# Web3 Yield Simulator MCP Node (M2MCent #820)

> Web3 Yield Simulator MCP Node (M2MCent #820) is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $1.349675/call, status unknown (last checked 2026-10-10).

Accepts a hash string and returns a boolean result, marketed as a web3 yield simulation endpoint within the M2MCent monetized MCP node network.

## Facts

- Endpoint: POST https://api.m2mcent.com/web3-yield-simulator-mcp-820/api/execute?utm_source=zero.xyz
- Price: $1.349675/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web3-yield-simulator-mcp-node-m2mcent-820-9906528c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hlX3f03AjiWOTjbVBctnX

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 web3-yield-simulator-mcp-node-m2mcent-820-9906528c -d '<json body>'
```

Example prompt: Check if this hash '0xabc123def456...' resolves to a valid yield simulation result using the web3 yield simulator.

## When to prefer this

Use this endpoint when you need a simple boolean validation or simulation result keyed on a hash value within a web3 or DeFi yield context, and you are operating within an x402 micropayment-enabled agent workflow on Base L2.

## Known failure modes

- Missing or malformed hash input returns a validation error
- Hash not found in simulation context may return false rather than an error
- Network or payment failure (x402 USDC settlement) causes request to be rejected
- Ambiguous hash format may cause unexpected false negatives
- Service downtime across the M2MCent node network may cause 503 errors

## 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 JSON object with a single boolean field indicating whether the submitted hash passes the yield simulation check (true or false).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "hash"
 ],
 "properties": {
  "hash": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "boolean"
 ],
 "properties": {
  "boolean": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/web3-yield-simulator-mcp-node-m2mcent-820-9906528c/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)