> ## Documentation Index > Fetch the complete documentation index at: https://docs.interchange.io/llms.txt > Use this file to discover all available pages before exploring further. # Update billing information (admin) > Update the billing information Scope3 issues invoices to. At minimum, a payer name and billing address are needed to issue an invoice. Admin-only. ## OpenAPI ````yaml /v2/buyer-api-v2.yaml put /billing/info openapi: 3.0.0 info: title: Scope3 Buyer API version: 2.0.0 description: |- REST API for advertisers to manage advertisers, campaigns, and reporting. ## Authentication All endpoints require a Bearer token in the Authorization header: ``` Authorization: Bearer your-api-key ``` ## Base URL `https://api.interchange.io/api/v2/buyer` ## For AI Agents AI agents can use the MCP endpoint at `/mcp/v2/buyer` with three tools: - `initialize`: Start an MCP session - `api_call`: Make REST API calls - `ask_about_capability`: Learn about API features servers: - url: https://api.interchange.io/api/v2/buyer description: Production server security: [] tags: - name: Account description: Account management, service tokens, and preferences - name: Advertisers description: Manage advertisers - name: Product Discovery description: Discover and select products - name: Campaigns description: Manage advertising campaigns - name: Creatives description: Build, manage, and sync campaign creatives via AdCP Creative Protocol - name: Reporting description: Access performance metrics - name: Event Sources description: >- Manage event source configurations and log conversion/marketing events for attribution - name: Property Lists description: Validate property lists against AAO registry - name: Sales Agents description: View and connect sales agents - name: Measurement description: Measurement sources, records, context, and freshness - name: Syndication description: Syndicate resources to ADCP agents - name: Tasks description: Track async operation status - name: Planning Briefs description: >- Share prospective briefs with publishers and collect their fit/quote/clarify/decline/book responses (gated by the demand-supply-signals flag). - name: Buyer Billing description: >- Consolidated invoicing for buyers — invoices and pending invoice items issued by Scope3 across the buyer customer. - name: MCP description: Model Context Protocol endpoints for AI agents paths: /billing/info: put: tags: - Buyer Billing summary: Update billing information (admin) description: >- Update the billing information Scope3 issues invoices to. At minimum, a payer name and billing address are needed to issue an invoice. Admin-only. operationId: updateBillingInfo requestBody: required: true content: application/json: schema: type: object properties: contactName: description: Billing contact / payer name nullable: true type: string minLength: 1 maxLength: 255 email: description: Email addresses invoices are sent to nullable: true maxItems: 10 type: array items: type: string format: email pattern: >- ^(?!\.)(?!.*\.\.)([A-Za-z0-9_'+\-\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\-]*\.)+[A-Za-z]{2,}$ ccEmails: description: Email addresses CC’d on invoices nullable: true maxItems: 10 type: array items: type: string format: email pattern: >- ^(?!\.)(?!.*\.\.)([A-Za-z0-9_'+\-\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\-]*\.)+[A-Za-z]{2,}$ phone: description: Billing phone number nullable: true type: string maxLength: 64 address: description: Billing street address, line 1 nullable: true type: string maxLength: 255 address2: description: Billing street address, line 2 nullable: true type: string maxLength: 255 city: description: Billing city nullable: true type: string maxLength: 128 region: description: Billing state/province/region nullable: true type: string maxLength: 128 postalCode: description: Billing postal/ZIP code nullable: true type: string maxLength: 32 countryAlpha2: description: Billing country (ISO 3166-1 alpha-2) example: US nullable: true type: string pattern: ^[A-Z]{2}$ taxId: description: Tax/VAT identifier shown on invoices nullable: true type: string maxLength: 64 responses: '200': description: Update billing information (admin) content: application/json: schema: $ref: '#/components/schemas/UpdateBillingInfoResponse' '400': description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - bearerAuth: [] components: schemas: UpdateBillingInfoResponse: type: object properties: billingInfo: $ref: '#/components/schemas/BuyerBillingInfo' required: - billingInfo additionalProperties: false ErrorResponse: description: Standard error response type: object properties: data: type: string nullable: true enum: - null error: $ref: '#/components/schemas/ApiError' required: - data - error additionalProperties: false BuyerBillingInfo: description: >- Billing (payer) information for the authenticated customer, used on manually issued invoices. type: object properties: contactName: description: Billing contact / payer name nullable: true type: string email: description: Email addresses invoices are sent to type: array items: type: string ccEmails: description: Email addresses CC’d on invoices type: array items: type: string phone: description: Billing phone number nullable: true type: string address: description: Billing street address, line 1 nullable: true type: string address2: description: Billing street address, line 2 nullable: true type: string city: description: Billing city nullable: true type: string region: description: Billing state/province/region nullable: true type: string postalCode: description: Billing postal/ZIP code nullable: true type: string countryAlpha2: description: Billing country (ISO 3166-1 alpha-2) nullable: true type: string taxId: description: Tax/VAT identifier shown on invoices nullable: true type: string required: - contactName - email - ccEmails - phone - address - address2 - city - region - postalCode - countryAlpha2 - taxId additionalProperties: false ApiError: description: Structured error object type: object properties: code: description: Machine-readable error code type: string message: description: Human-readable error message type: string field: description: Field path associated with the error type: string details: description: Additional error context type: object additionalProperties: {} required: - code - message additionalProperties: false securitySchemes: bearerAuth: type: http scheme: bearer description: API key or access token ````