# Web3 ZK Proof Validator MCP Node

> Web3 ZK Proof Validator MCP Node is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.344018/call, status unknown (last checked 2026-10-10).

Validates a dataset input and returns a boolean result, ostensibly as a monetized MCP node for zero-knowledge proof validation on a Web3 network.

## Facts

- Endpoint: POST https://api.m2mcent.com/web3-zk-proof-validator-mcp-781/api/execute?utm_source=zero.xyz
- Price: $0.344018/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web3-zk-proof-validator-mcp-node-5efae944
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HZhGQqAe2JiZ61paTHPFj

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-zk-proof-validator-mcp-node-5efae944 -d '<json body>'
```

Example prompt: Run the web3 ZK proof validator on this dataset string and tell me whether it passes or fails: '0xabc123deadbeef'.

## When to prefer this

Choose this endpoint when you need a simple true/false validation result for a dataset string within a Web3 or ZK-proof context and are already operating within the x402 USDC micropayment ecosystem on Base L2.

## Known failure modes

- Missing required 'dataset' field returns a validation error
- Malformed or non-string dataset input may cause a 400 error
- Payment failure via x402 protocol results in a 402 Payment Required response
- Service unavailability on the MCP node returns a 503 error
- Empty or null dataset may return false or an 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 JSON object containing a single boolean field indicating whether the provided dataset passes the ZK proof validation check (true = valid, false = invalid).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "dataset"
 ],
 "properties": {
  "dataset": {
   "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-zk-proof-validator-mcp-node-5efae944/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)