# EdTech Sentiment Indexer MCP

> EdTech Sentiment Indexer MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.241323/call, status unknown (last checked 2026-10-10).

Analyzes sentiment in educational audio content using an MCP node with gasless USDC micropayment settlement

## Facts

- Endpoint: POST https://api.m2mcent.com/edtech-sentiment-indexer-mcp-694/api/execute?utm_source=zero.xyz
- Price: $0.241323/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/edtech-sentiment-indexer-mcp-e794b442
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EgeRpKAge76rXOftwmkGo

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 edtech-sentiment-indexer-mcp-e794b442 -d '<json body>'
```

Example prompt: Analyze the sentiment in this edtech audio clip for me — here's the audio data: [base64 audio string]. Tell me whether the tone is positive, negative, or neutral.

## When to prefer this

Choose this endpoint when you need automated sentiment analysis on educational audio content and are operating within an x402 micropayment-enabled agent pipeline using Base L2 USDC. It is best suited for edtech platforms wanting per-call pay-as-you-go audio sentiment indexing without subscription overhead.

## Known failure modes

- Missing or malformed audio input returns a 400-level error
- Invalid base64 encoding of audio causes processing failure
- Insufficient USDC balance causes x402 payment failure and 402 response
- Audio format not supported may result in processing error
- Ambiguous or very short audio clips may produce unreliable sentiment output
- Network or node unavailability returns 5xx 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 with a 'url' boolean field indicating the sentiment result status; detailed sentiment classification likely embedded in response payload

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/edtech-sentiment-indexer-mcp-e794b442/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)