# IMPERIUM PREFLIGHT — Multi-Facilitator x402, ERC-8004 & IETF MPP Readiness Auditor

> IMPERIUM PREFLIGHT — Multi-Facilitator x402, ERC-8004 & IETF MPP 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 against Polymarket alpha data, checking compliance with x402 v2, Dexter gas floor, IETF MPP, MCP Streamable HTTP, A2A v0.3.0 agent cards, OASF records, and ERC-8004 identity standards.

## Facts

- Endpoint: GET https://preflight.agentdiet.dev/v1/polymarket-alpha?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-facilitator-x402-erc-8004-ietf-mpp-readiness-7a4d3fc5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qt1CD1k5B3H-fbGgIs97R

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-facilitator-x402-erc-8004-ietf-mpp-readiness-7a4d3fc5
```

Example prompt: Run a Polymarket alpha pre-flight readiness audit using a GET request — I want to see if my agent stack passes all 8 gates for x402, ERC-8004, and IETF MPP compliance.

## When to prefer this

Choose this endpoint when you need a single automated pass/fail audit across multiple emerging agent and payment standards simultaneously — specifically x402 v2, ERC-8004, IETF MPP, MCP Streamable HTTP, A2A v0.3.0, OASF, and Dexter gas floor. It is preferable over manual per-standard checks when you want a unified readiness score and ROI compression proof in one call, especially in Polymarket alpha contexts.

## Known failure modes

- Invalid or missing 'type' or 'method' fields in input returns a validation error
- Unsupported method value (not GET or POST) results in schema rejection
- Downstream standard APIs or data sources unavailable causing incomplete gate results
- Payment failure or insufficient USDC balance blocks the request
- Rate limiting or quota exhaustion returns an error response

## 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 per-gate audit results, and a roi_proof object including a compression_ratio_pct metric (e.g. 91.4%) indicating how efficiently the readiness report was delivered.

## 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-facilitator-x402-erc-8004-ietf-mpp-readiness-7a4d3fc5/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)