# M2MCent Healthcare Voice Synthesis Indexer MCP

> M2MCent Healthcare Voice Synthesis Indexer MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.627953/call, status unknown (last checked 2026-10-12).

Executes a healthcare voice synthesis indexing operation via a monetized MCP node, returning a result URL for the processed dataset.

## Facts

- Endpoint: POST https://api.m2mcent.com/healthcare-voice-synthesis-indexer-mcp-899/api/execute?utm_source=zero.xyz
- Price: $0.627953/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/m2mcent-healthcare-voice-synthesis-indexer-mcp-46d9e8f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XDn7IVOScg0te9ZJibzpu

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-healthcare-voice-synthesis-indexer-mcp-46d9e8f6 -d '<json body>'
```

Example prompt: Index this healthcare voice dataset for me — the dataset ID is 'hc-audio-dataset-2024-q1' — and give me back the URL where I can access the synthesized result.

## When to prefer this

Choose this endpoint when you need to index or synthesize voice data specifically within the healthcare domain via a pay-per-call MCP node using USDC micropayments on Base L2. Prefer this over generic TTS APIs when integrating into an x402-compatible agent workflow that requires gasless crypto settlement.

## Known failure modes

- Missing or invalid 'dataset' field returns a 400 validation error
- Payment failure via x402 protocol results in 402 Payment Required
- Dataset not found or inaccessible returns a 404 or empty result
- Schema mismatch — response 'url' field typed as boolean may cause downstream parsing errors
- Service unavailability on the MCP node returns 503

## 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 'url' field (typed as boolean in the schema, likely a URL string in practice) pointing to the processed or synthesized healthcare voice output.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "dataset"
 ],
 "properties": {
  "dataset": {
   "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/m2mcent-healthcare-voice-synthesis-indexer-mcp-46d9e8f6/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)