# Coin Railz DEX Liquidity Pool Monitor

> Coin Railz DEX Liquidity Pool Monitor is a paid API for AI agents from coinrailz.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-13).

Monitors real-time liquidity pool data across multiple decentralized exchanges simultaneously

## Facts

- Endpoint: POST https://coinrailz.com/x402/dex-liquidity
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coin-railz-dex-liquidity-pool-monitor-e3780268
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fs_vgYAlDfqrMuAxPbVks

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 coin-railz-dex-liquidity-pool-monitor-e3780268 -d '<json body>'
```

Example prompt: Check the current liquidity pool depth for ETH/USDC across all major DEXes right now — I want to know which exchange has the deepest pool before I make a large swap.

## When to prefer this

Choose this endpoint when an AI trading agent needs real-time, multi-exchange DEX liquidity data in a single call before executing a swap or evaluating slippage risk. Best suited for DeFi trading bots, portfolio management agents, or arbitrage systems that need to compare liquidity depth across DEXes simultaneously rather than querying each exchange individually.

## Known failure modes

- Token pair not found on any monitored DEX — returns empty pool data
- Requested exchange not supported — service may return partial results
- Network congestion causing stale liquidity data — timestamp indicates freshness
- Invalid token address or pair format — may return error or null result
- Payment not processed — x402 payment required before data is returned

## How this service works

Real-time DEX liquidity pool monitoring across multiple exchanges

## Output

Returns a JSON object with real-time liquidity pool data including pool metrics, depth, and volume across multiple DEX exchanges, along with a success flag and timestamp.

## Example request

```json
{
 "chain": "ethereum",
 "topic": "ETH/USDC liquidity monitoring",
 "platforms": [
  "uniswap",
  "sushiswap",
  "curve"
 ],
 "tokenAddress": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Query parameter for the service"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "application/json",
 "format": "json",
 "example": {
  "result": "Service executed successfully",
  "service": "dex-liquidity",
  "success": true,
  "timestamp": "2026-02-07T01:38:35.193Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coin-railz-dex-liquidity-pool-monitor-e3780268/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coinrailz.com](https://www.zero.xyz/host/coinrailz.com/llms.txt)