Inferensys

Integration

AI Integration with DISCO's Review Platform API

A technical guide for connecting custom AI models and LLMs to DISCO's review platform via its REST API to automate tagging, enhance search, and generate custom insights for legal review workflows.
ML engineer developing custom LLM, model architecture diagrams on screens, technical deep work environment.
ARCHITECTURE BLUEPRINT

Where AI Connects to DISCO's Review Workflows

A technical guide to wiring AI into DISCO's processing engine and review platform via its API for document intelligence and workflow automation.

DISCO's API provides three primary integration surfaces for AI agents: the Processing Engine, the Review Platform, and its Custom Objects layer. The Processing Engine API allows for pre-ingestion enrichment—injecting AI for advanced OCR, language detection, or entity extraction before documents hit the review database. The core Review Platform API enables real-time or batch operations against the Documents and Tags endpoints, letting AI agents analyze content, apply smart tags (like Privileged, Responsive, Hot), or populate custom fields with extracted clauses, sentiments, or key dates. Finally, DISCO's support for Custom Objects allows you to build AI-generated artifacts—such as custodian profiles, case chronologies, or privilege logs—that live alongside the native document corpus.

A production implementation typically follows an event-driven pattern: a webhook from DISCO signals a new document batch or a completed review stage, triggering an AI agent via a secure queue. The agent calls DISCO's API to fetch document text and metadata, processes it through an LLM or custom model (e.g., for privilege detection or contract analysis), and posts results back as tags or notes. For example, an AI workflow for early case assessment might cluster documents by concept using DISCO's Folders or Saved Searches API, then summarize each cluster into a custom object for attorney review. Governance is managed through DISCO's native audit trails (all API modifications are logged) and by implementing agent-specific API keys with scoped permissions to ensure actions are traceable and least-privilege.

Rollout should be phased, starting with a single, high-value workflow like automated privilege screening in a controlled matter. This allows validation of AI accuracy against human review, tuning of prompts or models using DISCO's tagged data as ground truth, and integration with existing Quality Control workflows. The goal is not to replace reviewers but to augment DISCO's native tools—turning a manual, linear review into a prioritized, intelligence-driven process where the platform surfaces the most critical documents first, based on AI-generated signals.

ARCHITECTURAL REFERENCE

Key DISCO API Surfaces for AI Integration

Core Data Access for AI

The Documents and Search API surfaces are the primary entry point for AI to analyze case content. Use the /documents and /search endpoints to retrieve documents, metadata, and extracted text in bulk for batch AI processing, or to power real-time, on-demand analysis during review.

Key integration patterns include:

  • Batch Enrichment: Pull large document sets (filtered by criteria like custodian or date) to run through external AI models for classification, summarization, or entity extraction. Write results back as custom fields via the API.
  • Search-Augmented Agents: Use the Search API's boolean and fielded search capabilities to retrieve a dynamic, contextually relevant document set for an AI agent to analyze before answering a specific legal question.
  • Real-time Tagging: Subscribe to webhooks for new document ingestion, triggering immediate AI analysis (e.g., PII detection, privilege scoring) and applying tags or custom fields as documents enter the review workspace.

This layer ensures AI models operate on the platform's canonical data, maintaining sync with the review state.

API-DRIVEN INTEGRATION PATTERNS

High-Value AI Use Cases for DISCO

Connect custom AI models and LLMs directly into DISCO's review workflows via its REST API and processing engine. These patterns extend native analytics, automate tagging, and generate insights without replacing the core platform.

01

Smart Tag Automation via API

Deploy AI models that analyze document content and metadata, then automatically apply DISCO tags via POST /api/v2/tags. Use for privilege detection, issue coding, or PII/PHI flagging. Workflow: Ingest → AI Processing → API Call → Tag Applied → Reviewer Queue.

Batch → Real-time
Tagging cadence
02

Concept Search & Semantic Clustering

Augment DISCO's keyword search by integrating a vector database (Pinecone, Weaviate) via middleware. Surface conceptually related documents beyond term matching. Integration: Query DISCO's search API, enrich with semantic search, return enhanced results to the review interface or a custom dashboard.

