flickrex

{
  "stat": "ok",
  "method": {
    "response": {
      "_content": "<rsp stat=\"ok\">\n <institutions>\n  <institution nsid=\"123456@N01\" date_launch=\"1232000000\">\n   <name>Institution</name>\n    <urls>\n     <url type=\"site\">http://example.com/</url>\n     <url type=\"license\">http://example.com/commons/license</url>\n     <url type=\"flickr\">http://flickr.com/photos/institution</url>\n    </urls>\n   </institution>\n  </institutions>\n</rsp>"
    },
    "requiredperms": 0,
    "needssigning": 0,
    "needslogin": 0,
    "name": "flickr.commons.getInstitutions",
    "description": {
      "_content": "Retrieves a list of the current Commons institutions."
    }
  },
  "errors": {
    "error": [
      {
        "message": "Invalid API Key",
        "code": 100,
        "_content": "The API key passed was not valid or has expired."
      },
      {
        "message": "Service currently unavailable",
        "code": 105,
        "_content": "The requested service is temporarily unavailable."
      },
      {
        "message": "Write operation failed",
        "code": 106,
        "_content": "The requested operation failed due to a temporary issue."
      },
      {
        "message": "Format \"xxx\" not found",
        "code": 111,
        "_content": "The requested response format was not found."
      },
      {
        "message": "Method \"xxx\" not found",
        "code": 112,
        "_content": "The requested method was not found."
      },
      {
        "message": "Invalid SOAP envelope",
        "code": 114,
        "_content": "The SOAP envelope send in the request could not be parsed."
      },
      {
        "message": "Invalid XML-RPC Method Call",
        "code": 115,
        "_content": "The XML-RPC request document could not be parsed."
      },
      {
        "message": "Bad URL found",
        "code": 116,
        "_content": "One or more arguments contained a URL that has been used for abuse on Flickr."
      }
    ]
  },
  "arguments": {
    "argument": [
      {
        "optional": 0,
        "name": "api_key",
        "_content": "Your API application key. <a href=\"/services/api/misc.api_keys.html\">See here</a> for more details."
      }
    ]
  }
}