IEconService – Steam Web API Documentation

This page is just a reference of all the known Steam APIs, I do not know how they work. Please do not email me with questions.

PUBLISHERPOSTFlushAssetAppearanceCache

Flushes the display cache for assets. This will result in calls to GetAssetClassInfo for each asset class the next time it is displayed.

https://partner.steam-api.com/IEconService/FlushAssetAppearanceCache/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
appid		uint32	Yes

PUBLISHERPOSTFlushContextCache

Flushes the cache of inventory contents. This will result in calls to GetContexts and GetContextContents to get fresh data for each user next time Steam needs their inventory.

https://partner.steam-api.com/IEconService/FlushContextCache/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
appid		uint32	Yes

PUBLISHERPOSTFlushInventoryCache

Flushes the cache for a user's inventory in a specific app context

https://partner.steam-api.com/IEconService/FlushInventoryCache/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
steamid		uint64	Yes	User to clear cache for.
appid		uint32	Yes	App to clear cache for.
contextid		uint64	Yes	Context to clear cache for.

UNDOCUMENTEDGetAssetClassInfo

https://api.steampowered.com/IEconService/GetAssetClassInfo/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
language		string	No
appid		uint32	No
classes[0]		CEcon_GetAssetClassInfo_Request.Class[]	No
↳ classid		uint64	No
↳ instanceid		uint64	No
high_pri		bool	No

UNDOCUMENTEDGetAssetPropertySchema

https://api.steampowered.com/IEconService/GetAssetPropertySchema/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
appid		uint32	No
language		string	No

UNDOCUMENTEDGetInventoryItemsWithDescriptions

Gets a set of items from a users inventory, along with descriptions

https://api.steampowered.com/IEconService/GetInventoryItemsWithDescriptions/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
steamid		fixed64	No
appid		uint32	No
contextid		uint64	No
get_descriptions		bool	No
for_trade_offer_verification		bool	No
language		string	No
filters		CEcon_GetInventoryItemsWithDescriptions_Request.FilterOptions	No
↳ assetids[0]		uint64[]	No
↳ currencyids[0]		uint32[]	No
↳ tradable_only		bool	No
↳ marketable_only		bool	No
start_assetid		uint64	No
count		int32	No
get_asset_properties		bool	No

GETGetTradeHistory

Gets a history of trades

https://api.steampowered.com/IEconService/GetTradeHistory/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
max_trades		uint32	Yes	The number of trades to return information for
start_after_time		uint32	Yes	The time of the last trade shown on the previous page of results, or the time of the first trade if navigating back
start_after_tradeid		uint64	Yes	The tradeid shown on the previous page of results, or the ID of the first trade if navigating back
navigating_back		bool	Yes	The user wants the previous page of results, so return the previous max_trades trades before the start time and ID
get_descriptions		bool	Yes	If set, the item display data for the items included in the returned trades will also be returned
language		string	Yes	The language to use when loading item display data
include_failed		bool	Yes
include_total		bool	Yes	If set, the total number of trades the account has participated in will be included in the response

GETGetTradeHoldDurations

Returns the estimated hold duration and end date that a trade with a user would have

https://api.steampowered.com/IEconService/GetTradeHoldDurations/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
steamid_target		uint64	Yes	User you are trading with
trade_offer_access_token		string	Yes	A special token that allows for trade offers from non-friends.

GETGetTradeOffer

Gets a specific trade offer

https://api.steampowered.com/IEconService/GetTradeOffer/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
tradeofferid		uint64	Yes
language		string	Yes
get_descriptions		bool	Yes	If set, the item display data for the items included in the returned trade offers will also be returned. If one or more descriptions can't be retrieved, then your request will fail.

GETGetTradeOffers

Get a list of sent or received trade offers

https://api.steampowered.com/IEconService/GetTradeOffers/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
get_sent_offers		bool	Yes	Request the list of sent offers.
get_received_offers		bool	Yes	Request the list of received offers.
get_descriptions		bool	Yes	If set, the item display data for the items included in the returned trade offers will also be returned. If one or more descriptions can't be retrieved, then your request will fail.
language		string	Yes	The language to use when loading item display data.
active_only		bool	Yes	Indicates we should only return offers which are still active, or offers that have changed in state since the time_historical_cutoff
historical_only		bool	Yes	Indicates we should only return offers which are not active.
time_historical_cutoff		uint32	Yes	When active_only is set, offers updated since this time will also be returned. When historical_only is set, only offers updated since this time are included.
cursor		uint32	No	Cursor aka start index

GETGetTradeOffersSummary

Get counts of pending and new trade offers

https://api.steampowered.com/IEconService/GetTradeOffersSummary/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
time_last_visit		uint32	Yes	The time the user last visited. If not passed, will use the time the user last visited the trade offer page.

GETGetTradeStatus

Gets status for a specific trade

https://api.steampowered.com/IEconService/GetTradeStatus/v1/

Name	Value	Type	Required	Description
key	click to set	string	Yes	Access key
tradeid		uint64	Yes
get_descriptions		bool	Yes	If set, the item display data for the items included in the returned trades will also be returned
language		string	Yes	The language to use when loading item display data