# A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor

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

Audits a target URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers (x402/MPP/MCP protocol conformance)

## Facts

- Endpoint: GET https://sec-intel.agentdiet.dev/v1/x402-mpp-paywall-verifier?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: sec-intel.agentdiet.dev
- Website: https://sec-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/sec-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-d0a58d6f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t6IibKAZvHX3aUGWJWa7U

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 sec-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-d0a58d6f
```

Example prompt: Can you audit https://example-agent.com/mcp to check whether it's properly JSON-RPC compliant, meets latency SLAs, has a valid OpenAPI schema, and correctly implements HTTP 402 payment headers?

## When to prefer this

Choose this endpoint when you need to programmatically verify that a remote agent, MCP server, or x402-enabled API endpoint correctly implements protocol compliance across JSON-RPC, OpenAPI schema, latency SLA, and HTTP 402 payment headers — particularly before integrating third-party agent endpoints into an autonomous workflow or verifying your own deployment meets spec.

## Known failure modes

- Target URL is unreachable or times out — returns connectivity error
- URL does not implement any auditable protocol — may return empty or partial results
- Malformed or non-URL input string — validation error on required 'url' parameter
- Target returns unexpected response format — partial compliance report with warnings
- x402/MCP protocols not detected at target — compliance fields return non-compliant status

## 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://sec-intel.agentdiet.dev/v1/x402-mpp-paywall-verifier)

## Output

Returns a structured audit report covering JSON-RPC protocol compliance status, measured latency against SLA thresholds, OpenAPI schema validity, and HTTP 402/x402 payment settlement header presence and correctness for the submitted 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/sec-intel-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-d0a58d6f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sec-intel.agentdiet.dev](https://www.zero.xyz/host/sec-intel.agentdiet.dev/llms.txt)