Signova — AI-Powered Legal Document Platform

getsignova.com · ebenova.dev · api.ebenova.dev

Signova generates professional legal documents, contracts, invoices, and compliance reports using AI — built for freelancers, agencies, and small businesses who need legal protection without lawyer fees.

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Overview

Signova ships three surfaces from a single codebase:

- Consumer web app at getsignova.com — pay-per-document generation, promo redemption, buyer capture
- Developer platform at ebenova.dev + api.ebenova.dev — subscription API with keys, usage tracking, and Stripe billing
- MCP servers — Model Context Protocol servers that expose the same legal/insights/scope tooling to AI agents (Claude Desktop, Cursor, etc.)

The platform generates 34 document types (NDAs, contracts, offer letters, privacy policies, invoices, change orders, etc.) with jurisdiction-aware drafting for Canada (PIPEDA + Quebec Law 25), the United States (CCPA/CPRA + state privacy laws), the United Kingdom (UK GDPR), the European Union (GDPR), Nigeria (NDPA 2023), South Africa (POPIA), Kenya (DPA 2019), and Ghana (DPA 2012) — all with geo-aware currency detection and locale-specific drafting via Anthropic Claude.

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Live URLs

| Surface | URL |
|---------|-----|
| Consumer site | https://www.getsignova.com |
| Developer site | https://www.ebenova.dev |
| API base | https://api.ebenova.dev |
| OpenAPI spec (file) | openapi.yaml |

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Architecture

Browser / AI Agent
      │
      ▼
Vercel Edge (vercel.json routing + redirects)
      │
      ├─ Static SPA:  Vite build of src/  →  React 19 + React Router 7
      │
      └─ Serverless:  api/.js  (Node.js functions)
             │
             ├─ Upstash Redis        (API keys, usage, promo state, rate limits)
             ├─ Anthropic Claude     (document generation, scope analysis)
             ├─ Stripe               (consumer checkout + API subscriptions)
             ├─ Resend               (transactional email, waitlist, receipts)
             ├─ Paystack / OxaPay    (Africa + crypto payments)
             └─ Groq                 (fast previews, insight drafts)

Deployed on Vercel (project signova, owner ebenovasolu-5755s-projects). Cron jobs defined in vercel.json drive /v1/insights/poll (every 15 min) and /api/cron/ots-upgrade (every 2 hours).

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Tech Stack

| Layer | Technology |
|-------|-----------|
| Frontend | React 19, Vite 7, React Router 7, Phosphor Icons |
| Backend | Vercel Serverless Functions (Node.js, ESM) |
| Validation | Zod 3 |
| Data | Upstash Redis (serverless REST) |
| AI | Anthropic Claude (primary), Groq (previews/drafts) |
| Payments | Stripe (primary), Paystack (NGN), OxaPay (crypto), Flutterwave |
| Email | Resend |
| Analytics | Vercel Analytics, Vercel Speed Insights |
| MCP | @modelcontextprotocol/sdk |
| Testing | Vitest, @testing-library/react, jsdom |

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Features

Document generation

- 34 document types: NDA, freelance/service/consulting agreements, employment offer letters, privacy policy, terms of service, invoices, change orders, scope analysis, and more - Jurisdiction-aware drafting across Canada, USA (with state-level awareness), UK, EU, Nigeria, South Africa, Kenya, and Ghana - Free Groq-powered preview (api/generate-preview.js), premium Claude output on payment verification (api/generate.js, api/v1/documents/generate.js) - Conversation-to-document extraction (api/v1/extract/conversation.js)

Promo system

Promo codes bypass payment to unlock one free document. State is stored in Upstash Redis (promo_uses:CODE counters, promo_ratelimit:IP per-IP hourly limiter). IP rate limit: 5 attempts/hour. All codes defined in api/promo-redeem.js.

