Where can program obtain quotes via Internet connection?

[C. Sowash]

I'm working on a program to do some stock analysis. Are there any sites
that a program can connect to to obtain stock quotes? Delayed quotes are
fine, but I want a free site. I can always connect to a public site like
finance.google.com and parse the quotes out of HTML text pages, but I would
prefer to find a site that returns quote information in a format better
designed for programs to digest.

Here's what I'm looking for:

1. Defined data blocks for quotes (XML will be fine).
2. On-demand quotes rather than a continuous stream.
3. Both primary and options (puts/calls) quotes for stocks.
4. No cost for service.

[arthur]

The CBOE used to provide a free API but I don't know if still true.
Interactive Brokers ( IB ) has an API for customers.
Might be others natch.

arthur
==

On Sun, 2 Apr 2006 20:43:19 GMT, "C. Sowash"

Post by C. Sowash
I'm working on a program to do some stock analysis. Are there any sites
that a program can connect to to obtain stock quotes? Delayed quotes are
fine, but I want a free site. I can always connect to a public site like
finance.google.com and parse the quotes out of HTML text pages, but I would
prefer to find a site that returns quote information in a format better
designed for programs to digest.
1. Defined data blocks for quotes (XML will be fine).
2. On-demand quotes rather than a continuous stream.
3. Both primary and options (puts/calls) quotes for stocks.
4. No cost for service.