data
- Malformed query parameters result in a 400-level error

## How this service works

15-App Autonomous Business-to-Agent (B2A) API Hub & MCP Suite. Supports Web Distillation, On-Chain Risk, DEX Token Intelligence, B2B Lead Enrichment, Domain OSINT, Email Verification, SEC Filings, GitHub Audits, Prompt Firewall, and native HTTP 402 (x402 Base USDC).

## Output

Returns a JSON object with a 'data' field containing on-chain whale momentum signals for the requested token, a 'status' field ('ok'), and an 'roi_proof' object including a compression_ratio_pct metric (e.g. 91.4%) indicating how much raw on-chain data was distilled into the response.

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "status": "ok",
  "roi_proof": {
   "compression_ratio_pct": 91.4
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdiet-whale-momentum-signal-endpoint-be044713/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prompt-guard.agentdiet.dev](https://www.zero.xyz/host/prompt-guard.agentdiet.dev/llms.txt)