Mods like this have been deprecated by rseding.. show your anger here:
https://forums.factorio.com/viewtopic.php?f=28&t=85372&p=497019
https://forums.factorio.com/viewtopic.php?f=28&t=84880&p=496029

Sorry but i can't update my mods anymore.
Most of my mods have a very unrestrictive license so feel free to take over...

A market, integrated into your inventory.
All prices are dynamically calculated.
Buy & Sell from your inventory or with automated entities.
Check out the AutoBuy extension.

DISCLAIMER:
Will mostly calculate the wrong prices for extreme overhauls like bobs, angels, (omnimatter?), etc...
You CAN make it load with "performance mode" and a low value for "recipes per item" but there's no official support for it.
I probably suggest not downloading this mod if you use angels/bobs

It only supports "strange matter" for recipes that create resources out of nothing.

Try the extension: https://mods.factorio.com/mod/market2_autobuy

Special Thanks to:
Albert ( https://www.twitch.tv/boxbox )
Arcani ( https://mods.factorio.com/mod/Hovercrafts )
Decafeiner
KiritoTRw
James Austin
Utah Valley Fence Company
Darkgamer504
Christian
Thank you so much for your support!!!!

My mods:
Combat:
- Turret Shields
- Laser Tanks
- Laser Rifle
- Railgun Revival
- Shield FX
- Desert Eagle
- Wave Defense Unlimited
- Blood & Gore
- Universal Turret
- DotA
- Glowing Laser Beams
- RPG Items
- Spell Pack

Basing:
- Realistic Reactors
- Realistic Reactors - Utilities
- Overloaded Trains
- Resource Spawning Ingame
- Transformers
- Speaker Signals Expansion
- Solar Panel Equipment
- 0.16 Graphics
- Unlushed Trees
- Bleached Trees
- Copy&Paste for 0.16
- Lua Combinator 2
- Lua Combinator 3
- Fire Department
- Robot Tree Farm
- Modder's Science Pack
- Assembling Machine Equipment
- Bottled Science
- Heat Glow
- Market
- Market - AutoBuy
- Wind Turbines
- Vehicle Physics