> ## Documentation Index > Fetch the complete documentation index at: https://ramps-docs-sync-20260321.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Internal account status webhook > Webhook that is called when the status of an internal account changes. This includes balance updates and may include additional account events in the future. This endpoint should be implemented by clients of the Grid API. ### Authentication The webhook includes a signature in the `X-Grid-Signature` header that allows you to verify that the webhook was sent by Grid. To verify the signature: 1. Get the Grid public key provided to you during integration 2. Decode the base64 signature from the header 3. Create a SHA-256 hash of the request body 4. Verify the signature using the public key and the hash If the signature verification succeeds, the webhook is authentic. If not, it should be rejected. ### Event types - `INTERNAL_ACCOUNT.BALANCE_UPDATED` — Fired when the balance of an internal account changes. The `data` payload contains the full internal account object. ## OpenAPI ````yaml https://app.stainless.com/api/spec/documented/grid/openapi.documented.yml webhook internal-account-status openapi: 3.1.0 info: title: Grid API description: > API for managing global payments on the open Money Grid. Built by Lightspark. See the full documentation at https://grid.lightspark.com/. version: '2025-10-13' contact: name: Lightspark Support email: support@lightspark.com license: name: Proprietary url: https://lightspark.com/terms servers: - url: https://api.lightspark.com/grid/2025-10-13 description: Production server security: - BasicAuth: [] tags: - name: Platform Configuration description: >- Platform configuration endpoints for managing global settings. You can also configure these settings in the Grid dashboard. - name: Customers description: >- Customer management endpoints for creating and updating customer information - name: KYC/KYB Verifications description: >- Endpoints for Know Your Customer (KYC) and Know Your Business (KYB) verification, including managing beneficial owners and triggering verification for customers. - name: Documents description: >- Endpoints for uploading and managing verification documents for customers and beneficial owners. Supports KYC and KYB document requirements. - name: Internal Accounts description: >- Internal account management endpoints for creating and managing internal accounts - name: External Accounts description: >- External account management endpoints for creating and managing external bank accounts - name: Same-Currency Transfers description: >- Endpoints for transferring funds between internal and external accounts with the same currency - name: Cross-Currency Transfers description: Endpoints for creating and confirming quotes for cross-currency transfers - name: Transactions description: Endpoints for retrieving transaction information - name: Webhooks description: Webhook endpoints and configuration for receiving notifications - name: Invitations description: Endpoints for creating, claiming and managing UMA invitations - name: Sandbox description: Endpoints to trigger test cases in sandbox - name: API Tokens description: Endpoints to programmatically manage API tokens - name: Exchange Rates description: >- Endpoints for retrieving cached foreign exchange rates. Rates are cached for approximately 5 minutes and include platform-specific fees. - name: Discoveries description: >- Endpoints for discovering available payment rails, banks, and providers for a given country and currency corridor. paths: {} components: securitySchemes: BasicAuth: type: http scheme: basic description: >- API token authentication using format `:` ````