# A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor

> A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor is a paid API for AI agents from alpha-stream.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-11-01).

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: POST https://alpha-stream.agentdiet.dev/v1/402-compliance?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Provider: alpha-stream.agentdiet.dev
- Website: https://alpha-stream.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/alpha-stream-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-029b53a0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D1wKvrLK1K6F71geR0pl8

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 alpha-stream-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-029b53a0 -d '<json body>'
```

Example prompt: Can you audit https://myagent.example.com/rpc and check whether it passes JSON-RPC compliance, meets latency SLA, has a valid OpenAPI schema, and correctly returns HTTP 402 payment settlement headers?

## When to prefer this

Choose this endpoint when you need to programmatically verify that an AI agent, MCP server, or x402-enabled API correctly implements JSON-RPC, HTTP 402 micropayment headers, OpenAPI schema, and latency SLA — especially before integrating with a third-party agent or launching your own. It is purpose-built for agentic protocol compliance rather than generic HTTP testing tools.

## Known failure modes

- Target URL is unreachable or times out — returns error with connectivity details
- Invalid or malformed URL input — returns validation error
- Target endpoint returns unexpected non-standard responses that cannot be parsed for compliance
- Latency SLA check inconclusive due to network variability
- HTTP 402 headers absent or malformed — flagged in report as non-compliant

## 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://alpha-stream.agentdiet.dev/v1/402-compliance)

## Output

Returns a structured compliance audit report covering JSON-RPC protocol adherence, measured latency against SLA thresholds, OpenAPI schema validation results, and the presence and correctness of HTTP 402 payment settlement headers 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/alpha-stream-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-029b53a0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alpha-stream.agentdiet.dev](https://www.zero.xyz/host/alpha-stream.agentdiet.dev/llms.txt)