> ## Documentation Index > Fetch the complete documentation index at: https://docs.mannco.store/llms.txt > Use this file to discover all available pages before exploring further. # Market stream > Live WebSocket stream of Mannco.store market events (price changes, new and removed listings) ## AsyncAPI ````yaml asyncapi.json marketStream id: marketStream title: Market stream description: >- Live stream of market events: price changes, new and removed listings, and buy order activity (added, removed, updated, activated, deactivated). servers: - id: production protocol: wss host: api.mannco.store bindings: [] variables: [] address: /ws parameters: [] bindings: [] operations: - &ref_38 id: receiveMarketEvents title: Receive market events description: Receive live market events broadcast by the server. type: receive messages: - &ref_39 id: priceChanged contentType: application/json payload: - name: Price changed description: A listing's price was updated. type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_0 - 1782403724 required: true - name: data type: object required: true properties: - name: id type: integer description: Listing id. examples: &ref_1 - 57322926 required: true - name: assetId type: string description: Steam asset id of the listed item. examples: &ref_2 - '17188460072' required: true - name: itemId type: integer description: Catalog item id. examples: &ref_3 - 1536 required: true - name: oldPrice type: integer description: Previous price in integer cents. examples: &ref_4 - 1527 required: true - name: newPrice type: integer description: New price in integer cents. examples: &ref_5 - 1525 required: true headers: [] jsonPayloadSchema: type: object description: Emitted when the price of an existing listing changes. required: - event - ts - data properties: event: type: string const: price_changed description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_0 x-parser-schema-id: data: type: object required: - id - assetId - itemId - oldPrice - newPrice properties: id: type: integer description: Listing id. examples: *ref_1 x-parser-schema-id: assetId: type: string description: Steam asset id of the listed item. examples: *ref_2 x-parser-schema-id: itemId: type: integer description: Catalog item id. examples: *ref_3 x-parser-schema-id: oldPrice: type: integer description: Previous price in integer cents. examples: *ref_4 x-parser-schema-id: newPrice: type: integer description: New price in integer cents. examples: *ref_5 x-parser-schema-id: x-parser-schema-id: examples: - event: price_changed ts: 1782403724 data: id: 57322926 assetId: '17188460072' itemId: 1536 oldPrice: 1527 newPrice: 1525 x-parser-schema-id: PriceChanged title: Price changed description: A listing's price was updated. example: |- { "event": "price_changed", "ts": 1782403724, "data": { "id": 57322926, "assetId": "17188460072", "itemId": 1536, "oldPrice": 1527, "newPrice": 1525 } } bindings: [] extensions: - id: x-parser-unique-object-id value: priceChanged - &ref_40 id: listingAdded contentType: application/json payload: - name: Listing added description: A new listing was added to the market. type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_6 - 1782403704 required: true - name: data type: object required: true properties: - name: id type: integer description: Listing id. examples: &ref_7 - 57348505 required: true - name: assetId type: string description: Steam asset id of the listed item. examples: &ref_8 - '17190178976' required: true - name: itemId type: integer description: Catalog item id. examples: &ref_9 - 16145 required: true - name: price type: integer description: Listing price in integer cents. examples: &ref_10 - 61 required: true headers: [] jsonPayloadSchema: type: object description: Emitted when a new listing is added to the market. required: - event - ts - data properties: event: type: string const: listing_added description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_6 x-parser-schema-id: data: type: object required: - id - assetId - itemId - price properties: id: type: integer description: Listing id. examples: *ref_7 x-parser-schema-id: assetId: type: string description: Steam asset id of the listed item. examples: *ref_8 x-parser-schema-id: itemId: type: integer description: Catalog item id. examples: *ref_9 x-parser-schema-id: price: type: integer description: Listing price in integer cents. examples: *ref_10 x-parser-schema-id: x-parser-schema-id: examples: - event: listing_added ts: 1782403704 data: id: 57348505 assetId: '17190178976' itemId: 16145 price: 61 x-parser-schema-id: ListingAdded title: Listing added description: A new listing was added to the market. example: |- { "event": "listing_added", "ts": 1782403704, "data": { "id": 57348505, "assetId": "17190178976", "itemId": 16145, "price": 61 } } bindings: [] extensions: - id: x-parser-unique-object-id value: listingAdded - &ref_41 id: listingRemoved contentType: application/json payload: - name: Listing removed description: A listing was removed from the market. type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_11 - 1782403724 required: true - name: data type: object required: true properties: - name: id type: integer description: Listing id that was removed. examples: &ref_12 - 57348505 required: true headers: [] jsonPayloadSchema: type: object description: Emitted when a listing is removed from the market. required: - event - ts - data properties: event: type: string const: listing_removed description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_11 x-parser-schema-id: data: type: object required: - id properties: id: type: integer description: Listing id that was removed. examples: *ref_12 x-parser-schema-id: x-parser-schema-id: examples: - event: listing_removed ts: 1782403724 data: id: 57348505 x-parser-schema-id: ListingRemoved title: Listing removed description: A listing was removed from the market. example: |- { "event": "listing_removed", "ts": 1782403724, "data": { "id": 57348505 } } bindings: [] extensions: - id: x-parser-unique-object-id value: listingRemoved - &ref_42 id: buyorderAdded contentType: application/json payload: - name: Buy order added description: A new buy order was created. type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_13 - 1782403724 required: true - name: data type: object required: true properties: - name: id type: integer description: Buy order id. examples: &ref_14 - 880421 required: true - name: itemId type: integer description: Catalog item id. examples: &ref_15 - 1536 required: true - name: price type: integer description: Buy order price in integer cents. examples: &ref_16 - 1525 required: true - name: amount type: integer description: >- Quantity requested by the buy order. A positive value denotes an active order; a negative value denotes an inactive one. examples: &ref_17 - 5 required: true headers: [] jsonPayloadSchema: type: object description: >- Emitted when a new buy order is created (non-zero amount) and is not yet tracked. required: - event - ts - data properties: event: type: string const: buyorder_added description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_13 x-parser-schema-id: data: type: object required: - id - itemId - price - amount properties: id: type: integer description: Buy order id. examples: *ref_14 x-parser-schema-id: itemId: type: integer description: Catalog item id. examples: *ref_15 x-parser-schema-id: price: type: integer description: Buy order price in integer cents. examples: *ref_16 x-parser-schema-id: amount: type: integer description: >- Quantity requested by the buy order. A positive value denotes an active order; a negative value denotes an inactive one. examples: *ref_17 x-parser-schema-id: x-parser-schema-id: examples: - event: buyorder_added ts: 1782403724 data: id: 880421 itemId: 1536 price: 1525 amount: 5 x-parser-schema-id: BuyorderAdded title: Buy order added description: A new buy order was created. example: |- { "event": "buyorder_added", "ts": 1782403724, "data": { "id": 880421, "itemId": 1536, "price": 1525, "amount": 5 } } bindings: [] extensions: - id: x-parser-unique-object-id value: buyorderAdded - &ref_43 id: buyorderRemoved contentType: application/json payload: - name: Buy order removed description: A tracked buy order reached an amount of 0 and was removed. type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_18 - 1782403724 required: true - name: data type: object required: true properties: - name: id type: integer description: Buy order id that was removed. examples: &ref_19 - 880421 required: true - name: itemId type: integer description: Catalog item id. examples: &ref_20 - 1536 required: true - name: oldPrice type: integer description: Price of the buy order before removal, in integer cents. examples: &ref_21 - 1525 required: true headers: [] jsonPayloadSchema: type: object description: >- Emitted when a tracked buy order reaches an amount of 0 and is removed. required: - event - ts - data properties: event: type: string const: buyorder_removed description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_18 x-parser-schema-id: data: type: object required: - id - itemId - oldPrice properties: id: type: integer description: Buy order id that was removed. examples: *ref_19 x-parser-schema-id: itemId: type: integer description: Catalog item id. examples: *ref_20 x-parser-schema-id: oldPrice: type: integer description: Price of the buy order before removal, in integer cents. examples: *ref_21 x-parser-schema-id: x-parser-schema-id: examples: - event: buyorder_removed ts: 1782403724 data: id: 880421 itemId: 1536 oldPrice: 1525 x-parser-schema-id: BuyorderRemoved title: Buy order removed description: A tracked buy order reached an amount of 0 and was removed. example: |- { "event": "buyorder_removed", "ts": 1782403724, "data": { "id": 880421, "itemId": 1536, "oldPrice": 1525 } } bindings: [] extensions: - id: x-parser-unique-object-id value: buyorderRemoved - &ref_44 id: buyorderUpdated contentType: application/json payload: - name: Buy order updated description: A buy order's price or amount changed. type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_22 - 1782403724 required: true - name: data type: object required: true properties: - name: id type: integer description: Buy order id. examples: &ref_23 - 880421 required: true - name: itemId type: integer description: Catalog item id. examples: &ref_24 - 1536 required: true - name: oldPrice type: integer description: Previous price in integer cents. examples: &ref_25 - 1525 required: true - name: newPrice type: integer description: New price in integer cents. examples: &ref_26 - 1530 required: true - name: oldAmount type: integer description: Previous quantity requested. examples: &ref_27 - 5 required: true - name: newAmount type: integer description: New quantity requested. examples: &ref_28 - 3 required: true headers: [] jsonPayloadSchema: type: object description: >- Emitted when a buy order's price or amount changes without a change of sign on the amount. required: - event - ts - data properties: event: type: string const: buyorder_updated description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_22 