I need to automate posting messages to craigslist.org through their API.
Here is an up-to-date reference for the craigslist posting API(updated on 2nd of December 2013): http://www.craigslist.org/about/bulk_posting_interface
They have a really nice clean API, the only problem seems to be the cl:auth element you must provide:
<cl:auth username="listuser@bogus.com" password="p0stp@rty" accountID="14"/>
They describe accountID as: A craigslist account number with sufficient block credit (or an invoiced account), where the username supplied is an authorized buyer for this accountID.
I can't find any pricing information or details on craigslist.org.
How do I get my account authorized for posting messages? How can I get a valid accountID?
I recently came into the same issue. Here's the info on how to apply for a Paid account. You have to fill out the application on the Craiglist About pages here: http://www.craigslist.org/about/help/paid_posting_accounts