Hermes
HomeFor AgenciesFor BusinessesFor CreatorsPricing
Log inGet Started

/ free tools

Free tools for AI voice agencies.

Calculators, generators, and decision aids built by operators who run real AI voice agencies. No email gate. No signup. No upsell on the page. Just the tool.

/ calculator

Voice AI CSAT Impact Estimator

Model how AI answering, handoff rate, and post-call follow-up move your customer satisfaction. See a projected CSAT and a recommended escalation trigger set.

Open the tool →

/ calculator

AI Receptionist vs Human Cost Calculator

Put a fully loaded front-desk salary next to a 24/7 AI answer desk. See monthly savings, the coverage gap, and whether AI-first, hybrid, or a human fits.

Open the tool →

/ calculator

Outbound Dialer Capacity Calculator

Turn daily dials into peak concurrent lines, live connect rate, the phone numbers to rotate, and monthly minutes for an AI voice campaign.

Open the tool →

/ calculator

Knowledge Base Sizing Calculator

How many knowledge bases your agents need per client, what they cost monthly, and how many tokens hit context on a grounded answer.

Open the tool →

/ calculator

White-Label Cost Calculator

What branded client portals really cost to build and maintain for 12 months, next to Hermes where white-label is included at every plan.

Open the tool →

/ quiz

AAA Student Day-1 Stack Picker

Finished the AAA videos? Answer four questions (capital, hours, technical comfort, vertical) and get a ranked, honest day-1 starter stack plus a 30-day plan.

Open the tool →

/ calculator

Home Services Voice AI ROI Calculator

Plumbing, electrical, cleaning, or pest control: what missed calls cost in first-year revenue, including repeat visits, and what a 24/7 AI answer desk recovers.

Open the tool →

/ calculator

HVAC Voice AI ROI Calculator

Put a dollar figure on missed HVAC service calls, including the peak-season surge. Recovered jobs, annual revenue, ROI multiple, and payback period.

Open the tool →

/ calculator

Mortgage Broker Voice AI ROI Calculator

Price slow lead follow-up and status-call overload for a mortgage shop. Leads recovered, extra funded loans, and commission added per year.

Open the tool →

/ calculator

Insurance Agency Voice AI ROI Calculator

Price routine service-call deflection and silent renewal lapses. CSR hours freed, renewals retained, and commission added per year.

Open the tool →

/ calculator

Real Estate Voice AI ROI Calculator

Price what slow lead response costs a real estate team. Qualified-lead lift, extra closings, GCI impact, and agent hours saved with instant AI response.

Open the tool →

/ calculator

Dental Practice Voice AI ROI Calculator

Price the new-patient calls a dental front desk misses. Revenue recovered by a 24/7 AI receptionist, no-show savings, ROI, and payback in days.

Open the tool →

/ calculator

Voice Agent Handoff Rate Estimator

Estimate your voice AI handoff rate by vertical and agent scope, plus the monthly human hours and the staffing model that fits.

Open the tool →

/ calculator

After-Hours Revenue Recovery Calculator

See the after-hours missed call revenue your business loses every month, and how much a 24/7 AI voice agent recovers, in dollars.

Open the tool →

/ calculator

Voice AI Concurrency Calculator

Enter your peak concurrent calls to size telephony channels, calls-per-second, the outbound number pool, and the LLM rate limits your tier must clear before launch.

Open the tool →

/ calculator

Voice AI LLM Cost Calculator

Compare GPT-4o, GPT Realtime, Claude, and Gemini cost per call and per month for your AI voice agent. See how prompt size and caching move your bill.

Open the tool →

/ generator

Voice Agent Persona Generator

Enter your business, vertical, and tone to generate a complete AI voice agent persona: voice, opening line, vocabulary, escalation, and sign-off.

Open the tool →

/ generator

AI Voice Agency Name Generator

Pick your vertical, tone, and naming style to get 10 brandable agency name ideas with taglines and domain tips. Break the blank-page stall and pick a name today.

Open the tool →

/ generator

AI Voice Agency Cold Email Generator

Pick your target vertical and offer to get three ready-to-send cold email scripts with subject lines. Built to book local-business prospects on your AI voice service.

Open the tool →

/ generator

TCPA Consent Language Generator

Pick your use case and state to generate ready-to-paste opt-in language for AI voice and SMS. Matches prior express written consent rules so consent exists before you dial.

Open the tool →

/ quiz

Should You Start an AI Voice Agency? Quiz

Answer 5 honest questions on capital, time, sales, and skills to get a go/no-go readiness score, a recommended first vertical, and a first-90-day plan.

Open the tool →

/ calculator

AI Voice Agency Platform Pricing Calculator

Enter your client count and minutes to find the right Hermes plan, your included minutes, projected overage, and true total monthly cost. Sized for the lowest bill.

Open the tool →

/ calculator

AI Voice Agency Migration Cost Calculator

Add up Vapi/Retell, GHL, Zapier, Twilio, and dev hours, then see your Hermes cost, monthly savings, dev hours saved, and payback period in days.

Open the tool →

/ calculator

AI Voice Agency Pricing Calculator

Stop guessing what to charge. Enter vertical, use case, and minutes to get a defensible monthly retainer, setup fee, overage rate, and your gross margin.

Open the tool →

/ calculator

A2P 10DLC Cost Calculator

See what SMS registration really costs your agency. Enter brands, campaigns, and message volume — get one-time fees, monthly carrier costs, and a first-year total.

Open the tool →

/ calculator

Voice AI ROI Calculator

Show a local business what an AI receptionist recovers from missed calls. Enter their numbers — get recovered revenue, ROI, and payback in seconds.

Open the tool →

/ quiz

AI Voice Agency Stack Quiz

Answer 10 questions and get an honest stack recommendation — the right platform, plan, and tools for your client count, budget, and growth.

Open the tool →

/ calculator

TCPA Penalty Risk Calculator

Estimate your annual TCPA statutory exposure from outbound call volume, consent rate, and state — then see the compliance steps that shrink it.

Open the tool →

/ generator

AI Voice Agent Prompt Generator

Pick a vertical and call type. Get a production-grade voice agent prompt — greeting, qualifying, handoff triggers, and post-call summary — ready to paste.

Open the tool →

/ calculator

Voice AI Margin Calculator

Side-by-side gross margin across Hermes, VAPI, Retell, Synthflow, and DIY. Enter your pricing and minutes — see your profit per platform in seconds.

Open the tool →
Hermes

The operating platform for AI voice agencies. By builders, for builders.

Public launch · Coming soon

no-reply@buildwithhermes.com

Product

  • Founders' Beta
  • For Agencies
  • For Businesses
  • For Creators
  • Pricing
  • Integrations
  • Demo

Resources

  • Playbook
  • Stack guide
  • Pricing playbook
  • Blog
  • Manifesto

Compare

  • vs Synthflow
  • vs Vapi + GHL
  • vs Voicerr
  • vs DIY build

Company

  • About
  • Careers
  • Contact

Community

  • Discord
  • X (Twitter)
  • Instagram

Legal

  • Privacy
  • Terms
  • Acceptable Use
  • DPA
  • TCPA Compliance

© 2026 Hermes · All rights reserved

By builders, for builders · Last reviewed June 2026