1 sprint
Initial integration
03

Deposition Transcript Q&A Agent

Build an LLM-powered agent that answers natural language questions about loaded deposition transcripts. Architecture: Sync transcript load files to an external RAG pipeline. Expose a chat interface within a DISCO iFrame or separate app, authenticated via DISCO's OAuth. Agents can cite specific lines and pages.

Hours -> Minutes
Research speed
04

Early Case Assessment Summarization

Automate initial data set analysis for scope and risk forecasting. Pattern: Trigger an AI workflow via webhook on matter creation or data completion. The agent summarizes custodian communications, clusters key themes, and pushes a summary report into DISCO as a note or linked document via POST /api/v2/files.

Same day
Initial analysis
05

Production Set QC Automation

Implement AI agents that validate production sets before final export. Workflow: Agent reviews the proposed production via DISCO's document export API, checking for family integrity, inconsistent redactions, and potential privilege leaks. Flags issues in a custom dashboard or via DISCO's alert system.

Reduce manual QC
Primary benefit
06

Custom Dashboard for AI Insights

Create executive-facing dashboards that visualize AI-generated metrics. Integration: Use DISCO's API to pull document counts, tag distributions, and review progress. Enrich with AI-calculated metrics (e.g., risk score, privilege density). Serve via a separate app using DISCO for authentication, or embed visuals using DISCO's custom object and widget capabilities.

Centralized view
Operational value
IMPLEMENTATION PATTERNS

Example AI-Augmented Workflows in DISCO

These workflows illustrate how to connect AI agents and models to DISCO's Review Platform API to automate high-value, time-consuming tasks. Each pattern includes the trigger, data flow, AI action, and system update.

Trigger: A batch of documents is ingested into a DISCO case or a reviewer saves a batch to a specific folder.

Context/Data Pulled: An agent monitors the DISCO API for new documents in a designated queue_for_ai_tagging folder. It fetches document metadata (Control Number, File Type) and text content via the /documents/{id}/text endpoint.

Model or Agent Action: A configured LLM (e.g., GPT-4, Claude 3) analyzes the text against a predefined taxonomy (e.g., Privileged, Responsive, Hot, Issue: Contract Breach). The agent uses a system prompt with legal definitions and examples.

System Update: The agent uses the DISCO API's PATCH /documents/{id}/fields endpoint to write the predicted tags to custom fields (e.g., AI_Privilege_Indicator, AI_Issue_Codes). It can also add the document to a DISCO Saved Search or Tag for reviewer follow-up.

Human Review Point: Tags marked with AI_Confidence < 0.85 are automatically added to a "Needs Validation" queue. The workflow can be configured to only auto-apply tags above a high-confidence threshold.

CONNECTING AI TO DISCO'S REVIEW WORKFLOWS

Typical Implementation Architecture

A production-ready integration connects AI models to DISCO's API layer, enriching documents with tags and insights that flow directly into the review interface.

A robust integration is built on DISCO's REST API, which provides programmatic access to cases, documents, tags, and search results. The core pattern involves an external AI service—hosted in your cloud or ours—that acts as a processing engine. This service listens for webhooks or polls a queue for new documents uploaded to a designated DISCO case or folder. When a batch of documents is ready, the service fetches the native files and/or extracted text via the API, processes them through an LLM or custom model (e.g., for issue spotting, summarization, or PII detection), and then writes the results back to DISCO as custom tags, fields, or annotations. This keeps all AI-generated metadata within the DISCO data model, making it instantly available for filtering, reporting, and reviewer guidance.

For real-time workflows, such as a reviewer requesting an on-demand summary, the architecture uses DISCO's API in a request/response pattern. A custom button or panel in the review interface (built using DISCO's UI extensibility) calls a secure backend endpoint. This endpoint retrieves the current document's content from DISCO, calls the AI model, and returns the generated insight—like a deposition summary or a list of key topics—directly to the reviewer's screen within seconds. This pattern is ideal for assisted review without altering the underlying document database until a reviewer chooses to save a tag.