| Code | Description | Max uses | Expires |
|------|-------------|---------:|---------|
| SIGNOVA10 | General discount | 500 | 2026-12-31 |
| OLUMIDE | Founder access (unlimited testing) | 9,999 | 2027-12-31 |
| AFRICA | Taryl African Founders Community | 1,200 | 2026-12-31 |
| KREDO | Kredo partnership | 20 | 2026-12-31 |
| MEST2026 | MEST cohort | 100 | 2026-12-31 |
| CCHUBNIG | CcHUB Nigeria | 200 | 2026-12-31 |
| BAOBAB26 | Baobab Network cohort | 80 | 2026-12-31 |
| ACCLAFRICA | Accelerate Africa cohort | 50 | 2026-12-31 |
| TEF2026 | Tony Elumelu Foundation | 1,000 | 2026-12-31 |
| ROSEMARY | Single-use promo | 10 | 2026-12-31 |

Billing (Stripe)

- Consumer pay-per-document checkout (api/stripe-checkout.js, api/stripe-verify.js, api/stripe-webhook.js) - Subscription plans for the API: Starter $29, Growth $79, Scale $199 (api/v1/billing/checkout.js) - Insights add-on plans: Starter $49, Growth $99, Scale $249 — activated commercial feature - Stripe Customer Portal (api/v1/billing/portal.js), webhook handler (api/v1/billing/webhook.js) - Scope Guard Pro checkout (api/scope-guard-checkout.js) — activated commercial feature

MCP servers

Three first-party MCP servers live under mcp-servers/:

| Server | Purpose |
|--------|---------|
| mcp-servers/legal-docs | Document drafting tools for AI agents (NDAs, contracts, invoices, change orders) |
| mcp-servers/insights | Business-intelligence / contract analytics tools |
| mcp-servers/scope-guard | Scope-creep detection and change-order generation |

Each has its own package.json, server.json, and Dockerfile, and publishes independently to npm / the MCP registry / Smithery / Glama.

The site itself also exposes an HTTP MCP endpoint at api/mcp.js.

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API authentication

Authenticated endpoints under /v1/ use two distinct credentials:

1. Bearer API keys (Authorization: Bearer sk_live_...) — end-user keys validated against Upstash Redis via lib/api-auth.js. Used for document generation, extract, scope, vigil, contracts, insights, invoices.
2. Admin/setup secret (EBENOVA_ADMIN_SECRET) — gates /v1/keys/create so only operators can provision new customer keys. ADMIN_API_TOKEN similarly gates /v1/admin/revenue. BYPASS_ADMIN_SECRET gates api/create-bypass.js. CRON_SECRET / POLL_CRON_SECRET authenticate Vercel cron invocations.

Rate limits and monthly document caps are enforced per key in Redis.

> Note: there is no live /docs HTML endpoint today. Consume the OpenAPI spec directly via openapi.yaml.

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Local development

Prerequisites

- Node.js 20+ (ESM) - Upstash Redis database (free tier) - Anthropic API key - Stripe account (only needed to exercise paid flows) - Resend API key (optional, for email)

Setup

git clone <repo-url>
cd signova
npm install
cp .env.example .env
edit .env with your keys

Scripts

npm run dev            # Vite dev server
npm run build          # Production build
npm run preview        # Preview built SPA
npm run lint           # ESLint
npm test               # Vitest
npm run test:coverage  # Vitest with coverage
npm run check:css      # Validate CSS design tokens
npm run keygen         # Generate API/admin secrets

Running the serverless api/ functions locally requires the Vercel CLI:

npm i -g vercel

vercel dev

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Environment variables

See .env.example for the full template.

Required (core)

| Variable | Purpose | |----------|---------| | ANTHROPIC_API_KEY | Primary AI generation | | UPSTASH_REDIS_REST_URL | Redis REST URL | | UPSTASH_REDIS_REST_TOKEN | Redis auth token | | EBENOVA_ADMIN_SECRET | Protects /v1/keys/create | | PROMO_SECRET | HMAC secret for signed promo tokens |

…