# x402station.io Preflight Batch

> x402station.io Preflight Batch is a paid API for AI agents from x402station.io, paid per call via x402, $0.025000/call, status down (last checked 2026-09-15).

Bulk-evaluates 1–50 x402 payment endpoints before an agent pays, returning a per-URL verdict plus an overall summary including settlement count and recency.

## Facts

- Endpoint: POST https://x402station.io/api/v1/preflight-batch
- Price: $0.025000/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402station-io-5f59e61f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dbUYnbE-9A2roydPnHk9a

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 x402station-io-5f59e61f -d '<json body>'
```

Example prompt: Before I pay any of these 12 x402 endpoints, run a preflight batch check on all of them and tell me which ones look risky, which are safe, and what the settlement history looks like for each.

## When to prefer this

Use this endpoint when an agent needs to screen multiple x402 endpoints in a single call before committing funds. It is more efficient than calling the single-URL preflight endpoint repeatedly, and cost-effective at a flat $0.025 for up to 50 URLs. Prefer it when orchestrating multi-step agentic workflows that might fan out to several x402 services simultaneously.

## Known failure modes

- More than 50 URLs submitted — batch size limit exceeded
- Malformed or non-x402 URLs in the input list
- Insufficient USDC balance to cover $0.025 fee
- Endpoint unreachable or x402 handshake fails for one or more URLs
- Network timeout on bulk evaluation

## How this service works

Independent risk-signal layer for x402 agentic commerce — endpoint evidence (decoy / zombie / price-trap / never-paid) before an agent authorizes payment.

## Output

Returns one verdict object per submitted URL (including ok, warnings, risk_score, recommended_action, settlement count and recency metadata) plus a top-level batch summary covering the full set of up to 50 URLs.

## Example request

```json
{
 "urls": [
  "https://example.com"
 ]
}
```

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "urls"
     ],
     "properties": {
      "urls": {
       "type": "array",
       "items": {
        "type": "string",
        "format": "uri"
       },
       "maxItems": 50,
       "minItems": 1
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "results": [
   {
    "ok": false,
    "url": "https://api.venice.ai/api/v1/chat/completions",
    "evidence": {
     "probes_1h": 6,
     "errors_30m": 5,
     "healthy_1h": 0,
     "price_amount_usdc": "0.10",
     "service_age_hours": 96.5
    },
    "metadata": {
     "url": "https://api.venice.ai/api/v1/chat/completions",
     "service": "Venice",
     "currency": "USDC",
     "is_active": true,
     "price_usdc": "0.10",
     "service_id": "venice",
     "uptime_1h_pct": 0,
     "avg_latency_ms": null
    },
    "warnings": [
     "zombie"
    ],
    "confidence": 0.95,
    "risk_score": 1,
    "reason_codes": [
     "zombie"
    ],
    "recommended_action": "use_alternatives"
   },
   {
    "ok": true,
    "url": "https://api.exa.ai/search",
    "evidence": {
     "probes_1h": 6,
     "errors_30m": 0,
     "healthy_1h": 6,
     "cdp_l30d_calls": 11,
     "price_amount_usdc": "0.007",
     "service_age_hours": 165.5,
     "cdp_l30d_unique_payers": 2
    },
    "metadata": {
     "url": "https://api.exa.ai/search",
     "service": "Exa",
     "currency": "USDC",
     "is_active": true,
     "price_usdc": "0.007",
     "service_id": "exa-ai",
     "established": false,
     "uptime_1h_pct": 100,
     "avg_latency_ms": 320,
     "has_free_trial": true
    },
    "warnings": [],
    "confidence": 0.95,
    "risk_score": 0,
    "reason_codes": [],
    "recommended_action": "pay"
   }
  ],
  "summary": {
   "ok": 1,
   "total": 2,
   "blocked": 1,
   "by_recommended_action": {
    "pay": 1,
    "use_alternatives": 1
   }
  },
  "observed_at": "2026-04-30T12:00:00Z",
  "paid_amount": "0.025",
  "effective_price_per_url": "0.0125"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402station-io-5f59e61f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402station.io](https://www.zero.xyz/host/x402station.io/llms.txt)