Citation Check

{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'The citation to check. http(s) only; private and loopback addresses are refused.'}, 'claim': {'type': 'string', 'description': 'Optional. The text that cites it — the sentence or finding this URL is meant to support. Without it you only learn whether the URL exists, which is the weaker half.'}}, 'additionalProperties': False}

{'type': 'object', 'required': [], 'properties': {}, 'additionalProperties': False}