Api Endpoint

NullMine

Has a monitored public government document changed since a given time? Returns a timestamped observation of the City of Oakland stale-check list: changed true/false/null with observation age and coverage. Answers null when observation coverage cannot support a claim.

Open interactive test console

Offering

Provider: scan.35-253-195-79.sslip.io
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Legal And Compliance
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://scan.35-253-195-79.sslip.io/m/oakland/changed
MIME type: application/json
First seen: 2026-10-16T02:05:53.052Z
Last seen: 2026-11-02T02:15:24.665Z
Tags: change-detection, government-data

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x3f7f66132B2b791214D5640A21938c157fCAbd24"
  }
]

Observed health

Status: Healthy
Latest latency: 1905 ms
Average latency: 3003 ms
HTTP status: 402
Last checked: 2026-11-02T02:15:24.660Z
Reachability: 28.6% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "since": {
          "type": "string",
          "description": "ISO 8601"
        },
        "entity": {
          "type": "string",
          "description": "default oakland_stale_check_list"
        }
      },
      "required": [
        "since"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "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": [
            "since"
          ],
          "properties": {
            "since": {
              "type": "string",
              "description": "ISO 8601"
            },
            "entity": {
              "type": "string",
              "description": "default oakland_stale_check_list"
            }
          }
        }
      },
      "additionalProperties": false
    },
    "output": {
      "type": "object",
      "required": [
        "type"
      ],
      "properties": {
        "type": {
          "type": "string"
        },
        "example": {
          "type": "object",
          "properties": {
            "status": {
              "type": "string"
            },
            "changed": {
              "type": [
                "boolean",
                "null"
              ]
            }
          }
        }
      }
    }
  }
}