# A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor

> A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor is a paid API for AI agents from cve-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://cve-intel.agentdiet.dev/v1/402-compliance?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: cve-intel.agentdiet.dev
- Website: https://cve-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/cve-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-1b0a1ebb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qOzxmoVfDmvahO0nUpsmJ

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 cve-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-1b0a1ebb
```

Example prompt: Can you audit https://my-agent.example.com/api 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 AI agent endpoint, MCP server, or x402 payment-enabled service conforms to JSON-RPC, OpenAPI, and HTTP 402/x402 v2 protocol standards before integration or deployment. Prefer it over generic HTTP testing tools when you specifically need protocol-layer compliance checks across MCP, A2A, and payment settlement header standards in a single call.

## Known failure modes

- Target URL is unreachable or returns a network error — audit fails with connectivity error
- Target URL is not a valid A2A, MCP, or x402 endpoint — returns non-compliance findings
- Missing required 'url' query parameter — returns 400 Bad Request
- Target endpoint has a very high latency — SLA check fails with latency violation
- URL responds with unexpected content type — schema validation may be incomplete

## 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://cve-intel.agentdiet.dev/v1/402-compliance)

## Output

Returns a structured audit report covering JSON-RPC compliance status, measured latency against SLA thresholds, OpenAPI schema validity findings, and HTTP 402 payment settlement header conformance for the target 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/cve-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-1b0a1ebb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cve-intel.agentdiet.dev](https://www.zero.xyz/host/cve-intel.agentdiet.dev/llms.txt)