# Best Vapi Alternative for Agencies & Builders

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

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

## 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 speech-to-text, the LLM, text-to-speech and telephony stack on top — and despite the no-code framing, most real implementations require actual coding to set up and maintain. HIPAA alone is a $2,000/mo add-on. And after all that, you still have no CRM, no calendar and no client dashboard — just a voice agent that needs a business system built around it.

That's not to say Vapi isn't impressive — for engineering teams that want full control over every component of a custom voice stack, it's one of the most flexible platforms there is, with a bring-your-own-API-key option and a big developer community. But agencies deploying receptionists for 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 | $29/mo flat — unlimited workspaces, no per-feature add-ons |
| AI receptionist (calls, SMS, chat) | Voice agents only — you design, integrate 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 | BYO API key possible, but every other component still meters 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) |

## Pros & cons

### Vapi

- **Pro:** Component-level control over the whole voice stack (STT/LLM/TTS choice)
- **Pro:** BYO-API-key option removes markup on model costs
- **Pro:** Large developer community and ecosystem
- **Pro:** SOC 2 / HIPAA / PCI options for enterprise builds
- **Con:** Real-world cost ~$0.25–$0.33/min — 5–6× the advertised $0.05 hosting fee
- **Con:** Most real implementations require actual coding despite the no-code framing
- **Con:** Support and documentation complaints; agents breaking after platform updates
- **Con:** Voice-only — no CRM, website, booking calendar or client dashboard

### SeldonFrame

- **Pro:** 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 — BYOK means AI and telephony 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 the working workspace in ~3 minutes
- **Pro:** Open core and portable — your agents are plain editable skill files, 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:** Bring-your-own-key setup (Claude/ChatGPT/Gemini + optional Twilio) takes a few minutes
- **Con:** Newer platform — smaller template ecosystem and community than decade-old incumbents
- **Con:** No native mobile app yet (the dashboard is mobile-responsive)

## Why agencies & builders switch from Vapi

- **The $0.05/min isn't the real price** — Stack speech-to-text, the LLM, text-to-speech and telephony and real calls commonly land 5–6× the advertised hosting fee. SeldonFrame runs on your own AI and Twilio keys at raw provider cost — no per-minute platform meter.
- **It's an engineering project** — Vapi is an API. Someone has to design the agent, wire the tools, host the logic and fix it when a platform update breaks it. SeldonFrame generates a working receptionist 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 them 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 operates.

## Who should use Vapi vs SeldonFrame

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

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

To be fair: Choose Vapi if you're an engineering team building a genuinely custom voice product and want component-level control over the whole stack.

## How to switch from Vapi to SeldonFrame

1. **Build the replacement free (3 minutes)** — Paste the business's website into seldonframe.com — SeldonFrame extracts services, FAQs and business facts and generates 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 translate 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 — ~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 auto-evals; talk to it, watch it book into the calendar, then publish. Point your domain when the site's ready.
5. **Run both in parallel for a week** — Keep the old tool alive while SeldonFrame answers the phones. Cancel when 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 directly into the workspace calendar and CRM. Connect your own Twilio number and you pay carrier rates, not platform-marked-up minutes.

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

If your deliverable to clients is a working receptionist plus the business system behind it, SeldonFrame replaces the agent AND the stitched-together CRM/calendar/website around it with one $29/mo platform you can whitelabel.

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

Because you bring your own keys. Your agents run on your own AI provider key (Claude, ChatGPT or Gemini) and, for phone, your own Twilio account — so you pay providers at raw cost and SeldonFrame never resells tokens or minutes with a markup. The subscription is the platform, not a meter.

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

SeldonFrame follows the same principle as Shopify: the platform is $29/mo flat, plus 2% on sales processed through SeldonFrame checkout, and 5% when you sell agents through the SeldonFrame marketplace. Client retainers you invoice outside SeldonFrame carry no fee at all.

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

Paste a business's website (or describe it in a sentence) and SeldonFrame builds the whole workspace — site, CRM, booking, intake and the AI agent — in about 3 minutes, free, before you ever sign up.

## Get started

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