From EVEDev

[edit] eve-marketdata.com

eve-marketdata.com has feeds and dumps for querying contributed market orders. Note that this is not live and 100% accurate data, as it is provided by users. Data gathering and uploads are done in the same way it was done by eve-metrics (suspended now) - it is fully automated.

The data provided is:

1. Recently updated data (TXT, XML, JSON via HTTP GET)
2. Current price of concrete item (TXT, XML, JSON via HTTP GET)
3. Current price for multiple items (TXT, XML, JSON via HTTP GET)
4. Daily sales history - same as in-game market/history tab (TXT, XML, JSON via HTTP GET)
5. Market orders (TXT, XML, JSON via HTTP GET)
6. Nightly MySQL database dumps (gziped SQL via HTTP)