# A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor

> A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor is a paid API for AI agents from shopify-intel.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Audits a remote agent, MCP, or x402 service URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers

## Facts

- Endpoint: GET https://shopify-intel.agentdiet.dev/v1/mpp-verifier?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: shopify-intel.agentdiet.dev
- Website: https://shopify-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/shopify-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-86b2eade
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C9lUeqJ5w5FNub3LYSNA_

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 shopify-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-86b2eade
```

Example prompt: Can you audit https://myagent.example.com/mcp for JSON-RPC compliance, latency SLA, and HTTP 402 payment header support and tell me if it passes?

## When to prefer this

Use this endpoint when you need to programmatically verify that a remote A2A agent, MCP server, or x402-enabled API meets protocol compliance standards — especially JSON-RPC correctness, OpenAPI schema presence, HTTP 402 settlement header structure, and latency SLA. Prefer this over manual inspection or generic HTTP checkers when you specifically need multi-protocol compliance reporting across the A2A/MCP/x402 stack in a single call.

## Known failure modes

- Target URL is unreachable or returns a non-2xx/402 status — audit fails with connectivity error
- Target URL does not implement JSON-RPC — JSON-RPC compliance check fails
- Missing or malformed OpenAPI schema at the target — schema validation returns error
- No HTTP 402 headers present — payment compliance check returns non-compliant
- Invalid or missing url parameter — returns 400 bad request
- Target URL times out — latency SLA reported as exceeded

## How this service works

Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers. (Live x402 v2, IETF MPP & MCP endpoint at https://shopify-intel.agentdiet.dev/v1/mpp-verifier)

## Output

Returns a structured compliance report covering: JSON-RPC conformance pass/fail, measured latency vs SLA thresholds, OpenAPI schema presence and validity, and HTTP 402 payment settlement header correctness for the audited URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "minLength": 1,
   "description": "Target A2A, MCP, or x402 service URL to audit for protocol compliance"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/shopify-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-86b2eade/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shopify-intel.agentdiet.dev](https://www.zero.xyz/host/shopify-intel.agentdiet.dev/llms.txt)