x402station.io API reference

Delist Feed — full catalog pruning snapshot

Full pruning state for catalog/index operators: every listing flagged for delisting with auditable evidence, plus recovered listings safe to re-list.

This HTML page is served by GET /api/v1/delist-feed. The paid API operation remains POST /api/v1/delist-feed.

Signature
POST /api/v1/delist-feed

Pricing
$5 USDC

Settlement
x402 v2 · exact · Base mainnet USDC

Canonical
https://x402station.io/api/v1/delist-feed

x402 challenge example

HTTP/1.1 402 Payment Required
payment-required: <base64 PaymentRequiredResponse>
www-authenticate: x402
content-type: application/json; charset=utf-8

{
  "x402Version": 2,
  "error": "Payment required",
  "resource": {
    "url": "https://x402station.io/api/v1/delist-feed",
    "description": "Delist Feed — full catalog pruning snapshot"
  },
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "asset": "USDC",
      "amount": "5000000",
      "payTo": "0x4053338C7cB38624C0bc23c900F78Cf8470b4E38",
      "maxTimeoutSeconds": 300
    }
  ]
}

Request body

{
  "scope": "all",
  "limit": 2000
}

Success response

{
  "generated_at": "2026-07-03T18:00:00.000Z",
  "mode": "snapshot",
  "counts": {
    "should_delist": 173,
    "newly_flagged": 4,
    "recovered": 2,
    "ghost_listings": 41,
    "by_reason": {
      "decoy_price_extreme": 120,
      "dead_7d": 9,
      "ghost_listing": 41
    }
  },
  "should_delist": [
    {
      "url": "https://api.example.com/dead",
      "reasons": [
        "dead_7d"
      ],
      "first_flagged_at": "2026-06-10T09:00:00.000Z",
      "flagged_days_consecutive": 23,
      "uptime_7d_pct": 0,
      "cdp_listed": true,
      "cdp_l30d_calls": 0,
      "confidence": "high"
    }
  ],
  "recovered": [
    {
      "url": "https://ml.example.com/embed",
      "was_reasons": [
        "mostly_dead"
      ],
      "flagged_until": "2026-07-03T06:00:00.000Z",
      "uptime_48h_pct": 99
    }
  ]
}

Error codes

status	meaning
`400`	Malformed JSON body, invalid URL, or missing required field.
`402`	Payment required. Decode payment-required, sign x402, retry.
`503`	Query/probe pipeline timeout. Treat as failed preflight; do not pay target blindly.

Notes