openapi: 3.1.0 info: title: Veeva Vault Authentication DirectData API version: '26.1' description: Minimal OpenAPI for the Veeva Vault Platform REST API covering authentication, session management, version discovery, VQL queries, MDL execution, metadata components, Direct Data files, and delegated sessions. x-generated-from: https://developer.veevavault.com/api/26.1/ x-generated-by: claude-crawl-2026-05-08 servers: - url: https://{vaultDNS}/api/{version} description: Vault REST API variables: vaultDNS: default: myvault.veevavault.com description: Customer Vault DNS hostname version: default: v26.1 description: API version security: - SessionId: [] tags: - name: DirectData paths: /services/directdata/files: get: tags: - DirectData summary: List Direct Data files available for download responses: '200': description: Direct Data file list content: application/json: schema: type: object /services/directdata/files/{name}: get: tags: - DirectData summary: Download a Direct Data file parameters: - name: name in: path required: true schema: type: string responses: '200': description: File payload content: application/octet-stream: schema: type: string format: binary components: securitySchemes: SessionId: type: apiKey in: header name: Authorization description: Vault Session ID returned by /auth, sent as the Authorization header.