# Smart Money Convergence FOMO Signal Detector

> Smart Money Convergence FOMO Signal Detector is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Detects tokens that multiple tracked smart-money wallets have all bought within a specified time window, surfacing convergence/FOMO signals with buyer lists and timestamps, across multiple chains.

## Facts

- Endpoint: GET https://api.x402node.dev/chain/smart-money-converge
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/smart-money-convergence-fomo-signal-detector-349c1165
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_emO89lsu9WVSJvQtSbuQH

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 smart-money-convergence-fomo-signal-detector-349c1165
```

Example prompt: Check which tokens at least 3 of these smart-money wallets — 0xABC1, 0xDEF2, 0xGHI3, 0xJKL4, 0xMNO5 — all bought together on Ethereum in the last 12 hours, and sort results by strongest convergence signal.

## When to prefer this

Use this endpoint when you need to detect coordinated or converging on-chain buying activity across a curated list of smart-money or whale wallets on a specific chain and time window. It is purpose-built for FOMO/convergence signal generation from a watched list, unlike generic token screeners or single-wallet trackers. Prefer this over general on-chain APIs when you already have a smart-money address list and want multi-wallet overlap analysis with minimal setup.

## Known failure modes

- No convergence signals found (empty signals array) if no tokens meet the minBuyers threshold in the window
- Invalid or unsupported chain identifier returns an error or empty result
- Malformed wallet addresses in the watched list may cause them to be excluded from query
- Very large watched address lists may increase latency or hit request limits
- Chain with limited data coverage may return incomplete or stale results
- Payment failure ($0.02 USDC) results in 402 response and no data returned

## How this service works

检测多个钱包在指定时间窗内共同买入(获取)同一代币的聪明钱共振 / FOMO 信号。传入你追踪的聪明钱地址列表,返回被其中至少 N 个地址在窗口内共同买入的代币,含买入地址与首次、最近买入时间。支持多链。Smart-money convergence FOMO signal: detect tokens acquired by multiple watched wallets within a time window. Pass your smart-money address list, get tokens bought by at least N of them with buyers and first or last buy time. Multi-chain on-chain aggregation. Accepts payment on Base or Solana — either network works.

## Output

Returns an array of converged token signals sorted strongest first, each containing the token address, symbol, name, number of buyers from the watched list, the list of buying wallet addresses, and the first and last buy timestamps within the window. Also returns metadata: the resolved chain, data source label, the addresses actually queried, the minimum-buyers threshold used, total signal count, and the lookback window in hours.

## 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",
     "required": [
      "addresses"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "eth, base, bsc, polygon, arbitrum, optimism or avalanche (default eth)."
      },
      "addresses": {
       "type": "string",
       "description": "Comma or space separated wallet addresses to watch, your smart-money list (required, up to 12)."
      },
      "minBuyers": {
       "type": "string",
       "description": "Minimum distinct watched wallets that must acquire a token for it to be flagged (default 2)."
      },
      "windowHours": {
       "type": "string",
       "description": "Lookback window in hours, 1-168 (default 24)."
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/smart-money-convergence-fomo-signal-detector-349c1165/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)