> ## Documentation Index > Fetch the complete documentation index at: https://apidocs.sessionboard.com/llms.txt > Use this file to discover all available pages before exploring further. # Bulk contact operations > Create, update, or delete multiple contacts in a single request (max 100 operations). Requires the `write:contacts` scope. ## OpenAPI ````yaml /api-reference/openapi.yaml post /v1/event/{eventId}/contacts/bulk openapi: 3.1.0 info: title: Sessionboard Public API version: '1.0' description: >- REST API for managing sessions, speakers, contacts, sponsors, exhibitors, and event data on the Sessionboard platform. contact: name: Sessionboard Support email: support@sessionboard.com termsOfService: https://www.sessionboard.com/legal/terms-of-service servers: - url: https://public-api.sessionboard.com description: US Region - url: https://public-api-eu.sessionboard.com description: EU Region security: - ApiKey: [] - BearerToken: [] tags: - name: Events description: Manage events on the platform. - name: Sessions description: Search and retrieve sessions within an event. - name: Session Writes description: >- Create, update, delete, and restore sessions. Requires the `write:sessions` scope. - name: Contact Writes description: >- Create, update, delete, and restore contacts. Requires the `write:contacts` scope. - name: Exhibitor Writes description: >- Create, update, delete, and restore exhibitors. Requires the `write:exhibitors` scope. - name: Sponsor Writes description: >- Create, update, delete, and restore sponsors. Requires the `write:sponsors` scope. - name: Field Writes description: >- Create, update, and delete custom fields. Requires the `write:fields` scope. - name: Speakers description: Search and retrieve speakers within an event. - name: Contacts description: Search and retrieve contacts at the organization or event level. - name: Sponsors description: Search and retrieve sponsors within an event. - name: Exhibitors description: Search and retrieve exhibitors within an event. - name: Event Settings description: >- Retrieve event configuration such as fields, tags, tracks, rooms, formats, levels, languages, and session statuses. - name: GDPR description: Manage GDPR data access and erasure requests. - name: Insights description: >- Query event data using SbQL, generate queries with AI, and manage dashboards. - name: Metadata Writes description: >- Create, update, and delete session metadata (rooms, tracks, tags, formats, levels, languages, statuses). Requires the `write:metadata` scope. - name: Agenda Planning description: >- Manage agenda drafts, draft sessions, scheduling rules, and evaluation personas. Requires the `write:events` scope. - name: Dashboards & Widgets description: >- Create, read, update, and delete dashboards and widgets at the event or organization level. Requires `write:events` scope for writes. - name: Reports & Queries description: >- Create, read, update, delete, and run saved SbQL queries/reports at the event or organization level. Requires `write:events` scope for writes. - name: Transcriptions description: >- Transcript text on sessions — fragments, summaries, insights, and translations. Requires `read:transcriptions` / `write:transcriptions` scopes. - name: Session Recordings description: >- Session audio files for recording archives (live capture or imported audio). Requires `read:transcriptions` / `write:transcriptions` scopes. - name: Media description: >- Upload video or audio files for automatic transcription. Requires `read:media` / `write:media` scopes. - name: Session Files description: > Documents attached to sessions (PDFs, PowerPoint, Word, images, and similar). Simple upload: `POST .../files/upload` (multipart, max 50 MB). Direct-to-storage: create → PUT → complete (max 500 MB). Requires `read:sessions` / `write:sessions` scopes. See the [Uploading session files](/guides/uploading-session-files) guide. - name: OAuth description: >- OAuth 2.1 endpoints for AI client authorization (Claude, ChatGPT). Mounted at `/oauth/` (not `/v1/`). paths: /v1/event/{eventId}/contacts/bulk: post: tags: - Contact Writes summary: Bulk contact operations description: >- Create, update, or delete multiple contacts in a single request (max 100 operations). Requires the `write:contacts` scope. operationId: bulk-contacts parameters: - name: eventId in: path required: true schema: type: integer description: The event ID. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/BulkOperations' responses: '200': description: Bulk operation completed content: application/json: schema: $ref: '#/components/schemas/BulkResponse' '401': description: Unauthorized '403': description: Missing write:contacts scope '429': description: Rate limit or daily quota exceeded components: schemas: BulkOperations: type: object description: Request body for bulk create/update/delete operations. required: - operations properties: operations: type: array maxItems: 100 description: Array of operations to execute (max 100). items: type: object required: - action properties: action: type: string enum: - create - update - delete description: The operation to perform. id: type: string format: uuid description: Entity ID. Required for `update` and `delete` actions. data: type: object description: > Entity-specific fields. Required for `create` and `update` actions. Session create supports `is_abstract` (boolean, default false). `is_abstract` cannot be changed on update. BulkResponse: type: object description: Response body for bulk operations, including per-item results. properties: batch_id: type: string format: uuid description: Unique identifier for this bulk batch. results: type: array description: Per-operation results in the same order as the request. items: type: object properties: index: type: integer description: Zero-based index of the operation in the request array. action: type: string description: The action that was performed (create, update, delete). status: type: string enum: - success - error description: Whether this individual operation succeeded or failed. id: type: string format: uuid description: The ID of the created or affected entity. error: type: object description: Error details (only present when status is error). properties: code: type: string description: Machine-readable error code. message: type: string description: Human-readable error description. stats: type: object description: Summary statistics for the batch. properties: total: type: integer description: Total number of operations in the batch. succeeded: type: integer description: Number of operations that succeeded. failed: type: integer description: Number of operations that failed. securitySchemes: ApiKey: type: apiKey in: header name: x-access-token description: >- Organization API token. Generate from Organization Settings → API Tokens. BearerToken: type: http scheme: bearer description: >- OAuth 2.1 access token. Obtained via the OAuth PKCE flow at `/oauth/token`. ````