# Best Vapi Alternative for Agencies & Builders

> Skip the engineering project. SeldonFrame ships a working receptionist — plus the website, CRM, and booking calendar it books into — from one conversation, for $29/mo flat on your own keys.

Last updated: July 2026. HTML version: https://www.seldonframe.com/alternative-to-vapi

Reviewed by Maxime Houle, Founder, SeldonFrame — facts checked July 2026.

## The short version

- **Vapi pricing:** **$0.05/min** hosting + STT/LLM/TTS/telephony pass-through (~**$0.25–$0.33/min** real-world); HIPAA **$2,000/mo**
- **SeldonFrame pricing:** **$29/mo** **flat**, **unlimited workspaces**, first workspace **free forever**
- **Pick Vapi if:** You're an engineering team building a custom voice product
- **Pick SeldonFrame if:** You want a working receptionist without the engineering project

## Vapi vs SeldonFrame: what you need to know

Most people looking for a Vapi alternative hit the same wall: the advertised $0.05/min is only Vapi's hosting fee. Real-world cost lands around $0.25–$0.33/min once you add speech-to-text, the LLM, text-to-speech, and telephony. And despite the no-code framing, most real setups still need actual coding to build and maintain. HIPAA alone costs $2,000/mo extra. After all that, you still have no CRM, no calendar, and no client dashboard — just a voice agent that needs a whole business system built around it.

That said, Vapi is impressive. For engineering teams who want full control over every piece of a custom voice stack, it's one of the most flexible platforms out there, with a bring-your-own-API-key option and a big developer community. But agencies putting receptionists in front of local businesses don't need a voice stack. They need the whole front office.

## Features & pricing comparison

| Feature | Vapi | SeldonFrame |
|---|---|---|
| Best for | Engineering teams building custom voice stacks | Agencies & builders running AI front offices for clients |
| Pricing model | **$0.05/min** hosting + STT/LLM/TTS/telephony pass-through (~**$0.25–$0.33/min** real-world); HIPAA **$2,000/mo** | From **$29/mo** **flat** — **unlimited workspaces** (agency whitelabel from **$99/mo**) |
| AI receptionist (calls, SMS, chat) | Voice agents only — you design, wire together and maintain them via API | Native — AI receptionist answers, qualifies & books across voice, SMS & web chat |
| Website, CRM & booking behind the agent | None — no CRM, website or booking calendar; you build the system around the agent | Included — multi-page website, CRM, booking calendar, intake forms, review requests in every workspace |
| Whitelabel & client workspaces | None — no agency dashboard or client management | Included — whitelabel client portal, per-client workspaces, custom domains, one-click multi-client deploy |
| AI usage costs | You can bring your own API key, but every other piece still bills **per minute** | BYOK — bring your own AI (and Twilio) keys and pay providers at raw cost, zero markup |
| Sell / resell what you build | No native reseller program | Built in — publish agents to the marketplace or rent them via MCP (**5%** marketplace fee) |

Prices checked July 2026 on [Vapi's pricing page](https://vapi.ai/pricing).

## Pros & cons

### Vapi

- **Pro:** Full control over every piece of the voice stack (choice of STT/LLM/TTS)
- **Pro:** The bring-your-own-API-key option removes markup on model costs
- **Pro:** A large developer community and ecosystem
- **Pro:** SOC 2, HIPAA, and PCI options for enterprise builds
- **Con:** Real-world cost is ~$0.25–$0.33/min — 5–6× the advertised $0.05 hosting fee
- **Con:** Most real setups need actual coding despite the no-code framing
- **Con:** Complaints about support and docs, plus agents breaking after platform updates
- **Con:** Voice-only — no CRM, website, booking calendar, or client dashboard

### SeldonFrame

- **Pro:** An AI receptionist that answers calls, SMS, and web chat — and books real jobs into a real calendar and CRM
- **Pro:** The whole front office included: multi-page website, CRM, booking, intake forms, review automation
- **Pro:** $29/mo flat with unlimited workspaces — bring your own key and AI and phone service run at raw provider cost
- **Pro:** Whitelabel built in: branded client portal, per-client workspaces, custom domains, one-click multi-client deploy
- **Pro:** Build it free before you sign up — paste a URL, get a working workspace in about 3 minutes
- **Pro:** Open core and portable — your agents are plain, editable skill files, and your data lives in your workspace
- **Con:** No funnel-builder or email-campaign suite — it's a front office, not a marketing automation platform
- **Con:** You bring your own key (Claude, ChatGPT, or Gemini, plus optional Twilio) — setup takes a few minutes
- **Con:** Newer platform — a smaller template library and community than decade-old incumbents
- **Con:** No native mobile app yet (the dashboard works fine on a phone browser)

