# agentdiet-mpp-verifier: A2A, MCP & HTTP 402 SLA Compliance Auditor

> agentdiet-mpp-verifier: A2A, MCP & HTTP 402 SLA Compliance Auditor is a paid API for AI agents from agentdiet.dev, paid per call via x402 or MPP, $0.01/call, status unknown (last checked 2026-10-20).

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

## Facts

- Endpoint: GET https://agentdiet.dev/v1/mpp-verifier?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-mpp-verifier-a2a-mcp-http-402-sla-compliance-auditor-d16c6522
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jZKpSpqaORakPYb46GR5U

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 agentdiet-mpp-verifier-a2a-mcp-http-402-sla-compliance-auditor-d16c6522
```

Example prompt: Can you audit my MCP server at https://myagent.example.com/mcp using a GET request and check if it passes JSON-RPC compliance, latency SLA, OpenAPI schema validation, and HTTP 402 payment headers?

## When to prefer this

Use this endpoint when you need to programmatically verify that a remote agent, MCP server, or HTTP 402-enabled API meets compliance standards before integration, listing on a marketplace, or production use. Prefer it over manual inspection when you need a structured, machine-readable audit report covering JSON-RPC, latency, schema, and payment header compliance in a single call.

## Known failure modes

- Target URL is unreachable or returns a network error
- Target endpoint does not respond within latency SLA window
- Malformed or missing input URL returns validation error
- Target URL does not expose an OpenAPI schema for validation
- HTTP 402 headers absent or malformed on the target endpoint

## 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://agentdiet.dev/v1/mpp-verifier)

## Output

Returns a structured compliance audit report covering: JSON-RPC compliance pass/fail, latency SLA measurement and status, OpenAPI schema validation result, and HTTP 402 settlement header presence and validity for the audited endpoint 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/agentdiet-mpp-verifier-a2a-mcp-http-402-sla-compliance-auditor-d16c6522/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdiet.dev](https://www.zero.xyz/host/agentdiet.dev/llms.txt)