<s>
Yahoo	B-Application
!	I-Application
</s>
<s>
Query	B-Language
Language	I-Language
(	O
YQL	B-Application
)	O
is	O
an	O
SQL-like	O
query	B-Language
language	I-Language
created	O
by	O
Yahoo	B-Application
!	I-Application
</s>
<s>
YQL	B-Application
is	O
designed	O
to	O
retrieve	O
and	O
manipulate	O
data	O
from	O
APIs	B-General_Concept
through	O
a	O
single	O
Web	O
interface	O
,	O
thus	O
allowing	O
mashups	B-Application
that	O
enable	O
developers	O
to	O
create	O
their	O
own	O
applications	O
using	O
Yahoo	B-Application
!	I-Application
</s>
<s>
Initially	O
launched	O
in	O
October	O
2008	O
with	O
access	O
to	O
Yahoo	B-Application
APIs	B-General_Concept
,	O
February	O
2009	O
saw	O
the	O
addition	O
of	O
open	O
data	B-Application
tables	I-Application
from	O
third	O
parties	O
such	O
as	O
Google	B-Application
Reader	I-Application
,	O
the	O
Guardian	O
,	O
and	O
The	O
New	O
York	O
Times	O
.	O
</s>
<s>
Some	O
of	O
these	O
APIs	B-General_Concept
still	O
require	O
an	O
API	B-General_Concept
key	I-General_Concept
to	O
access	O
them	O
.	O
</s>
<s>
On	O
April	O
29	O
of	O
2009	O
,	O
Yahoo	B-Application
introduced	O
the	O
capability	O
to	O
execute	O
the	O
tables	O
of	O
data	O
built	O
through	O
YQL	B-Application
using	O
JavaScript	B-Language
run	O
on	O
the	O
company	O
's	O
servers	O
for	O
free	O
.	O
</s>
<s>
On	O
January	O
3	O
,	O
2019	O
,	O
Yahoo	B-Application
retired	O
the	O
YQL	B-Application
API	B-General_Concept
service	O
.	O
</s>
<s>
Use	O
of	O
the	O
YQL	B-Application
should	O
not	O
exceed	O
reasonable	O
request	O
volume	O
.	O
</s>
<s>
Per	O
IP	O
limits	O
:	O
/v1/public/	O
*	O
:	O
2,000	O
calls	O
per	O
hour	O
;	O
/v1/yql/	O
*	O
:	O
20,000	O
calls	O
per	O
hour	O
.	O
</s>
