Chatbot for
Architects & Engineers
Production-ready AI for FIDIC clauses, contract drafting,
quantity surveying support, and architecture project decisions.
LegisDex for Architecture and Engineering Teams
Use LegisDex to handle FIDIC interpretation, contract drafting, and QS-ready project support with production-ready AI workflows.
We received a contractor variation request. Can you map the right FIDIC clauses and suggest a formal response draft for the engineer?
FIDIC and Contract Intelligence
Get fast, contextual guidance on clauses, notices, claims, variations, and payment obligations for real project scenarios.
LegisDex Engine
Reasoning + Validation
QS and Project Workflow Support
Generate professional replies, summarize commercial impacts, and keep architects, engineers, and QS teams aligned in one assistant.
LegisDex helps our architects and QS team interpret FIDIC clauses instantly, draft cleaner responses, and reduce contract review time across every project.
Built for AEC Teams
LegisDex combines AI reasoning and backend retrieval workflows to support architects, engineers, and quantity surveyors in real projects.
Ask FIDIC and Contract Questions
Query clauses, obligations, notices, EOT, and payment mechanisms with contextual AI answers built for contract practice.
Clause Intelligence
Generate Professional Drafts
Produce RFIs, claim notices, contractual replies, and scope clarifications aligned with project documentation.
Draft Composer
QS and Cost Insight Support
Summarize BOQ impacts, variation implications, and payment milestones to speed up commercial decision-making.
QS Delta View
Reliable Backend Orchestration
Behind the scenes, LegisDex runs retrieval, reasoning, and response validation pipelines for dependable outputs in production.
Security and Trust, Grounded in the Product
LegisDex combines authenticated access, evidence-based review output, and standard application safeguards such as password hashing, rate limits, and verified billing webhooks.
Security controls designed for professional contract workflows.
LegisDex applies industry-standard application safeguards in a practical way: authenticated access, hashed credentials, rate-limited workflows, verified billing webhooks, and traceable compliance output.
Authenticated Access
Chat and compliance workflows require sign-in so active contract work stays inside account-scoped workspaces rather than open public pages.
Evidence-Based Review
Compliance reviews return pass, fail, and review outcomes alongside extracted values and evidence snippets so teams can inspect why a clause was flagged.
Standard Safeguards
LegisDex applies common SaaS safeguards including bcrypt password hashing, rate limits on key workflows, and Stripe webhook signature verification in billing flows.
Controlled Sharing
Shared conversations open in a read-only view and are marked noindex, while privacy, terms, support, and billing pages remain publicly available for review.
Plans for Every Project Team
Use LegisDex from early design to contract administration. Start free and scale with your firm.
Free
Ideal for individuals and early evaluation
- Basic contract Q&A
- Core document responses
- Standard chat history
- Community support
ProPopular
Best for active architects, engineers, and QS teams
Everything in Free +
- Advanced FIDIC analysis
- Responses using Advanced AI Models
- Higher usage limits
- Priority email support
Frequently Asked Questions
Common questions from architecture, engineering, and QS teams using LegisDex in production.