<s>
The	B-Application
Google	I-Application
Chart	O
API	B-General_Concept
is	O
an	O
interactive	O
Web	O
service	O
(	O
now	O
deprecated	B-General_Concept
)	O
that	O
creates	O
graphical	O
charts	O
from	O
user-supplied	O
data	O
.	O
</s>
<s>
Google	B-Application
servers	O
create	O
a	O
PNG	O
image	O
of	O
a	O
chart	O
from	O
data	O
and	O
formatting	O
parameters	O
specified	O
by	O
a	O
user	O
's	O
HTTP	B-Protocol
request	O
.	O
</s>
<s>
Originally	O
the	O
API	B-General_Concept
was	O
Google	B-Application
's	I-Application
internal	O
tool	O
to	O
support	O
rapid	O
embedding	O
of	O
charts	O
within	O
Google	B-Application
's	I-Application
own	O
applications	O
(	O
like	O
Google	B-Application
Finance	I-Application
for	O
example	O
)	O
.	O
</s>
<s>
Google	B-Application
figured	O
it	O
would	O
be	O
a	O
useful	O
tool	O
to	O
open	O
up	O
to	O
web	O
developers	O
.	O
</s>
<s>
Currently	O
,	O
line	O
,	O
bar	O
,	O
pie	O
,	O
and	O
radar	B-Application
charts	I-Application
,	O
as	O
well	O
as	O
Venn	B-Application
diagrams	I-Application
,	O
scatter	B-Application
plots	I-Application
,	O
sparklines	B-Application
,	O
maps	O
,	O
google-o-meters	O
,	O
and	O
QR	O
codes	O
are	O
supported	O
.	O
</s>
<s>
Google	B-Application
deprecated	B-General_Concept
the	O
API	B-General_Concept
in	O
2012	O
with	O
guaranteed	O
availability	O
until	O
April	O
2015	O
.	O
</s>
<s>
On	O
March	O
18	O
,	O
2019	O
Google	B-Application
turned	O
off	O
the	O
API	B-General_Concept
.	O
</s>
<s>
Google	B-Application
recommends	O
the	O
successor	O
service	O
Google	B-Application
Charts	I-Application
.	O
</s>
