CapLinked is secure virtual data room (VDR) software used by M&A teams, private equity, venture capital, legal, and corporate development to share sensitive documents, manage permissions, run Q&A during diligence, and maintain audit trails. An unofficial API lets you programmatically

CapLinked is a cloud platform for secure document sharing and collaboration across financial transactions and corporate projects. Teams use CapLinked to set up private data rooms, upload and protect files with DRM and watermarks, manage users and groups with granular permissions, run structured Q&A for diligence, and track all activity via audit logs.
Core product areas include:
Common data entities:
Deal teams rely on CapLinked daily, but turning portal-centric workflows into API-driven automation is non-trivial:
Supergood reverse-engineers authenticated browser flows and network interactions to deliver a resilient API endpoint layer for your CapLinked tenant.
Book a 30-minute session to confirm your modules, licensing, and authentication model.
We deliver a hardened CapLinked adapter tailored to your workflows and entitlements.
Go live with continuous monitoring and automatic adjustments as CapLinked evolves.
Authentication
/sessionsEstablish a session using credentials. Supergood manages MFA (SMS, email, TOTP) and SSO/OAuth when enabled. Returns a short-lived auth token maintained by the platform.
Authentication
/sessions/refreshRefresh an existing token to keep sessions uninterrupted.
Workspaces
/workspacesList data rooms with filters and summary details.
Documents
/workspaces/{workspaceId}/documentsUpload a document with DRM and watermark settings.
Participants & Permissions
/workspaces/{workspaceId}/participants/{participantId}Update participant role, group membership, and folder-level permissions.
Q&A Threads
/workspaces/{workspaceId}/qa/questionsCreate a diligence question with confidentiality controls and assignments.
- Mirror workspaces, folders, and participant rosters into your internal systems - Keep workspace metadata current for analytics, pipeline tracking, and reporting - Normalize roles, groups, and access windows across multi-tenant operations
- Upload files with consistent watermark/DRM policies and expiration dates - Generate time-bound viewing permissions aligned to NDA status - Sync document versions and tags with ECM/DMS platforms
- Create questions, assign to responder teams, and track statuses from your product - Push answers and attachments while respecting confidentiality rings - Trigger SLA alerts and route escalations to deal coordinators
- Export activity logs for audits and regulatory filings - Detect anomalous download patterns and enforce stricter controls - Reconcile NDA acceptance and access changes across stakeholders
Authentication
Username/password with MFA (SMS, email, TOTP) and SSO/OAuth where enabled; supports service accounts or customer-managed credentials
Response format
JSON with consistent resource schemas and pagination across modules
Rate limits
Tuned for enterprise throughput while honoring customer entitlements and usage controls
Session management
Automatic reauth and cookie/session rotation with health checks
Data freshness
Near real-time retrieval of workspaces, documents, participants, Q&A, and activity logs
Security
Encrypted transport, scoped tokens, and audit logging; respects CapLinked role-based permissions and confidentiality groups
Webhooks
Optional asynchronous delivery for long-running workflows (e.g., document processing, Q&A answers)
Latency
Sub-second responses for list/detail queries under normal load; uploads reflect antivirus/DRM processing states
Throughput
Designed for high-volume document syncs and participant updates across multiple workspaces
Reliability
Retry logic, backoff, and idempotency keys minimize duplicate actions; chunked upload support for large files
Adaptation
Continuous monitoring for UI/API changes with rapid adapter updates
Supergood supports workflows across commonly used modules such as Data Rooms (Workspaces, Folders, Documents), Permissions (Participants, Groups, Confidentiality Rings), Diligence Q&A (Questions, Answers), and Activity/Audit Logs, subject to your licensing and entitlements. We scope coverage during integration assessment.
We support username/password + MFA (SMS, email, TOTP) and can operate behind SSO/OAuth when enabled. Sessions are refreshed automatically with secure challenge handling.
Yes. We can apply document-level DRM and watermarks, generate time-limited access windows, and respect download restrictions. Policies are modeled explicitly in our normalized responses and write operations.
Yes. We can normalize and deliver audit trails (views/downloads, IP/device), plus Q&A threads and answers, via polling or webhooks while complying with permission constraints. Bulk exports are supported with pagination and filters.