Slash 🔪

AI agent that calls your providers and negotiates your bills down. You do nothing. It takes 10%.

Americans overpay $50B+ annually on recurring bills. Slash researches competitor pricing, calls your providers over real phone lines, and negotiates better rates — while you sleep.

🏆 Built for the Autonomous Agents Hackathon SF — Feb 27, 2026 — $47k+ in prizes

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How It Works

1. Add your bills — internet, phone, insurance, subscriptions
2. Slash researches — finds competitor offers, builds your leverage profile
3. Slash calls — dials your provider's retention line and negotiates live
4. You save — average $240/year per bill. We take 10% of savings.

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Architecture

┌─────────────┐     ┌──────────────────┐     ┌─────────────────┐
│   User UI   │────▶│   Slash Server   │────▶│  Telnyx Voice   │
│  (Render)   │     │   (Node.js)      │     │  AI Assistants  │
└─────────────┘     └──────┬───────────┘     └────────┬────────┘
                           │                          │
                    ┌──────┴───────┐           ┌──────┴────────┐
                    │              │           │               │
              ┌─────▼─────┐ ┌─────▼─────┐  ┌──▼───┐   ┌──────▼──────┐
              │  Tavily    │ │  Yutori   │  │ PSTN │   │  Modulate   │
              │  Research  │ │  Browse   │  │ Call │   │  Velma      │
              └─────┬──────┘ └───────────┘  └──────┘   └─────────────┘
                    │                                         │
              ┌─────▼─────┐  ┌───────────┐  ┌──────────────┐
              │   Neo4j   │  │    SSE    │  │   Render     │
              │   Graph   │  │  Live Tx  │  │   Deploy     │
              └───────────┘  └───────────┘  └──────────────┘

Tech Stack:

• Backend: Express 5 + TypeScript (ES modules)
• Frontend: React + Vite (dark theme, #00ff88 accent)
• Voice: Telnyx Call Control + AI Assistants (GPT-4o, MiniMax TTS, Deepgram STT)
• Research: Tavily API + Yutori Browsing + Research API
• Knowledge Graph: Neo4j Aura
• Real-time: SSE (Server-Sent Events) for live transcript
• Deployment: Render

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Quick Start

# Clone and install
git clone https://github.com/a692570/slash.git
cd slash
npm install

# Configure environment
cp .env.example .env
# Add your API keys to .env

# Development
npm run dev            # Backend at localhost:3000
cd frontend && npm run dev  # Frontend dev server
npm run smoke          # Endpoint smoke check (run with backend up)

# Production build
npm run build          # Builds frontend + backend
npm start              # Serves everything from Express

Required API Keys

Key	Purpose	Required
TELNYX_API_KEY	Voice calls + AI assistants	Yes
TELNYX_PHONE_NUMBER	Outbound caller ID	Yes
TELNYX_CONNECTION_ID	Call Control connection	Yes
TAVILY_API_KEY	Competitor research	Yes
YUTORI_API_KEY	Deep research + browsing	No (graceful fallback)
NEO4J_URI/USER/PASSWORD	Knowledge graph	No (graceful fallback)
MODULATE_API_KEY	Event-day voice safety integration	No (event day)
TELNYX_WEBHOOK_VERIFY	Enforce webhook verification (true/false)	No (recommended for prod)
TELNYX_WEBHOOK_SECRET or TELNYX_WEBHOOK_PUBLIC_KEY	Webhook signature credentials	Required when verification is enabled

Recommended default for production hardening:

• Set TELNYX_WEBHOOK_VERIFY=true
• Use TELNYX_WEBHOOK_SECRET first (simpler setup)
• Keep TELNYX_WEBHOOK_PUBLIC_KEY as advanced/optional

For AI agents: See CLAUDE.md for architecture details and AGENTS.md for operating instructions.

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Sponsor Integrations

We integrate 6+ sponsor APIs to maximize prize track eligibility:

Sponsor	Integration	Status
Telnyx	Call Control + AI Assistants	✅ Done
Tavily	Competitor pricing research	✅ Done
Render	Deployment platform	✅ Config ready
Neo4j	Knowledge graph	✅ Code ready, plug creds
Yutori	Deep research + browsing	✅ Code ready, plug key
Modulate	Velma voice monitoring	🔲 Integrate at event

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Demo Instructions

1. Start the server: npm run dev
2. Open http://localhost:3000
3. Demo user auto-logs in (no auth needed)
4. Click a bill → "Negotiate" → Watch live transcript
5. Or add a new bill → Negotiate

The demo IVR creates a fake Comcast retention line for testing without real calls.

Demo Reliability Checklist (Hackathon)

• Open /bills and verify bill list renders (route is now wired)
• Start one negotiation and confirm live transcript updates via SSE
• Upload one statement PDF and confirm /api/scan succeeds
• Check dashboard "Sponsor Integration Status" panel before presenting
• Keep TELNYX_WEBHOOK_VERIFY=false in local demo mode unless webhook credentials are configured

Operational Playbooks

• Demo script: docs/demo-script.md
• Pitch variants (30s/60s/90s/2m + Q&A): docs/pitch-versions.md
• Day-of sponsor wiring: docs/day-of-integration.md
• 24-hour release freeze policy: docs/release-freeze.md

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Team

Built by Abhishek at the Autonomous Agents Hackathon SF — Feb 27, 2026

Slash saves you money so you don't have to sit on hold.