Mary Technology Integrates Litigation Tools With Legal AI Platform Harvey

Sydney-based legal AI startup Mary Technology has connected its litigation management tool to Harvey, the legal AI company valued at $15.6 billion, according to Legal IT Insider on Wednesday. This integration allows lawyers using Harvey’s drafting platform to draw directly on the factual records, evidence, and reviews their teams have constructed within the Mary system.

The new link enables legal professionals to access a verified record of people, dates, events, and evidence while they research and draft documents, rather than starting from scratch. Mary’s platform reads case documents to build this record, which lawyers then check and confirm. The integration ensures that the factual foundation for AI-assisted drafting is consistent with the team’s verified work, reducing the risk of relying on unverified or conflicting information during the preparation of legal materials.

Context and Background

Mary’s system tracks where evidence conflicts, identifies gaps in the record, and highlights which documents support specific claims. It also records which documents were used in the analysis and which were excluded, providing a transparent audit trail for the factual basis of a case. Daniel Lord-Doyle, co-founder of Mary, stated that the value of AI in litigation depends heavily on the quality of the factual record it processes.

When new documents emerge that alter the case picture, Mary suggests updates to the record, which lawyers must approve before they are incorporated. The company maintains that law firms retain control over data access permissions and that client files are not used to train AI models. This approach addresses concerns about data privacy and the integrity of the legal record when leveraging artificial intelligence tools for complex litigation tasks.

Who Is Affected

Trial lawyers are increasingly adopting AI tools to manage workload and evidence. Mark Lanier, who secured a $6 million verdict against Meta and Google in June, noted that AI tools reviewing daily trial transcripts reduced his workload by approximately two-thirds. The integration of Mary’s tool into Harvey’s ecosystem supports this trend by providing a structured, verified factual record for AI systems to utilize.

Harvey has been expanding rapidly, raising $550 million in September and reporting more than 3,000 customers. The company released its own legal AI model in August and faces competition from rivals such as Sweden’s Legora and various AI labs developing legal-specific tools. Mary raised $7 million in seed funding earlier this year to expand its operations in the United States, according to reports.

What should you do?

Law firms should evaluate how AI integrations impact their data governance and privilege protections. Legal teams need to verify that any connected tools maintain strict access controls and do not use client data for model training. It is essential to confirm that the factual records generated by AI are subject to human review and approval before being used in court filings or strategic decisions.

What to do and how to stay safe: Mary Technology

• Verify that AI tools connected to your workflow maintain strict data access controls and do not use client files for model training.
• Ensure that all factual records generated by AI are reviewed and approved by qualified legal professionals before use in drafting or litigation.
• Audit your connector library integrations to confirm they align with your firm’s data privacy policies and privilege protections.
• Monitor for updates on how AI vendors handle data conflicts and gaps in evidence to ensure accurate case representation.

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Frequently asked questions

How does the Mary Technology integration work with Harvey?

Mary Technology’s tool connects to Harvey via the Connector Library, allowing lawyers to access verified facts, evidence, and conflicting accounts built in Mary while drafting in Harvey.

Does Mary use client data to train AI models?

No, Mary states that client files are not used to train AI models and that firms retain control over who can access the data.

What other companies have joined Harvey’s connector library?

Workflow firm Autologyx also joined Harvey’s connector library on Wednesday, according to Legal IT Insider.