# M2MCent Web3 Sentiment Validator

> M2MCent Web3 Sentiment Validator is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.732398/call, status unknown (last checked 2026-10-14).

Validates and scores a text payload for web3 sentiment, returning a boolean sentiment score via a monetized MCP node on the x402 protocol.

## Facts

- Endpoint: POST https://api.m2mcent.com/web3-sentiment-validator-mcp-950/api/execute?utm_source=zero.xyz
- Price: $0.732398/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/m2mcent-web3-sentiment-validator-77b395dd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kX8iR8mlxfRQDtKM08CWi

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 m2mcent-web3-sentiment-validator-77b395dd -d '<json body>'
```

Example prompt: Can you validate the web3 sentiment of this text and tell me if it's positive: 'Ethereum layer 2 adoption is accelerating and gas fees are at an all-time low'?

## When to prefer this

Choose this endpoint when you need a fast, binary (true/false) sentiment validation specifically scoped to web3, crypto, or blockchain content and are operating in an x402-enabled USDC micropayment environment. Prefer it over general-purpose sentiment APIs when you need on-chain settlement and a lightweight boolean output rather than a scored or multi-class sentiment result.

## Known failure modes

- Missing required 'payload' field returns a validation error
- Empty string payload may return unpredictable boolean result
- Non-web3 or off-topic text may produce unreliable boolean scores
- Payment failure via x402 protocol (insufficient USDC balance) results in 402 response before execution
- Network or node availability issues on api.m2mcent.com may cause timeouts

## 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 'score' field of type boolean — true indicates positive/valid web3 sentiment, false indicates negative or invalid sentiment for the submitted payload.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/m2mcent-web3-sentiment-validator-77b395dd/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)