> ## Documentation Index > Fetch the complete documentation index at: https://docs.solanatracker.io/llms.txt > Use this file to discover all available pages before exploring further. # Category feed > Trades (and other non-state events) when the payload includes category/categorySlug (enriched feeds). ## AsyncAPI ````yaml datastream/pm-filters.json categoryFeed id: categoryFeed title: Category feed description: >- Trades (and other non-state events) when the payload includes category/categorySlug (enriched feeds). servers: - id: production protocol: wss host: datastream.solanatracker.io bindings: [] variables: - id: apiKey description: Your unique API key from Data API subscription defaultValue: YOUR_DATASTREAM_KEY allowedValues: [] examples: [] address: / parameters: [] bindings: [] operations: - &ref_1 id: subscribeCategoryFeed title: Subscribe category feed description: Subscribe by market category type: receive messages: - &ref_4 id: joinCategoryFeed payload: - name: joinCategoryFeed description: Subscribe by market category type: object properties: - name: type type: string description: join required: true - name: room type: string description: 'Room pattern: `pm:category:{category}`' required: true headers: [] jsonPayloadSchema: type: object required: - type - room properties: type: type: string const: join default: join x-parser-schema-id: room: type: string description: 'Room pattern: `pm:category:{category}`' default: pm:category:crypto x-parser-schema-id: examples: - type: join room: pm:category:crypto x-parser-schema-id: title: Join category feed description: Subscribe by market category example: |- { "type": "join", "room": "pm:category:crypto" } bindings: [] extensions: - id: x-parser-unique-object-id value: joinCategoryFeed - id: x-parser-message-name value: joinCategoryFeed bindings: [] extensions: &ref_0 - id: x-displayName value: Category Feed - id: x-parser-unique-object-id value: categoryFeed - &ref_3 id: receiveCategoryFeedMessage title: Receive category feed message description: Receive Category Feed updates type: send messages: - &ref_6 id: categoryFeedMessage payload: - name: categoryFeedMessage description: Category Feed update type: object properties: - name: type type: string description: message required: false - name: room type: string required: false - name: data type: object description: >- Flat room data. Envelope fields plus event-specific fields (trade/price/orderbook/…) at the top level. required: false properties: - name: type type: string description: >- Event kind (trade, price, orderbook_snapshot, quote, crypto_price, …) required: true - name: channel type: string enumValues: - prices - trades - orderbook - quotes - volume - market_lifecycle - resolution required: true - name: exchange type: string enumValues: - kalshi - polymarket required: true - name: marketId type: string required: true - name: eventId type: string required: false - name: seriesId type: string required: false - name: category type: string required: false - name: sport type: string required: false - name: sourceId type: string description: Exchange/source idempotency key (omit when empty) required: false - name: timestamp type: integer description: Unix epoch milliseconds required: true headers: [] jsonPayloadSchema: type: object properties: type: type: string const: message x-parser-schema-id: room: type: string x-parser-schema-id: data: type: object description: >- Flat room data. Envelope fields plus event-specific fields (trade/price/orderbook/…) at the top level. additionalProperties: true required: - type - channel - exchange - marketId - timestamp properties: type: type: string description: >- Event kind (trade, price, orderbook_snapshot, quote, crypto_price, …) x-parser-schema-id: channel: type: string enum: - prices - trades - orderbook - quotes - volume - market_lifecycle - resolution x-parser-schema-id: exchange: type: string enum: - kalshi - polymarket x-parser-schema-id: marketId: type: string x-parser-schema-id: eventId: type: string x-parser-schema-id: seriesId: type: string x-parser-schema-id: category: type: string x-parser-schema-id: sport: type: string x-parser-schema-id: sourceId: type: string description: Exchange/source idempotency key (omit when empty) x-parser-schema-id: timestamp: type: integer description: Unix epoch milliseconds x-parser-schema-id: x-parser-schema-id: RealtimeData examples: - type: message room: pm:category:crypto data: type: trade channel: trades exchange: polymarket marketId: '1234567890' timestamp: 1785347120123 x-parser-schema-id: title: Category feed message description: Category Feed update example: |- { "type": "message", "room": "pm:category:crypto", "data": { "type": "trade", "channel": "trades", "exchange": "polymarket", "marketId": "1234567890", "timestamp": 1785347120123 } } bindings: [] extensions: - id: x-parser-unique-object-id value: categoryFeedMessage - id: x-parser-message-name value: categoryFeedMessage bindings: [] extensions: *ref_0 - &ref_2 id: unsubscribeCategoryFeed title: Unsubscribe category feed description: Unsubscribe from Category Feed type: receive messages: - &ref_5 id: leaveCategoryFeed payload: - name: leaveCategoryFeed description: Unsubscribe from Category Feed type: object properties: - name: type type: string description: leave required: true - name: room type: string required: true headers: [] jsonPayloadSchema: type: object required: - type - room properties: type: type: string const: leave default: leave x-parser-schema-id: room: type: string default: pm:category:crypto x-parser-schema-id: examples: - type: leave room: pm:category:crypto x-parser-schema-id: title: Leave category feed description: Unsubscribe from Category Feed example: |- { "type": "leave", "room": "pm:category:crypto" } bindings: [] extensions: - id: x-parser-unique-object-id value: leaveCategoryFeed - id: x-parser-message-name value: leaveCategoryFeed bindings: [] extensions: *ref_0 sendOperations: - *ref_1 - *ref_2 receiveOperations: - *ref_3 sendMessages: - *ref_4 - *ref_5 receiveMessages: - *ref_6 extensions: - id: x-displayName value: Category Feed - id: x-parser-unique-object-id value: categoryFeed securitySchemes: - id: apiKeyAuth name: apiKey type: httpApiKey description: >- API key for authentication. Include your Datastream key in the connection URL: wss://datastream.solanatracker.io/{DATASTREAM_KEY} in: header extensions: [] ````