> ## Documentation Index > Fetch the complete documentation index at: https://docs.vocobase.com/llms.txt > Use this file to discover all available pages before exploring further. # List credit transactions > Transaction history, newest first. Amounts are in ₹; `usage` rows are negative. ## OpenAPI ````yaml /openapi.json get /billing/transactions openapi: 3.1.0 info: title: Vocobase API version: '2.0' description: >- API for managing voice AI agents, documents, and calls on the Vocobase platform. servers: - url: https://api.vocobase.com/api/v2 description: Production security: - bearerAuth: [] tags: - name: Config description: >- Read and update account configuration, webhook settings, and telephony credentials. - name: Agents description: Create, read, update, and delete voice AI agents. - name: Voices description: >- List voice tiers, available voices, and stream preview audio for agent configuration. - name: Documents description: Upload, manage, and delete knowledge base documents. - name: Agent Documents description: Link and unlink documents to agents for knowledge base integration. - name: Calls description: Initiate outbound calls and view call history. - name: Phone Numbers description: >- Import DIDs, assign agents for inbound routing, and re-sync carrier Application bindings. - name: Inbound Routing Policies description: >- Define pre-answer routing decisions for inbound calls before AI sessions are created. - name: Telephony Connections description: Create, list, rename, and disconnect named V2 telephony connections. - name: VoiceLink Management description: Manage VoiceLink reseller clients, DID mapping, and readiness sync. - name: Projects description: Organize agents into projects. Every agent belongs to exactly one project. - name: Dictionaries description: Speech-recognition dictionary CRUD and agent attachment. - name: Sessions description: Browser-initiated WebRTC voice sessions for in-app voice agents. - name: Campaigns description: Batch outbound calling. - name: Billing description: Balance, transactions, and usage summaries. - name: Custom Functions description: HTTP endpoints the agent can call mid-conversation. - name: Extraction Sets description: Reusable sets of post-call extraction fields. - name: Lifecycle Hooks description: Automatic pre-call and post-call integration steps. - name: Messaging description: Bring-your-own WhatsApp sending. - name: Integration Logs description: Audit trail for integration calls. - name: Connectors description: Catalog of tools an agent can be connected to. - name: Customers description: B2B2B sub-tenants and their tool connections. - name: Agent Tools description: Binding connectors and connections to an agent. paths: /billing/transactions: get: tags: - Billing summary: List credit transactions description: >- Transaction history, newest first. Amounts are in ₹; `usage` rows are negative. operationId: listTransactions parameters: - name: limit in: query required: false schema: type: integer default: 50 maximum: 100 description: Page size. Default 50, maximum 100. - name: offset in: query required: false schema: type: integer default: 0 description: Rows to skip. Default 0. - name: type in: query required: false schema: type: string enum: - PURCHASE - USAGE - REFUND - BONUS description: Filter by transaction type. - name: start_date in: query required: false schema: type: string format: date-time description: Only transactions at or after this ISO 8601 date. - name: end_date in: query required: false schema: type: string format: date-time description: Only transactions at or before this ISO 8601 date. responses: '200': description: Success. content: application/json: schema: type: object properties: success: type: boolean const: true data: type: object properties: transactions: type: array items: type: object properties: id: type: string format: uuid amount: type: number description: ₹. Negative for `usage`. type: type: string enum: - purchase - usage - refund - bonus description: type: string nullable: true metadata: type: object nullable: true additionalProperties: true description: >- Context for the row, e.g. the `session_id` a usage charge came from. created_at: type: string format: date-time total: type: integer limit: type: integer offset: type: integer example: success: true data: transactions: - id: tx_5f4e3d2c-1b0a-9876-5432-1fedcba09876 amount: -5.76 type: usage description: Voice session metadata: session_id: s2345678-abcd-1234-abcd-123456789012 created_at: '2026-08-20T09:36:28.000Z' - id: tx_6a5b4c3d-2e1f-0987-6543-2fedcba09877 amount: 25000 type: purchase description: Top-up metadata: null created_at: '2026-08-18T11:02:00.000Z' total: 2 limit: 50 offset: 0 '400': $ref: '#/components/responses/ValidationError' '401': $ref: '#/components/responses/Unauthorized' '429': $ref: '#/components/responses/RateLimitExceeded' '500': $ref: '#/components/responses/InternalError' components: responses: ValidationError: description: Validation error in request body or parameters. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: success: false error: code: VALIDATION_ERROR message: agent_name is required and must be max 50 characters Unauthorized: description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: success: false error: code: UNAUTHORIZED message: Invalid or missing API key RateLimitExceeded: description: Per-account rate limit exceeded. Retry after a short backoff. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: success: false error: code: RATE_LIMITED message: Rate limit exceeded. Retry after 60 seconds. InternalError: description: Unexpected server error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: success: false error: code: INTERNAL_ERROR message: An unexpected error occurred schemas: ErrorResponse: type: object properties: success: type: boolean const: false error: type: object properties: code: type: string message: type: string required: - code - message required: - success - error securitySchemes: bearerAuth: type: http scheme: bearer description: >- API key in format: `rg_live_xxxx`. Pass as a Bearer token in the Authorization header. ````