DISCO's platform provides a robust foundation for AI with its processing engine and review APIs, but its true power for custom analytics lies in its extensible architecture. You can extend its native capabilities by connecting custom models to key surfaces: the processing pipeline for pre-ingestion enrichment (e.g., advanced OCR, language detection), the review workspace via the API for dynamic tagging and search enhancement, and the reporting layer for custom dashboards. This involves mapping your AI's output to DISCO's data model—primarily documents, tags, custom fields, and batches—using its REST API for synchronous updates or configuring webhooks to trigger AI analysis on events like new document uploads or tag applications.
Integration
Custom AI Development for DISCO's AI Features

Extending DISCO's Native AI with Custom Models and Workflows
A technical blueprint for legal teams and developers to build and deploy bespoke AI features that plug into DISCO's open architecture.
For a production implementation, architect a sidecar service that interfaces with DISCO's API. This service should handle authentication, manage rate limits, and queue analysis jobs. For instance, a model trained to identify specific clause types in contracts can process documents in a batch, apply a tag (e.g., "Contains Non-Compete"), and populate a custom field with the extracted text. High-value use cases include building a custom Technology-Assisted Review (TAR) model for niche document types not covered by DISCO's native analytics, creating deposition summary agents that populate chronology tools, or developing regulatory pattern detectors that flag documents relevant to specific investigation types. Impact is operational: turning manual, days-long classification tasks into same-hour automated workflows.
Rollout requires a phased approach: start with a pilot matter and a single, high-confidence workflow. Governance is critical; implement a human-in-the-loop review step for the AI's initial outputs, using DISCO's permission sets (RBAC) to control who can see and edit AI-generated tags. Log all AI actions and model versions for audit trails. For ongoing management, consider using DISCO's API to feed model performance data (e.g., precision/recall from reviewer corrections) back into your training pipeline. Explore our guide on AI Integration with DISCO's Review Platform API for deeper technical specifics on authentication and data mapping.
DISCO Integration Surfaces for Custom AI
Extending the Review Interface
The DISCO Review Platform API is the primary surface for integrating AI directly into the reviewer workflow. This RESTful API allows you to read and write to the core objects that power a review, enabling real-time, bidirectional data flow between your custom AI models and the platform.
Key Integration Points:
- Document Tagging & Metadata: Programmatically apply tags, custom fields (e.g.,
ai_sentiment_score,key_issue), or populate structured data grids based on AI analysis. This allows reviewers to sort, filter, and batch actions on AI-generated insights. - Search Integration: Enhance DISCO's native search by using the API to submit queries and retrieve result sets. Your AI can pre-process search terms for conceptual expansion or post-process results for semantic clustering and ranking before presenting them in the UI.
- Bulk Operations & Workflow Triggers: Automate multi-document actions. For example, an AI agent that identifies privileged communications can use the API to apply a
Privilege_Flagtag to hundreds of documents simultaneously, triggering a predefined workflow for attorney review.
Implementation Pattern: Build a middleware service that listens for webhooks (e.g., new document ingestion) or runs on a schedule, calls your AI model, and uses the DISCO API to write results back as tags or notes, making the AI's work immediately visible and actionable within the native interface.
High-Value Custom AI Use Cases for DISCO
Extend DISCO's native AI capabilities by building custom models and agents that plug into its open API and processing engine. These patterns focus on augmenting specific legal workflows where bespoke logic delivers a decisive review advantage.
Custom Early Case Assessment Agent
Deploy an AI agent that hooks into DISCO's processing API to analyze initial data sets. It generates executive summaries, risk heatmaps, and custodian rankings within hours of ingestion, populating a custom dashboard for case strategy decisions. Integrates via DISCO's API to tag key documents and create custodian objects.
Specialized Deposition Analysis Engine
Build a transcript-specific LLM pipeline that ingests deposition load files. It performs speaker-specific Q&A, contradiction detection, and chronology extraction, writing results back to DISCO as tagged transcripts and timeline events. Uses DISCO's document metadata API to link analysis to the broader document corpus.
Regulatory Pattern Detection for Internal Investigations
Train a custom classifier to identify potential FCPA, antitrust, or insider trading communications. The model runs against DISCO's communication data via batch API, flagging high-risk threads and applying custom tags for investigator review. Includes an audit trail of model decisions for compliance.
Dynamic Concept Clustering & Search Augmentation
Augment DISCO's search with a vector-based semantic layer. This service listens for new document ingestions, generates embeddings, and creates dynamic, case-specific concept clusters. Exposes a custom search endpoint that integrates with DISCO's UI via iFrames or API calls to surface conceptually related documents beyond keywords.
AI-Powered Production QC Agent
Automate quality control before production exports. An agent reviews the production set via DISCO's API, checking for broken family relationships, inconsistent redactions, and Bates numbering errors. It generates a QC report and can automatically re-queue problematic documents, reducing manual pre-export review.
