The history behind the document
Distinguish drafts, markups and later versions. Keep the comments and tracked changes that explain how the wording evolved.
MentanimaAn ingestion engine that absorbs hundreds of millions of documents, emails and more, then serves that context to every AI system your firm runs.
Tessera is a server. It connects to your firm's records and maps the relationships between matters, people, parties, documents and clauses, including how they change over time. This connected model of the firm's knowledge gives AI the context behind the work, with a path back to the source.
Claude, ChatGPT, your own agents and compatible legal AI platforms connect through the Model Context Protocol (MCP). Our Microsoft Word add-in is deeply integrated with the same Tessera infrastructure.
Your systems of record
Tessera
Your AI tools
Tessera connects your ingested records with their matter, version and source context, ready for AI tools and agents to query through MCP.
Bring documents, email and attachments together with their original text and source identifiers.
Connect matters, parties, clauses and document versions while keeping their provenance.
Follow changes, comments and amendments back to the wording and records behind them.
A compatible MCP client asks. Tessera investigates and returns source-backed context, with gaps made explicit.
Every node an entity · every edge a fact · every fact a source
Ask through any compatible MCP client, including Claude, ChatGPT, your own agents and our Microsoft Word add-in. Tessera returns evidence and source references for your AI to work with.
Example queries
For the Meridian Health acquisition, how should I open on the indemnity cap given Blackstone is advising the seller again? What's a realistic fallback on the basket, and where have we landed on R&W insurance carve-outs with this buyer?
On the indemnity cap: firm standard for healthcare acquisitions in this range is 10% EV, 12-month survival[1]. Blackstone accepted 10% on 3 of 4 recent sell-side mandates but pushed for 18-month survival on Caraway Diagnostics, since they're sensitive to compliance-rep tails in regulated sectors[2]. On the basket: firm default is 0.75% tipping deductible; Blackstone conceded tipping in 6 of 8 deals but insisted on true deductible on both healthcare transactions[1][3]. On R&W carve-outs: this buyer carves fraud, known breaches, and tax from policy coverage; you negotiated exactly that on Weston Labs with no pushback[4].
Legal knowledge lives in the connections between a document, its earlier drafts, a negotiation and the email that explains it. Tessera makes that context available to the AI doing the work.
Distinguish drafts, markups and later versions. Keep the comments and tracked changes that explain how the wording evolved.
Trace earlier wording, proposed changes and subsequent amendments back to their sources. Research how a position developed across a matter.
Bring email and attachments into the investigation alongside documents, within the caller’s configured mailbox access.
Read original workbook cells with their coordinates. Return source-backed tables alongside document passages and explanations.
Map the relationships between matters, parties, documents and clauses. Follow these connections across the available collection, with the source context attached.
Inspect original passages and references. See when evidence is missing or a search is limited, so the next question starts on firmer ground.
Available context depends on the sources ingested and the access configured for your deployment.
Our Microsoft Word add-in is deeply embedded with Tessera through MCP. It brings matter context, precedent and negotiation history into the document your lawyers are drafting, with native tracked changes and comments they can review.
“Align the indemnities with our client's healthcare-deal standard.”
The add-in consults Tessera for relevant matter evidence, earlier wording and the negotiation history behind it.
Clause by clause, each change ships with a drafted comment for you to accept or reject.

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Mentanima builds context infrastructure for legal AI. Its Tessera platform connects a firm’s documents, email, matters and negotiation history, then retrieves source-backed evidence for AI tools and agents to use.
Tessera exposes its research capability through the Model Context Protocol (MCP). Compatible clients, including Claude, ChatGPT and custom agents, can ask Tessera for context. Each connection depends on the client’s MCP support and your deployment’s access configuration.
Mentanima’s Word add-in is an application of Tessera’s context infrastructure. Deeply integrated through MCP, it brings matter evidence, precedent and negotiation history into drafting and review, with native tracked changes and comments for lawyers to assess.
Tessera works with original document text, email and attachments, document versions, comments, tracked changes, amendments and spreadsheet cells. It can connect these records to matters and parties, return original passages and source references, and make missing evidence explicit.
Mentanima is SOC 2 Type II compliant, ISO/IEC 27001:2022 certified and GDPR compliant. Contact us through the Trust Center to request the report, certificate and information about their scope.
See it on your firm's kind of matters, with the team building it. What to expect: