> ## 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. # Wallet balance > Recibe cambios de balance de SOL de una wallet de Solana vía Datastream WebSocket para tracking en vivo, alertas y dashboards de portfolio. ## SDK Example ```typescript theme={null} import { Datastream } from '@solana-tracker/data-api'; const dataStream = new Datastream({ wsUrl: 'wss://datastream.solanatracker.io/YOUR_API_KEY', }); dataStream.on('error', console.error); await dataStream.connect(); const sub = dataStream.subscribe.wallet('FbMxP3GVq8TQ36nbYgx4NP9iygMpwAwFWJwW81ioCiSF').balance().on((data) => { console.log(data); }); // sub.unsubscribe(); ``` ## AsyncAPI ````yaml es/datastream/wallet.json walletBalance id: walletBalance title: Wallet balance description: Cambios de saldo de cualquier token servers: - id: production protocol: wss host: datastream.solanatracker.io bindings: [] variables: - id: apiKey description: Su clave API única de la suscripción a Data API defaultValue: YOUR_DATASTREAM_KEY allowedValues: [] examples: [] address: / parameters: [] bindings: [] operations: - &ref_2 id: subscribeToBalance title: Subscribe to balance description: Subscribe to wallet balance type: receive messages: - &ref_5 id: joinBalance payload: - name: joinBalance description: Subscribe to wallet balance changes type: object properties: - name: type type: string description: join required: true - name: room type: string description: Wallet balance room (wallet:{walletAddress}:balance) required: true headers: [] jsonPayloadSchema: type: object required: - type - room properties: type: type: string const: join default: join x-parser-schema-id: room: type: string pattern: ^wallet:[A-Za-z0-9]{32,44}:balance$ description: Wallet balance room (wallet:{walletAddress}:balance) default: wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance x-parser-schema-id: examples: - type: join room: wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance x-parser-schema-id: title: Join balance description: Subscribe to wallet balance changes example: |- { "type": "join", "room": "wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance" } bindings: [] extensions: - id: x-parser-unique-object-id value: joinBalance - id: x-parser-message-name value: joinBalance bindings: [] extensions: &ref_1 - id: x-codeSamples value: &ref_8 - lang: typescript label: SDK source: > import { Datastream } from '@solana-tracker/data-api'; const dataStream = new Datastream({ wsUrl: 'wss://datastream.solanatracker.io/YOUR_API_KEY', }); dataStream.on('error', console.error); await dataStream.connect(); const sub = dataStream.subscribe.wallet('FbMxP3GVq8TQ36nbYgx4NP9iygMpwAwFWJwW81ioCiSF').balance().on((data) => { console.log(data); }); // sub.unsubscribe(); - id: x-parser-unique-object-id value: walletBalance - &ref_4 id: receiveBalanceData title: Receive balance data description: Receive balance updates type: send messages: - &ref_7 id: balanceMessage payload: - name: balanceMessage description: Balance change notification type: object properties: - name: type type: string description: message required: false - name: room type: string required: false - name: data type: object examples: &ref_0 - wallet: FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1 token: Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB amount: 78816.844996 - wallet: FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1 token: So11111111111111111111111111111111111111112 amount: 1.2345 required: false properties: - name: wallet type: string description: Wallet public key that received the balance update required: true - name: token type: string description: >- Token mint address. Native SOL uses the wrapped SOL mint `So11111111111111111111111111111111111111112` (same identifier for SOL balance updates on these rooms). required: true - name: amount type: number description: >- UI token amount after the update (decimal human units, not raw integer base units / lamports). Example: `78816.844996` for a fractional SPL balance. Use this value for display and reconciliation against UI balances; convert with mint decimals if you need raw integer amounts. 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 required: - wallet - token - amount properties: wallet: type: string description: Wallet public key that received the balance update x-parser-schema-id: token: type: string description: >- Token mint address. Native SOL uses the wrapped SOL mint `So11111111111111111111111111111111111111112` (same identifier for SOL balance updates on these rooms). x-parser-schema-id: amount: type: number description: >- UI token amount after the update (decimal human units, not raw integer base units / lamports). Example: `78816.844996` for a fractional SPL balance. Use this value for display and reconciliation against UI balances; convert with mint decimals if you need raw integer amounts. x-parser-schema-id: examples: *ref_0 x-parser-schema-id: BalanceUpdate examples: - type: message data: wallet: FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1 token: Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB amount: 78816.844996 room: wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance x-parser-schema-id: title: Balance message description: Balance change notification example: |- { "type": "message", "data": { "wallet": "FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1", "token": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB", "amount": 78816.844996 }, "room": "wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance" } bindings: [] extensions: - id: x-parser-unique-object-id value: balanceMessage - id: x-parser-message-name value: balanceMessage bindings: [] extensions: *ref_1 - &ref_3 id: unsubscribeFromBalance title: Unsubscribe from balance description: Unsubscribe from balance type: receive messages: - &ref_6 id: leaveBalance payload: - name: leaveBalance description: Unsubscribe from balance updates 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: wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance x-parser-schema-id: examples: - type: leave room: wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance x-parser-schema-id: title: Leave balance description: Unsubscribe from balance updates example: |- { "type": "leave", "room": "wallet:FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1:balance" } bindings: [] extensions: - id: x-parser-unique-object-id value: leaveBalance - id: x-parser-message-name value: leaveBalance bindings: [] extensions: *ref_1 sendOperations: - *ref_2 - *ref_3 receiveOperations: - *ref_4 sendMessages: - *ref_5 - *ref_6 receiveMessages: - *ref_7 extensions: - id: x-codeSamples value: *ref_8 - id: x-parser-unique-object-id value: walletBalance 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: [] ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.