# Data Diode Unidirectional MCP

> Data Diode Unidirectional MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.4/call, status unknown (last checked 2026-10-14).

Processes data through a unidirectional (data-diode) pipeline, ensuring one-way data flow for security-isolated or air-gapped-style agentic workflows.

## Facts

- Endpoint: POST https://api.m2mcent.com/data-diode-unidirectional-mcp/api/process?utm_source=zero.xyz
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/data-diode-unidirectional-mcp-1934e7e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Vyk3OB02-5THq9mlU8mKb

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 data-diode-unidirectional-mcp-1934e7e3 -d '<json body>'
```

Example prompt: Send this data payload through the unidirectional data-diode processor to enforce strict one-way flow — I need it isolated so nothing comes back through the channel.

## When to prefer this

Choose this endpoint when you need to enforce strict unidirectional data flow between systems or agents, mimicking a hardware data diode in software — particularly useful in security-sensitive pipelines, OT/IT boundary transfers, compliance-regulated log forwarding, or any scenario where a reverse channel must be provably absent.

## Known failure modes

- Malformed or missing 'data' field returns a 400-level error
- Payload too large may be rejected
- Payment failure (x402) blocks processing
- Timeout if downstream unidirectional pipeline is congested
- Ambiguous or binary data in the string field may cause processing 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 the result of processing the submitted data string after it has been passed through the unidirectional data-diode pipeline; the response contains whatever the one-way processing layer produces, with no reverse channel or callback.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/data-diode-unidirectional-mcp-1934e7e3/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)