# WASM Isolated Runner MCP

> WASM Isolated Runner MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-14).

Executes code or data processing in a WebAssembly-isolated sandboxed environment via a managed compute process endpoint.

## Facts

- Endpoint: POST https://api.m2mcent.com/wasm-isolated-runner-mcp/api/process
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/wasm-isolated-runner-mcp-ce31b216
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hNW7JsTpaJPvs2T0WB-8n

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 wasm-isolated-runner-mcp-ce31b216 -d '<json body>'
```

Example prompt: Can you run this data processing task in a WebAssembly-isolated sandbox and return the result? Here's the payload: '{"input": "hello world", "operation": "reverse"}'.

## When to prefer this

Choose this endpoint when you need to execute code, scripts, or data processing logic in a secure, WebAssembly-isolated sandbox environment — especially when handling untrusted or user-supplied inputs that must not interact with the host system. Prefer it over general compute when strong isolation guarantees are required.

## Known failure modes

- Invalid or malformed data string input returns a 400 bad request
- Execution timeout if processing exceeds resource limits
- Payment not completed or insufficient USDC balance returns 402
- Unsupported operation or data format causes processing failure
- Internal sandbox error results in 500 response

## 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 output of the computation or data processing job performed inside the WebAssembly-isolated environment, including processed results, transformed data, or execution responses corresponding to the submitted input payload.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/wasm-isolated-runner-mcp-ce31b216/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)