# Front-Running Simulator MCP

> Front-Running Simulator MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.35/call, status unknown (last checked 2026-09-15).

Simulates front-running attacks on transactions or order flows to analyze vulnerability, strategy, and financial impact

## Facts

- Endpoint: POST https://api.m2mcent.com/front-running-simulator-mcp/api/process
- Price: $0.35/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/front-running-simulator-mcp-afab8a5f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QtAZGwUaRngUnUmGl5zf3

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 front-running-simulator-mcp-afab8a5f -d '<json body>'
```

Example prompt: Can you simulate a front-running attack on this transaction data and tell me how vulnerable it is and what the estimated profit for an attacker would be?

## When to prefer this

Use this endpoint when you need to simulate or model front-running and MEV (Miner/Maximal Extractable Value) attack scenarios on specific transaction or order-flow data — especially for DeFi security audits, pre-trade risk checks, or smart contract vulnerability assessments. Prefer this over generic blockchain analytics tools when the specific goal is adversarial simulation of order-priority exploitation.

## Known failure modes

- Invalid or malformed transaction data returns an error or empty result
- Unsupported transaction format may yield incomplete simulation
- Ambiguous input data may produce low-confidence or partial results
- Network timeout if the simulation computation is intensive
- Missing required fields in the data payload returns a validation error

## How this service works

The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.

## Output

Returns a simulation result describing front-running attack scenarios, estimated attacker profit or loss, vulnerability assessment of the input transaction or order flow, and potentially suggested mitigations or risk scores.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "payload": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/front-running-simulator-mcp-afab8a5f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.m2mcent.com](https://www.zero.xyz/host/api.m2mcent.com/llms.txt)