x-parser-schema-id: data: type: object required: - id - itemId - oldPrice - newPrice - oldAmount - newAmount properties: id: type: integer description: Buy order id. examples: *ref_23 x-parser-schema-id: itemId: type: integer description: Catalog item id. examples: *ref_24 x-parser-schema-id: oldPrice: type: integer description: Previous price in integer cents. examples: *ref_25 x-parser-schema-id: newPrice: type: integer description: New price in integer cents. examples: *ref_26 x-parser-schema-id: oldAmount: type: integer description: Previous quantity requested. examples: *ref_27 x-parser-schema-id: newAmount: type: integer description: New quantity requested. examples: *ref_28 x-parser-schema-id: x-parser-schema-id: examples: - event: buyorder_updated ts: 1782403724 data: id: 880421 itemId: 1536 oldPrice: 1525 newPrice: 1530 oldAmount: 5 newAmount: 3 x-parser-schema-id: BuyorderUpdated title: Buy order updated description: A buy order's price or amount changed. example: |- { "event": "buyorder_updated", "ts": 1782403724, "data": { "id": 880421, "itemId": 1536, "oldPrice": 1525, "newPrice": 1530, "oldAmount": 5, "newAmount": 3 } } bindings: [] extensions: - id: x-parser-unique-object-id value: buyorderUpdated - &ref_45 id: buyorderActivated contentType: application/json payload: - name: Buy order activated description: >- A buy order's amount went from negative to positive (became active). type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_29 - 1782403724 required: true - name: data type: object required: true properties: - name: id type: integer description: Buy order id. examples: &ref_30 - 880421 required: true - name: itemId type: integer description: Catalog item id. examples: &ref_31 - 1536 required: true - name: price type: integer description: Buy order price in integer cents. examples: &ref_32 - 1525 required: true - name: amount type: integer description: Quantity requested by the now-active buy order (positive). examples: &ref_33 - 5 required: true headers: [] jsonPayloadSchema: type: object description: >- Emitted when a buy order's amount transitions from negative to positive (it becomes active). required: - event - ts - data properties: event: type: string const: buyorder_activated description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_29 x-parser-schema-id: data: type: object required: - id - itemId - price - amount properties: id: type: integer description: Buy order id. examples: *ref_30 x-parser-schema-id: itemId: type: integer description: Catalog item id. examples: *ref_31 x-parser-schema-id: price: type: integer description: Buy order price in integer cents. examples: *ref_32 x-parser-schema-id: amount: type: integer description: Quantity requested by the now-active buy order (positive). examples: *ref_33 x-parser-schema-id: x-parser-schema-id: examples: - event: buyorder_activated ts: 1782403724 data: id: 880421 itemId: 1536 price: 1525 amount: 5 x-parser-schema-id: BuyorderActivated title: Buy order activated description: A buy order's amount went from negative to positive (became active). example: |- { "event": "buyorder_activated", "ts": 1782403724, "data": { "id": 880421, "itemId": 1536, "price": 1525, "amount": 5 } } bindings: [] extensions: - id: x-parser-unique-object-id value: buyorderActivated - &ref_46 id: buyorderDeactivated contentType: application/json payload: - name: Buy order deactivated description: >- A buy order's amount went from positive to negative (became inactive). type: object properties: - name: event type: string description: Event name. required: true - name: ts type: integer description: Unix timestamp (seconds) of the event. examples: &ref_34 - 1782403724 required: true - name: data type: object required: true properties: - name: id type: integer description: Buy order id. examples: &ref_35 - 880421 required: true - name: itemId type: integer description: Catalog item id. examples: &ref_36 - 1536 required: true - name: price type: integer description: Buy order price in integer cents. examples: &ref_37 - 1525 required: true headers: [] jsonPayloadSchema: type: object description: >- Emitted when a buy order's amount transitions from positive to negative (it becomes inactive). required: - event - ts - data properties: event: type: string const: buyorder_deactivated description: Event name. x-parser-schema-id: ts: type: integer description: Unix timestamp (seconds) of the event. examples: *ref_34 x-parser-schema-id: data: type: object required: - id - itemId - price properties: id: type: integer description: Buy order id. examples: *ref_35 x-parser-schema-id: itemId: type: integer description: Catalog item id. examples: *ref_36 x-parser-schema-id: price: type: integer description: Buy order price in integer cents. examples: *ref_37 x-parser-schema-id: x-parser-schema-id: examples: - event: buyorder_deactivated ts: 1782403724 data: id: 880421 itemId: 1536 price: 1525 x-parser-schema-id: BuyorderDeactivated title: Buy order deactivated description: A buy order's amount went from positive to negative (became inactive). example: |- { "event": "buyorder_deactivated", "ts": 1782403724, "data": { "id": 880421, "itemId": 1536, "price": 1525 } } bindings: [] extensions: - id: x-parser-unique-object-id value: buyorderDeactivated bindings: [] extensions: - id: x-parser-unique-object-id value: marketStream sendOperations: - *ref_38 receiveOperations: [] sendMessages: - *ref_39 - *ref_40 - *ref_41 - *ref_42 - *ref_43 - *ref_44 - *ref_45 - *ref_46 receiveMessages: [] extensions: - id: x-parser-unique-object-id value: marketStream securitySchemes: [] ````