ToolAssay

Every Android app signed by one signing certificate

Every Android app signed by one signing certificate: look up a SHA-256 certificate fingerprint to find all packages and publishers that key has signed. Finds repackaged apps and related malware families, since a key that signed one repackaged app has usually signed others. Keyless pay-per-call in USDC on Base or Solana: no account or API key.

Answeringour last check, 2026-10-25
2 of 2checks answered this week
1557 msmedian answer time
$0.05listed price per call
$0.05price it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

GET https://apkcube.com/api/v1/lookup/certificate/:fingerprint

CategoryMarket data
Provider hostapkcube.com
Networkseip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
Payment schemesexact
Self-reported calls, 30 days1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

DayResultHTTPAskedTime
2026-10-25 valid payment request 402$0.05 2720 ms
2026-10-24 valid payment request 402$0.05 395 ms

Example input (from the provider)

{
  "method": "GET",
  "pathParams": {
    "fingerprint": "fb920d381bee1b2093f27dc8f13d994da629dc91887d0529b35c9a2dc4f4a6c2"
  },
  "queryParams": {},
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "pathParams": {
          "properties": {
            "fingerprint": {
              "description": "SHA-256 fingerprint of the DER certificate, 64 hex characters, with or without colons.",
              "type": "string"
            }
          },
          "required": [
            "fingerprint"
          ],
          "type": "object"
        },
        "queryParams": {
          "properties": {
            "page": {
              "description": "1-based page. Defaults to 1.",
              "minimum": 1,
              "type": "integer"
            },
            "per": {
              "description": "Rows per page, 1\u201396. Defaults to 24.",
              "maximum": 96,
              "minimum": 1,
              "type": "integer"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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