Governance and rollout require careful planning. We typically implement a phased approach, starting with a single case or a specific data type (e.g., email threads). All AI-generated tags are prefixed (e.g., AI_ISSUE) and assigned to a dedicated service account for clear audit trails. Performance is monitored via DISCO's audit logs and custom dashboards that track processing volume, tag accuracy samples, and reviewer adoption. The final architecture ensures AI acts as a co-pilot within the existing DISCO workflow, augmenting—not replacing—the legal team's expertise and control.

DISCO REVIEW PLATFORM API

API and Code Integration Patterns

Automating Tag Application with AI

Integrate AI to analyze document content and metadata, then apply tags or populate custom fields via the DISCO API. This automates classification for privilege, responsiveness, issue codes, or custom legal concepts.

Key API Endpoints:

  • POST /api/v1/documents/{id}/tags to apply tags.
  • PATCH /api/v1/documents/{id}/fields to update custom field values.

Typical Workflow:

  1. Poll or use webhooks for new documents added to a review set.
  2. Fetch document text via the API (GET /api/v1/documents/{id}/text).
  3. Send text to your AI service for analysis (e.g., for privilege indicators).
  4. Use the analysis result to construct and send a tag application request back to DISCO.

This pattern turns batch review tasks into continuous, automated workflows, ensuring consistent tagging from the first document to the millionth.

AI-ENHANCED REVIEW WORKFLOWS

Realistic Time Savings and Operational Impact

This table illustrates the measurable impact of integrating AI agents with DISCO's Review Platform API, focusing on specific review tasks where automation provides the highest leverage without removing essential human judgment.

Review TaskBefore AI IntegrationAfter AI IntegrationImplementation Notes

Initial Document Triage & Tagging

Manual reviewer applies first-pass issue codes

AI pre-tags documents with predicted codes for reviewer confirmation

Uses DISCO's batch tagging API; human reviewer validates/overrides

Privilege Log Draft Generation

Manual extraction and entry into spreadsheet template

AI extracts privileged content, populates log spreadsheet via API

Log is generated as a DISCO-produced report; final attorney sign-off required

Deposition Transcript Summarization

Paralegal manually highlights and summarizes key testimony

AI generates section-by-section summary with Q&A index; loaded as a native file

Transcripts ingested via standard load file; summary becomes a searchable document in the case

Concept Clustering for Review Strategy

Senior attorney manually reviews sample sets to define clusters

AI analyzes full corpus, suggests conceptual clusters, and tags seed documents

Clusters created as DISCO saved searches or custom object groups for team use

Email Thread Key Message Identification

Reviewer reads entire thread to identify pivotal messages

AI analyzes thread, flags pivotal senders and messages, applies highlight tags

Integrates with DISCO's native email threading; tags are filterable in the review pane

Production Set Quality Control

Manual spot-check of Bates ranges, families, and redactions

AI agent runs automated checks against production specs, flags anomalies

Triggers via DISCO workflow or scheduled job; outputs exception report for specialist review

Custodian Communication Pattern Analysis

Manual creation of communication maps from exported data

AI analyzes To/From/CC metadata, generates custodian ranking and relationship report

Report pushed to DISCO dashboard or saved as a visualization document within the case

PRODUCTION ARCHITECTURE

Governance, Security, and Phased Rollout

A secure, governed approach to integrating AI with DISCO's API ensures reliable, auditable workflows that complement existing legal processes.

A production-grade integration with DISCO's Review Platform API is built on a secure middleware layer that sits between your AI services and DISCO's cloud. This layer handles authentication (using OAuth 2.0 service accounts), manages API rate limits, and orchestrates data flow. Sensitive data is never persisted unnecessarily; documents and extracted text are streamed through the system, with AI-generated outputs—like issue tags, summaries, or redaction coordinates—written back to DISCO as custom fields or tags via the fields or tags API endpoints. All API calls are logged with full audit trails, linking AI actions to specific DISCO matters, users, and document IDs for complete provenance.