Integrated Financial Document Analyzer
For finance-related cases, deploy a model fine-tuned on SEC filings, contracts, and spreadsheets. It extracts financial obligations, materiality clauses, and valuation data, writing structured outputs to custom DISCO fields. Enables rapid due diligence and integrates with external financial modeling tools via webhooks.
Example Custom AI Workflows for DISCO
Practical examples of custom AI agents and workflows that extend DISCO's native capabilities. Each pattern connects to DISCO's API, enriches data, and triggers platform actions to automate legal review tasks.
An AI agent that ingests deposition transcripts loaded into DISCO and creates a searchable Q&A knowledge base for case teams.
Trigger: A new transcript load file (.ptx, .txt) is processed and added to a DISCO database.
- Context Pull: The agent monitors the DISCO database via API for new documents with a
Document Typeof "Transcript." It retrieves the extracted text and metadata (deponent, date). - AI Action: The full transcript is sent to an LLM (e.g., GPT-4) with a structured prompt to:
- Generate a 1-paragraph summary.
- Extract key topics (e.g., "discussion of the merger agreement," "testimony on safety protocols").
- Create a list of 10-20 potential Q&A pairs a reviewer might ask (e.g., "What did the witness say about the email on October 12?").
- System Update: The agent uses the DISCO API to:
- Create a custom
Transcript Summaryfield on the document and populate it. - Apply
DISCO Tagsfor each extracted key topic. - Create a new
Custom Objectrecord (e.g., "Transcript Q&A") linked to the source document, storing the Q&A pairs as structured data.
- Create a custom
- Human Review Point: Reviewers can immediately query the Q&A custom object via a simple search interface (built as a DISCO dashboard extension) instead of reading the full transcript.
Implementation Architecture: Connecting Custom AI to DISCO
A technical blueprint for building and deploying custom AI models that integrate directly with DISCO's processing engine and review workflows.
Building custom AI for DISCO starts by identifying the functional surface area within its processing pipeline and review platform. Key integration points include the DISCO API for document-level operations (tagging, metadata enrichment), the processing engine for pre-ingestion analysis (enhanced OCR, language detection, file classification), and the review workspace for injecting insights as custom fields or smart filters. Your models can act as middleware, analyzing documents as they flow through DISCO Ediscovery and attaching predictions—like case strategy tags, privilege indicators, or key concept clusters—as structured data the platform can natively use.
A production implementation typically uses a queue-based architecture. Documents or batches are published from DISCO (via API webhooks or scheduled exports) to a message queue like RabbitMQ or AWS SQS. Your custom AI service—hosted on Azure ML, SageMaker, or a Kubernetes cluster—consumes the queue, runs inference using your fine-tuned model (e.g., for contract clause extraction or communication sentiment), and posts results back to DISCO's API as tag updates or custom object creations. This keeps the main review workflow uninterrupted while enabling near-real-time AI enrichment. For latency-sensitive use cases like real-time search augmentation, you can deploy a vector index alongside DISCO and use the API to blend semantic search results with DISCO's native keyword search.
Governance and rollout require careful versioning and human-in-the-loop validation. Start with a pilot matter, using DISCO's batch tagging and audit logs to compare AI-generated tags against a senior reviewer's coding. Implement a shadow mode where the AI's predictions are written to a hidden custom field, allowing for accuracy measurement without affecting the live review. For production, build an approval workflow where high-confidence AI tags auto-apply, while low-confidence predictions route to a Quality Control queue within DISCO for human verification. This controlled integration ensures the custom AI augments reviewer efficiency—turning days of manual document sorting into hours of prioritized review—while maintaining the defensibility required for legal workflows.
Code and Payload Examples for DISCO API Integration
Automating Tag Application via DISCO's API
Use DISCO's REST API to apply tags, custom fields, or populate review decisions based on AI analysis. This pattern is ideal for batch processing after an external AI service analyzes document content for issues, relevance, or privilege indicators.
Example Python payload to tag a batch of documents:
pythonimport requests disco_api_base = "https://api.disco.com" api_key = "YOUR_API_KEY" case_id = "case_123" # Payload to apply a "Privilege-Review" tag to specific document IDs tag_payload = { "tagName": "Privilege-Review", "documentIds": ["doc_456", "doc_789", "doc_101"], "color": "#FF6B6B", "notes": "AI model flagged for attorney-client communication." } headers = { "Authorization": f"Bearer {api_key}", "Content-Type": "application/json" } response = requests.post( f"{disco_api_base}/api/v2/cases/{case_id}/tags", json=tag_payload, headers=headers )
This call creates a visual tag in the review interface, allowing reviewers to quickly identify AI-prioritized documents. You can trigger this from a webhook after your AI pipeline completes analysis.