## Why agencies & builders switch from Vapi

- **The $0.05/min isn't the real price** — Add speech-to-text, the LLM, text-to-speech, and telephony, and real calls commonly land at 5–6× the advertised hosting fee. SeldonFrame runs on your own AI and Twilio keys at raw provider cost — no per-minute platform fee.
- **It's an engineering project** — Vapi is an API. Someone has to design the agent, wire up the tools, host the logic, and fix it when an update breaks it. SeldonFrame builds a working receptionist just from a description of the business.
- **A voice agent isn't a front office** — After you build the Vapi agent, you still need the CRM, the booking calendar, the website, and the client's dashboard. SeldonFrame includes all of it in every workspace — the agent books real jobs into a real calendar.
- **Nothing to hand your clients** — Vapi has no whitelabel layer or client workspaces. SeldonFrame gives every client a branded portal your agency runs.

## Who should use Vapi vs SeldonFrame

Choose Vapi if:
1. You're an engineering team building a custom voice product
2. You need full control over each piece (custom STT/TTS pipelines, custom orchestration)
3. You have developers on staff to own setup and maintenance

Choose SeldonFrame if:
1. You want a working receptionist without the engineering project
2. Your deliverable needs to include the CRM, website, and calendar the agent books into
3. You want flat, easy-to-read per-client costs instead of stacked per-minute pieces
4. You need a whitelabel layer to hand to clients — Vapi has none

To be fair: Choose Vapi if you're an engineering team building a genuinely custom voice product and want full control over every piece of the stack.

## How to switch from Vapi to SeldonFrame

1. **Build the replacement free (3 minutes)** — Paste the business's website into seldonframe.com. SeldonFrame pulls out services, FAQs, and business facts and builds the workspace: site, CRM, booking calendar, intake, and the AI agent. No account needed until you claim it.
2. **Bring what matters over** — Your prompts and call flows carry over directly: paste your Vapi assistant's system prompt into the agent's skill file, and point your Twilio number at SeldonFrame when you're ready.
3. **Connect your keys and number** — Add your AI key (Claude, ChatGPT, or Gemini — about 30 seconds) and, for phone, connect your Twilio number so calls and missed-call text-back run at carrier cost.
4. **Test the agent, then go live** — Every agent ships with automatic tests. Talk to it, watch it book into the calendar, then publish. Point your domain over when the site's ready.
5. **Run both in parallel for a week** — Keep the old tool running while SeldonFrame answers the phones. Cancel it once the CRM shows the bookings landing — cancel-anytime on both sides means zero risk.

## FAQ

**Does SeldonFrame do real phone calls like Vapi?**

Yes. The AI receptionist answers real phone calls, plus SMS and web chat, and books straight into the workspace calendar and CRM. Connect your own Twilio number and you pay carrier rates, not marked-up platform minutes.

**I already built agents on Vapi — why switch?**

If what you're delivering to clients is a working receptionist plus the business system behind it, SeldonFrame replaces the agent AND the CRM/calendar/website you'd otherwise stitch together yourself — all in one $29/mo platform you can whitelabel.

**How can SeldonFrame be $29/mo flat when competitors charge per minute or per credit?**

Because you use your own keys. Your agents run on your own AI key (Claude, ChatGPT or Gemini) and, for phone, your own Twilio account. You pay the providers at raw cost. SeldonFrame never marks up tokens or minutes. You pay for the platform, not a meter.

**Do you take a cut of what I charge my clients?**

SeldonFrame works like Shopify: $29/mo flat, plus 2% on sales made through SeldonFrame checkout, plus 5% when you sell agents on the SeldonFrame marketplace. Client retainers you bill outside SeldonFrame cost nothing extra.

**How fast can I see it working?**

Paste in a business's website (or just describe it in a sentence). SeldonFrame builds the whole workspace — site, CRM, booking, intake, and the AI agent — in about 3 minutes. It's free, and you don't need to sign up first.

## Get started

- Start free (build the workspace in ~3 minutes, before signing up): https://www.seldonframe.com/signup
- Book a 15-minute demo: https://app.seldonframe.com/book/seldonframes-workspace-7798/default
- All comparisons: https://www.seldonframe.com/alternatives