> ## Documentation Index > Fetch the complete documentation index at: https://docs.watchdog.no/llms.txt > Use this file to discover all available pages before exploring further. # Start a Slack notification connection > Choose owner personal or organization. Sessions and personal API keys receive a setup link for the existing settings screen. Organization connections require Admin. The initiating user opens the link while signed in to the selected organization. The browser calls this endpoint with the setup token and a fresh browser_nonce to receive the Slack consent URL. Browser consent requires a Clerk session. Links expire after ten minutes; connecting never selects new events. ## OpenAPI ````yaml /openapi-preview.json post /v1/notifications/channels/slack/authorize openapi: 3.1.0 info: title: Watchdog API (preview) version: 1.0.0 description: >- Development preview for agreements, price items, document relationships, canonical invoices, alerts and alert topics, claims and attached alerts, shared entity activity and comments, Document uploads, invoice imports, explicit invoice-agreement matching, and workflow runs. This contract is under development and is not served by api.watchdog.no. Request bodies are limited to 2 MiB (2,097,152 bytes), including all JSON fields and line data, except POST /v1/support/contact which permits 32 MiB for base64 attachments. File bytes are uploaded directly to storage. The existing public REST service retains its separate contract. servers: - url: http://localhost:3500 description: Local development Worker security: [] paths: /v1/notifications/channels/slack/authorize: post: tags: - Notifications summary: Start a Slack notification connection description: >- Choose owner personal or organization. Sessions and personal API keys receive a setup link for the existing settings screen. Organization connections require Admin. The initiating user opens the link while signed in to the selected organization. The browser calls this endpoint with the setup token and a fresh browser_nonce to receive the Slack consent URL. Browser consent requires a Clerk session. Links expire after ten minutes; connecting never selects new events. operationId: authorizeNotificationSlack parameters: - name: X-Organization-Id in: header required: false schema: type: string description: >- Required for personal API keys. Target one organization you have access to. Migrated keys may omit it to use their original organization. For Clerk sessions, it must match the active organization. requestBody: required: true content: application/json: schema: type: object properties: owner: type: string enum: - personal - organization setup_token: type: string minLength: 1 maxLength: 4096 description: Setup token from the agent-created link; browser use only. browser_nonce: type: string pattern: ^[a-f0-9]{64}$ description: >- Random 32-byte hex nonce retained in browser session storage. Requires a Clerk session. required: - owner additionalProperties: false anyOf: - not: required: - setup_token - required: - browser_nonce responses: '200': description: Browser authorization URL and expiry. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: type: object properties: expires_at: type: string format: date-time url: type: string format: uri required: - expires_at - url '400': description: >- Invalid request format, parameters, or body. Details contain up to 20 actionable field errors; the complete encoded request body must be at most 2 MiB (2,097,152 bytes). headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: '#/components/schemas/Error_validation_error' example: error: code: validation_error message: >- Invalid request format, parameters, or body. Details contain up to 20 actionable field errors; the complete encoded request body must be at most 2 MiB (2,097,152 bytes). request_id: req_example '401': description: Missing or invalid bearer credential. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. WWW-Authenticate: schema: type: string required: false description: Bearer authentication challenge, when supplied. content: application/json: schema: $ref: '#/components/schemas/Error_invalid_token' example: error: code: invalid_token message: Missing or invalid bearer credential. request_id: req_example '403': description: >- Access denied: forbidden, token_disabled, organization_required, insufficient_role, or mfa_required. Check the error code and effective permissions. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: >- #/components/schemas/Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required example: error: code: forbidden message: >- Access denied: forbidden, token_disabled, organization_required, insufficient_role, or mfa_required. Check the error code and effective permissions. request_id: req_example '429': description: The IP or authenticated credential exceeded its request limit. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. Retry-After: schema: type: string example: '60' required: true description: Seconds to wait before retrying the request. content: application/json: schema: $ref: '#/components/schemas/Error_rate_limit_exceeded' example: error: code: rate_limit_exceeded message: >- The IP or authenticated credential exceeded its request limit. request_id: req_example '500': description: >- Unexpected server failure. Include the request ID when contacting support. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. content: application/json: schema: $ref: '#/components/schemas/Error_internal_error' example: error: code: internal_error message: >- Unexpected server failure. Include the request ID when contacting support. request_id: req_example '503': description: >- Authentication infrastructure is unavailable or rate limited. Honor Retry-After when provided. headers: X-Request-Id: schema: type: string required: true description: >- Request identifier for support and diagnostics; also included in error bodies. Cache-Control: schema: type: string enum: - private, no-store required: false description: >- Organization-scoped API responses must not be cached. May be absent for requests rejected before routing. X-RateLimit-Limit: schema: type: string example: '120' required: false description: >- Requests per minute for the applicable limiter, when evaluated. Authenticated requests use the credential limit; an IP rejection uses the IP limit. Retry-After: schema: type: string example: '60' required: true description: Seconds to wait before retrying the request. content: application/json: schema: $ref: '#/components/schemas/Error_service_unavailable' example: error: code: service_unavailable message: >- Authentication infrastructure is unavailable or rate limited. Honor Retry-After when provided. request_id: req_example security: - ApiKeyBearer: [] - ClerkSessionBearer: [] components: schemas: Error_validation_error: type: object properties: error: type: object properties: code: type: string enum: - validation_error message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_invalid_token: type: object properties: error: type: object properties: code: type: string enum: - invalid_token message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required: type: object properties: error: type: object properties: code: type: string enum: - forbidden - token_disabled - organization_required - insufficient_role - mfa_required message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_rate_limit_exceeded: type: object properties: error: type: object properties: code: type: string enum: - rate_limit_exceeded message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_internal_error: type: object properties: error: type: object properties: code: type: string enum: - internal_error message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_service_unavailable: type: object properties: error: type: object properties: code: type: string enum: - service_unavailable message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error securitySchemes: ApiKeyBearer: type: http scheme: bearer description: >- Personal API key. Send X-Organization-Id. The required cumulative level is listed in x-watchdog-permission. ClerkSessionBearer: type: http scheme: bearer description: Clerk session with an active organization. ````