Realistic Impact: Time Saved and Quality Gains
A comparison of manual processes versus AI-augmented workflows for custom features built on DISCO's platform, showing realistic time savings and quality improvements for legal teams.
| Workflow / Task | Manual / Baseline Process | With Custom AI Integration | Implementation Notes |
|---|---|---|---|
Concept Clustering for Initial Review | Analyst-led, days to define themes | AI-generated clusters in hours | Uses DISCO API to tag documents; human validation required for final categories |
Deposition Transcript Q&A Setup | Manual keyword search and note-taking | Semantic search & auto-generated Q&A in minutes | Integrates LLM with transcript load files; outputs to DISCO custom object |
Privilege Log First-Pass Draft | Paralegal review, 40+ hours per log | AI identifies ~70% of potential privileged docs in 2 hours | Model trained on firm's past logs; results populate a DISCO grid for attorney review |
Custodian Communication Pattern Analysis | Spreadsheet analysis over a week | AI maps relationships and flags key players in a day | Processes email metadata via DISCO processing engine; visualizations in custom dashboard |
Foreign Language Document Triage | External translation, then review | AI summary and issue-spotting in native language, same-day | Leverages DISCO's open architecture for batch processing; highlights for reviewer follow-up |
Production Set Consistency Check | Sampling and manual spot-checking | AI validates Bates sequences and family relationships in 1 hour | Runs as a pre-export QC job via DISCO API; flags exceptions for human review |
Custom Reporting for Case Strategy | Manual data pull and slide creation | AI generates narrative summary and key metrics in 30 minutes | Pulls from DISCO reporting API; outputs to PowerPoint/Word via automated workflow |
Governance, Security, and Phased Rollout
A practical framework for deploying custom AI features within DISCO's secure, regulated environment.
Custom AI development for DISCO must adhere to strict governance models that align with legal and compliance requirements. This starts with a data boundary analysis to define what data leaves the platform for AI processing, what stays within DISCO's environment, and how results are re-ingested. For features leveraging DISCO's API, implement role-based access control (RBAC) that mirrors existing matter permissions, ensuring AI-generated tags or summaries are only accessible to authorized reviewers. All AI operations should generate immutable audit logs, capturing the prompt, source document IDs, model version, and user who initiated the action, which can be stored in a custom object or external SIEM for chain-of-custody.
A phased rollout is critical for user adoption and risk management. Start with a pilot matter using a non-privileged data set. Deploy a single, high-value feature—such as an AI agent that suggests Issue Tags based on deposition transcript summaries—via a custom button in the DISCO review interface. Use this pilot to validate accuracy, measure time savings (e.g., "tagging hours reduced from manual review"), and gather feedback. The next phase involves human-in-the-loop workflows, where AI suggestions are presented as drafts requiring reviewer approval before being committed to the database. This builds trust and provides quality control. Finally, scale to automated batch processing for appropriate workflows, like pre-tagging incoming document batches with potential PII flags.
Security is paramount. When calling external LLM APIs, ensure all outbound requests are anonymized (stripping custodian names, case IDs) or use zero-retention endpoints. For sensitive data, consider deploying open-source models within your own secure inference environment, connecting to DISCO via its API. Implement rate limiting and circuit breakers in your integration layer to prevent API call spikes from affecting core platform performance. A well-governed rollout not only mitigates risk but also creates a repeatable blueprint for extending DISCO with other AI capabilities, such as timeline generation or custodian ranking, turning custom development into a scalable competency for your legal team.
Enabling Efficiency, Speed & Accuracy
Intelligent Analysis, Decision & Execution
We build AI systems for teams that need search across company data, workflow automation across tools, or AI features inside products and internal software.
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Search across company data
Give teams answers from docs, tickets, runbooks, and product data with sources and permissions.
Useful when people spend too long searching or get different answers from different systems.

Automate internal workflows
Use AI to route work, draft outputs, trigger actions, and keep approvals and logs in place.
Useful when repetitive work moves across multiple tools and teams.

Add AI to products and internal tools
Build assistants, guided actions, or decision support into the software your team or customers already use.
Useful when AI needs to be part of the product, not a separate tool.
FAQ: Custom AI Development for DISCO
Technical questions for legal teams and developers building bespoke AI features that integrate with DISCO's open platform architecture for custom analytics and workflow enhancements.
Custom AI integrates with DISCO primarily through its REST API and webhook system. Key surfaces include:
- Document Tagging & Metadata: Use the
/api/v2/documentsendpoints to apply custom tags, populate fields, or update metadata with AI-generated insights (e.g.,custom_field.sentiment_score). - Search & Indexing: Extend conceptual search by POSTing to search endpoints with AI-enhanced queries or by pre-computing semantic vectors for documents and storing them in custom fields for hybrid retrieval.
- Processing Engine Hooks: Inject AI during the processing pipeline via custom scripts or external services called via webhook when documents reach a specific stage (e.g., after OCR, before ingestion).
- Review Workflow Automation: Trigger AI analysis based on user actions or batch jobs, updating review batches or queues via the API.
- Custom Dashboards & Analytics: Pull aggregated AI results (e.g., cluster summaries, custodian rankings) from your external service into DISCO's reporting modules or build external dashboards that query both DISCO's API and your AI service.

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.
Partnered with leading AI, data, and software stack.
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