# Cross-Chain L402 Verifier MCP

> Cross-Chain L402 Verifier MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-11-04).

Verifies L402 payment credentials and proofs across multiple blockchain networks

## Facts

- Endpoint: POST https://api.m2mcent.com/cross-chain-l402-verifier-mcp/api/process?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cross-chain-l402-verifier-mcp-1e8c7061
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mC53hesPcGlM8GTXW1PlA

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 cross-chain-l402-verifier-mcp-1e8c7061 -d '<json body>'
```

Example prompt: Can you verify this L402 payment credential to confirm it's valid across chains? Here's the token data: eyJhbGciOiJIUzI1NiJ9...

## When to prefer this

Choose this endpoint when you need to verify L402 payment credentials that span multiple blockchain networks, particularly when a single-chain validator is insufficient. Ideal for multi-chain payment gating, cross-chain subscription systems, or any workflow where L402 tokens must be authenticated across heterogeneous chains.

## Known failure modes

- Invalid or malformed L402 token returns a verification failure
- Unsupported blockchain network results in an error response
- Expired credential may return invalid status
- Missing or empty data field returns a bad request error
- Network timeout if cross-chain lookup takes too long

## 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 verification result indicating whether the provided L402 payment credential or proof is valid across the specified blockchain networks, including validity status and any relevant chain confirmation details.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cross-chain-l402-verifier-mcp-1e8c7061/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)