# Midax402 Premium Intelligence (Evidence+ x402)

> Midax402 Premium Intelligence (Evidence+ x402) is a paid API for AI agents from midax402.com, paid per call via x402, $0.07/call, status unknown (last checked 2026-09-15).

Delivers premium x402 ecosystem intelligence with expanded corpus retrieval, local risk briefing, contradiction scanning, and a concrete action plan on Base Mainnet.

## Facts

- Endpoint: GET https://midax402.com/midas-ops/premium
- Price: $0.07/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/midax402-premium-intelligence-evidence-x402-f6764d0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dGigErzmLwTA1FmUYxTB4

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 midax402-premium-intelligence-evidence-x402-f6764d0e
```

Example prompt: Give me a premium risk brief on x402 prompt injection attacks and a concrete action plan — I need the expanded corpus analysis, contradiction scan, and facilitator comparison between CDP and Circle Nano on Base Mainnet.

## When to prefer this

Choose this premium endpoint over the standard Midax402 tiers when you need expanded corpus retrieval depth, explicit contradiction scanning between sources, a structured risk brief, and an actionable plan — not just a raw intelligence summary. It is especially valuable for security audits, facilitator due diligence, or infrastructure decisions on Base Mainnet where conflicting information exists across the x402 ecosystem.

## Known failure modes

- Missing or empty 'query' parameter returns 400 bad request
- Payment of $0.07 USDC not fulfilled via x402 header causes 402 Payment Required
- Query outside supported domains (e.g. non-x402 topics) may return empty or low-confidence results
- Facilitator name misspelled may result in partial match or no comparison data
- Rate limiting or upstream LLM timeout may cause 503 or delayed response

## How this service works

Midax402 — x402 ecosystem intelligence: protocols, facilitators, agent commerce, and market analysis, payable on Algorand Mainnet and Base Mainnet. Non-personalized analysis of x402 ecosystem data, not financial advice.

## Output

A structured intelligence report containing expanded corpus retrieval findings, a local risk brief, a contradiction scan across sources, and a concrete action plan — all focused on the queried x402 ecosystem topic (facilitators, payment flows, security, standards, or infrastructure on Base Mainnet).

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "description": "x402 ecosystem question. Supported domains: payment flow and headers, facilitator comparison (CDP/XPay/Circle Nano/thirdweb/Agenticpay/x402-rs), security mitigations (Five Attacks, PII, prompt injection), standards (MCP, A2A, ERC-8004), micropayments/pricing, SDK integration, and infrastructure analysis across the x402 ecosystem."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tier": "premium",
  "summary": "The CDP Facilitator processes ~N requests/day across known x402 services. Top categories: crypto_data, storage, social_intelligence.",
  "verdict": "answered",
  "endpoint": "Midax402",
  "disclaimer": "Non-personalized analysis of x402 ecosystem data, not financial advice.",
  "evidence_grade": "broad"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/midax402-premium-intelligence-evidence-x402-f6764d0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from midax402.com](https://www.zero.xyz/host/midax402.com/llms.txt)