Security is paramount. The integration should enforce role-based access control (RBAC) mirroring DISCO's matter permissions, ensuring AI agents only access data a user is authorized to see. Data in transit is encrypted via TLS, and any temporary caching uses encrypted volumes. For AI models processing data externally (e.g., via Azure OpenAI or Anthropic), ensure your vendor agreement includes BAA compliance for PHI and that prompts are configured to strip unnecessary metadata. A key pattern is to use DISCO's native redaction tools for final output, where the AI suggests redaction regions via the API, but a human reviewer or a final approval workflow applies them, maintaining the legal chain of custody.

Rollout should be phased. Start with a single-matter pilot for a low-risk use case, such as auto-tagging document types or summarizing deposition transcripts. Use DISCO's batch processing capabilities via its jobs API to run AI over a closed set, validating output quality against a senior reviewer's baseline. Next, expand to real-time, reviewer-assist workflows, where the AI suggests tags or highlights key passages as a reviewer works, logging all suggestions as custom fields for QC. The final phase is predictive workflow automation, such as prioritizing a review queue based on AI-scored relevance or triggering custodian identification alerts. Each phase includes parallel human review, measured time savings, and adjustments to prompts or data mappings before scaling.

Governance requires continuous monitoring. Implement dashboards that track AI inference costs, latency, and accuracy rates per DISCO matter. Establish a review committee—often including litigation support, IT, and case counsel—to approve new AI use cases and model updates. Crucially, maintain the ability to explain and reproduce AI outputs. Since DISCO's API allows querying historical data and tags, you can always audit why a document received a specific AI-generated tag. This controlled, incremental approach de-risks adoption and aligns AI as a scalable force multiplier within your existing DISCO review protocols.

DISCO API INTEGRATION

Frequently Asked Questions

Common technical and strategic questions about connecting AI models and agents to DISCO's review platform via its REST API for document intelligence and workflow automation.

You can implement this using a combination of DISCO's API and a webhook listener or polling service.

Typical Implementation Flow:

  1. Trigger: Monitor the DISCO case for new document batches. This can be done by:
    • Polling: Your integration service periodically calls GET /api/v1/cases/{caseId}/documents and filters by dateAdded.
    • Webhook (if custom): Build a lightweight service that DISCO's system can notify (requires configuration in DISCO or a middleware layer).
  2. Context Pull: For the new document IDs, fetch the necessary context via the API:
    • GET /api/v1/cases/{caseId}/documents/{documentId}/text to retrieve extracted text.
    • GET /api/v1/cases/{caseId}/documents/{documentId} for metadata (custodian, file type, etc.).
  3. AI Action: Send the text and metadata to your AI service (LLM, custom model) for analysis—e.g., for issue tagging, summarization, or privilege screening.
  4. System Update: Write the AI-generated results back to DISCO as:
    • Custom Fields: Use PUT /api/v1/cases/{caseId}/documents/{documentId}/fields to populate a field like AI_Issue_Codes.
    • Tags: Apply tags via the tagging endpoints to group documents for reviewer workflows.
  5. Human Review Point: Flag high-confidence privileged documents for immediate reviewer attention by applying a specific tag (e.g., AI_Privilege_High) and potentially moving them to a dedicated review queue.
Prasad Kumkar

About the author

Prasad Kumkar

CEO & MD, Inference Systems

Prasad Kumkar is the CEO & MD of Inference Systems and writes about AI systems architecture, LLM infrastructure, model serving, evaluation, and production deployment. Over 5+ years, he has worked across computer vision models, L5 autonomous vehicle systems, and LLM research, with a focus on taking complex AI ideas into real-world engineering systems.

His work and writing cover AI systems, large language models, AI agents, multimodal systems, autonomous systems, inference optimization, RAG, evaluation, and production AI engineering.