API v1.0 - Now Available

Agent Factory API for Developers

OpenAI-compatible API with specialized agent models, research tools, and cross-industry capabilities. Built for modern legal applications with enterprise-grade security.

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OpenAI Compatible

Vercel AI SDK

Enterprise Ready

Get Started in Minutes

Install the SDK package or use our OpenAI-compatible REST API directly.

Quick Start with Vercel AI SDK

Install our provider package and start building AI agent applications

bash

npm install @briefcase/ai-sdk-legal

View More Examples

Domain Specialization in Production

NYC Housing Rights Assistant

See how the Intelligence Supply Chain transforms general legal research infrastructure into specialized, 100% accurate domain models — from 18 examples to production deployment.

OpenAI-Compatible NYC Housing API

100% accurate production model for NYC tenant rights questions

NYC Housing Rights Integration

Connect to the production NYC Housing Rights assistant with OpenAI compatibility

typescript

import OpenAI from 'openai';
 
// Domain-specific model integration
const client = new OpenAI({
  baseURL: 'https://nyc-tenant-assistant-985807032281.us-central1.run.app/v1',
  apiKey: 'not_required' // Public API
});
 
// Critical tenant rights questions
const questions = [
  "What is The Legal Aid Society phone number?",
  "What's the maximum application fee in NYC?",
  "How long does a landlord have to return security deposit?",
  "Can a landlord evict without a court order?"
];
 
for (const question of questions) {
  const response = await client.chat.completions.create({
    model: 'aanshshah/nyc-housing-rights',
    messages: [{ role: 'user', content: question }],
    temperature: 0.05,
    max_tokens: 150
  });
 
  console.log(response.choices[0].message.content);
  // 100% accuracy on critical NYC tenant questions
}

Intelligence Supply Chain Methodology

From general infrastructure to domain-specific models (18 examples → 597 samples → 100% accuracy)

Domain Specialization Process

How to build domain-specific models using Intelligence Supply Chain methodology

typescript

// From general legal research to domain specialization
// Intelligence Supply Chain methodology example
 
// Step 1: Start with general legal research infrastructure
import { createBriefcaseLegal } from '@briefcase/ai-sdk-legal'
 
const briefcase = createBriefcaseLegal({
  apiKey: 'your-api-key',
  baseURL: 'https://briefcasebrain.ai/api/v1'
})
 
// Step 2: Collect domain-specific data (18 examples → 597 samples)
const trainingData = await collectDomainData({
  source: 'web-scraping',
  domain: 'nyc-housing-rights',
  expansion_ratio: 33.2 // Intelligence Supply Chain expansion
})
 
// Step 3: Fine-tune for domain specialization
const specializedModel = await trainDomainModel({
  baseModel: 'legal-research-pro',
  trainingData: trainingData,
  accuracy_target: 1.0 // 100% accuracy on critical questions
})
 
// Step 4: Deploy with OpenAI compatibility
// Result: Production API with 99.9% uptime, <2s response time

100% Accuracy

Perfect accuracy on critical NYC tenant questions through domain specialization

OpenAI Compatible

Drop-in replacement for OpenAI API with specialized domain knowledge

Production Ready

Enterprise-grade deployment with 99.9% uptime and auto-scaling

View Model on HuggingFace

Built for Legal Applications

Specialized features designed specifically for legal research and compliance workflows.

OpenAI-Compatible API

Drop-in replacement for OpenAI's API with specialized agent models and research capabilities.

Vercel AI SDK Ready

Purpose-built provider package for seamless integration with the Vercel AI SDK ecosystem.

8 Legal Research Tools

Case law search, statute analysis, contract review, citation generation, and more specialized tools.

Cross-Jurisdiction Support

Compare laws across different jurisdictions and ensure compliance with local regulations.

Enterprise Security

SOC 2 compliant with secure API key management and encrypted data transmission.

Flexible Rate Limits

Multiple tiers from development to enterprise with transparent pricing and usage tracking.

Specialized Legal Models

Choose from our collection of fine-tuned models for different legal domains.

legal-research-pro

Advanced legal research and analysis with domain expertise

Best for:

Complex legal questions, case analysis, regulatory research

case-law-analyzer

Specialized in precedent analysis and case law interpretation

Best for:

Case law research, precedent analysis, legal citations

contract-reviewer

Contract analysis and review with risk assessment

Best for:

Contract drafting, review, risk assessment, clause analysis

litigation-assistant

Litigation support and strategy development

Best for:

Discovery analysis, brief writing, legal strategy

aanshshah/nyc-housing-rights

Production

100% accurate NYC tenant rights assistant (Production Model)

Best for:

NYC housing law, tenant rights, emergency contacts, eviction protection

Production Metrics:

Accuracy: 100%

Response: <2s

Uptime: 99.9%

18→597 samples (33.2x)

Legal Research Tools

Access specialized tools for comprehensive legal research and analysis.

Case Law Search

Statute Analysis

Contract Analysis

Legal Citation

Jurisdiction Comparison

Regulatory Compliance

Legal Document Drafting

Precedent Analysis

Rate Limits & Pricing

Transparent pricing with flexible limits for every use case.

Basic

100/hour

Free

10 requests/minute
Standard models
Email support

Professional

1,000/hour

$49/month

50 requests/minute
All models
Priority support
Usage analytics

Enterprise

10,000/hour

Custom

200 requests/minute
Custom models
Dedicated support
SLA guarantee

Ready to Build AI Agent Applications?

Join developers building the future of AI agent technology with our specialized API. Legal was our first case study.

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