# IMPERIUM PREFLIGHT Multi-Protocol Readiness Auditor

> IMPERIUM PREFLIGHT Multi-Protocol Readiness Auditor is a paid API for AI agents from preflight.agentdiet.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Runs an automated 8-gate pre-flight readiness audit across x402 v2, IETF MPP, MCP Streamable HTTP, A2A v0.3.0, OASF, ERC-8004, and Dexter gas floor standards

## Facts

- Endpoint: GET https://preflight.agentdiet.dev/v1/event-probabilities?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/imperium-preflight-multi-protocol-readiness-auditor-266ffdc4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CzgUfn5jp0bb46alFpyL0

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 imperium-preflight-multi-protocol-readiness-auditor-266ffdc4
```

Example prompt: Run a pre-flight readiness audit on my agent setup — I want to check compliance across x402 v2, IETF MPP, ERC-8004 identity, and MCP Streamable HTTP before I go live.

## When to prefer this

Use this endpoint when you need a structured, multi-standard compliance check across the full stack of emerging agent payment and identity protocols (x402 v2, IETF MPP, ERC-8004, A2A, OASF, MCP) in a single call, rather than checking each protocol separately. Ideal for pre-deployment validation of AI agent infrastructure or payment-enabled APIs.

## Known failure modes

- Missing required 'type' or 'method' fields returns a validation error
- Invalid enum value for method (not GET or POST) causes schema rejection
- Upstream protocol specification data unavailable may return partial gate results
- Network timeout on live protocol checks may cause incomplete audit
- Topic parameter not recognized may result in empty or generic audit output

## How this service works

Automated 8-gate pre-flight readiness auditor for x402 v2, Dexter gas floor, IETF MPP, MCP Streamable HTTP, A2A v0.3.0 agent cards, OASF records, and ERC-8004 identity.

## Output

Returns a JSON object with a status field ('ok' or error), a data object containing gate-by-gate audit findings, and an roi_proof block including a compression_ratio_pct metric indicating how efficiently the response was summarized relative to raw input.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "POST"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "topic": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "status": "ok",
  "roi_proof": {
   "compression_ratio_pct": 91.4
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/imperium-preflight-multi-protocol-readiness-auditor-266ffdc4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from preflight.agentdiet.dev](https://www.zero.xyz/host/preflight.agentdiet.dev/llms.txt)