What ERP's have a decent Ruby Connector or thorough API built?

I'm a Ruby on Rails developer looking for an open source ERP which has a Ruby connector or a very robust, thorough API I can use.

I know Ruby has XLSuite, but it seems kinda outdated and am just exploring other platforms.

The closest I've found so far is OpenERP + the OOOR gem. My concern with OpenERP is the number of bugs and problems people have posted - my sole reason of using a ERP to start with and not building anything custom, is so I don't have to fix core bugs on the platform and focus on customization.

Of course if thi开发者_如何学Cs doesn't exist, the alternative is to access alot of the ERP functions through the API. If this is the case, any recommendations on an ERP which has a very thorough, stable API?

OpenERP can be accessed by xml-rpc. Here is an example in Ruby:

Login:

require 'xmlrpc/client'

database = "terp"
username = "admin"
password = "admin"

socket = XMLRPC::Client.new( 'http://localhost', '/xmlrpc/common', 8069 )
user_id = socket.login( database, username, password )

Search (after a successful login):

socket = XMLRPC::Client.new( 'http://localhost', '/xmlrpc/object', 8069 )
ids = socket.execute(
    database, user_id, password,
    'res.partner', 'search', []
)
partners = socket.execute(
    database, user_id, password,
    'res.partner', 'read', ['name']
)

for partner in partners:
    print "partner: %s" % [ partner['name'] ]