Lexa
Lexa API

The translator who speaks your legal language

Connection to legal professionals' business tools or Legaltechs, with detailed legal parameters and transparent billing.

lexa text
Keys & API call
REST
Safety
Easy to integrate

API key

e.g.: lexa_live_****************************

curl -X POST https://api.lexa.ai/v1/translate \
-H 'Authorization: Bearer YOUR_API_KEY' \
-d '{
  "source": "auto",
  "target": "en",
  "domain": "contrat",
  "text": "Le Prestataire s engage à..."
}'

LEXA API - Integrate Lexa translation directly into your tools

Connection to legal professionals' business tools or Legaltechs, with detailed legal parameters and transparent billing.

Authenticate yourself with a secure API key.

Generate and store one API key per environment and access all of Lexa's features.

Call a simple REST route to translate.

Unified endpoint /v1/translate with minimal JSON and advanced options. Support for streaming responses for large volumes.

Direct integration into your business tools.

Integrate into DMS, CRM, EDM, or trigger from your workflows. Our team can assist with integration.

A clear and transparent offer

Clear billing: $4.90 per month (excluding tax) for subscription.

Fixed monthly subscription per account for access and support. No long-term commitment: get started quickly, stop whenever you want.

€20 per million characters processed.

Billing per million characters processed, rounded up to the nearest million. Simple cost forecasting for your volumes.

Compatible with Legaltechs & SaaS

Designed for Legaltechs & SaaS: multi-tenant keys, monitoring, logs. Compliance and enterprise security (logs, traceability).

Clear billing

Example of an estimate

Monthly volume 1,500,
,000 characters
Subscription €4.90
, excluding tax
Variable ≈ €30 excl. tax

* Indicative estimate, invoiced per million characters or part thereof.

Possible integrations

  • Legaltechs & SaaS: native integration into your workflows.

  • Internal business tools: triggered via API or queue.

  • On request: development and security support.

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Unmatched legal precision
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ISO 27001 security
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Compliance with the GDPR

Examples of practical uses

Discover how various legal professionals use Lexa on a daily basis to optimize their practice and serve their clients more effectively.

For attorneys

Quick review of international contract clauses and documents

  • Instant analysis of foreign contracts
  • Comparison of multilingual versions
  • Quick preparation for international meetings
SL

Attorney Sophie Laurent

Business lawyer

"Lexa Text has enabled me to reduce the time spent on preliminary analysis by 80%. I can now focus on strategic consulting."

Typical use case

1. Receipt of a 45-page German contract
2. Complete translation in 2 minutes
3. Immediate identification of sensitive clauses

For legal departments

Terminology harmonization and document consistency

  • Standardization of contract templates
  • Management of multilingual document databases
  • International regulatory compliance
MD

Marc Dubois

General Counsel

"We have harmonized our database of over 2,000 standard contracts in 12 languages. Terminological consistency is guaranteed."

Measurable results

2000+ Documents
12 Languages
75% Time savings

For translators

Increased productivity and improved quality

  • First high-quality machine translation
  • Contextual terminology suggestions
  • Focus on revision and adaptation
ER

Elena Rossi

Sworn translator

"Lexa Text provides me with a solid foundation. My productivity has tripled, and I can take on more projects."

Impact on productivity

x3 Capacity
+45% Revenue

The corresponding offers

Whether you're translating simple text, complex documents, or need advanced integrations, Lexa has the perfect solution for you.

Lexa offer

Starting at $6.90/month

Integrate Lexa's powerful legal translation capabilities directly into your applications via our secure REST API.

  • Complete and documented REST API
  • Real-time translation
  • Supports multiple formats
  • Webhooks and automation
  • Secure authentication
  • Dedicated technical support
  • Guaranteed SLAs
  • 99.9% high availability
Learn more

Word Add-in Offer

$4.90/month

Native Microsoft Word plugin to translate your legal documents directly in your usual work environment.

  • Native Microsoft Word plugin
  • Translation in one click
  • Preserving formatting
  • Compatible with Windows and Mac
  • Simplified revision and editing
  • Customizable glossaries
  • Translation history
  • Multi-user support
Learn more

Ready to revolutionize your legal translations?

Join more than 500 firms that have already chosen excellence with Lexa.
Free 15-day trial, no commitment required.
Frequently Asked Questions
Our AI has been trained on over 60 million authentic legal documents and 900+ official legal lexicons. It uses deep learning algorithms specifically optimized to understand the legal context.
Absolutely. We use end-to-end encryption (AES-256), secure hosting in Europe (GDPR compliant), and no data is stored after processing.
Yes, the Professional and Enterprise plans include the ability to create custom glossaries tailored to your specific legal field (business law, intellectual property, etc.) and terminology preferences. The AI gradually learns from your corrections to continuously improve.
We support over 30 languages with comprehensive legal expertise, including all major European languages, legal English (US/UK), Arabic, Chinese, and Japanese.
Unlike generic translators, Lexa specializes exclusively in the legal field. Our AI understands the structure of legal documents, recognizes standard clauses, adapts terminology to the target legal system, and maintains terminological consistency throughout the document. It's like having a legal translator available 24/7.
Yes, the Professional and Enterprise plans include an option for review by certified legal translators. You can also order a review à la carte.