- Preis
- variiert
- Bauzeit
- ein Wochenende
A focused inbound agent is a credible weekend build with LiveKit Agents or Pipecat. Replacing Vapi as a product is much larger: it combines realtime orchestration, provider abstraction, phone-number and SIP workflows, outbound campaigns, tool calls, testing, observability, scaling, support, and compliance options. Self-hosting can remove Vapi's $0.05 per-minute platform fee, but model, carrier, number, infrastructure, failed-call, monitoring, and engineering costs remain.
Der Moat
Ein Moat ist der Burggraben um ein Produkt: alles, was ein Nachbau nicht einfach mitkopieren kann, etwa Nutzer, Daten, Verträge oder Vertrauen. Je tiefer der Graben, desto eher lohnt sich das Abo trotz KI-Agent.Was Vapi schwer vollständig ersetzbar macht
Infrastruktur
Globaler Betrieb und hohe Verfügbarkeit sind schwer selbst zu tragen.
Integrationen
Viele Schnittstellen brauchen OAuth, Pflege und zuverlässige Synchronisierung.
Der Prompt
Build me a focused, self-hosted alternative to Vapi for one inbound support number. Requirements: - Use Python 3.12 and livekit-agents~=1.5 with one named AgentServer worker. Use direct provider plugins, not LiveKit Inference or another managed agent host. - Run LiveKit Server, Redis, and LiveKit SIP with Docker Compose on one Ubuntu VM. Put Caddy in front of HTTPS/WSS; expose only the documented SIP and UDP media ports. - Provision one Telnyx DID and credential-authenticated SIP trunk. Include checked-in LiveKit inbound-trunk and dispatch-rule JSON that sends calls to support-agent. - Build an AgentSession with Silero VAD, Deepgram Nova-3 STT, gpt-5-mini through the OpenAI plugin, and Cartesia Sonic-3 TTS. Load every secret from .env. - Give the agent one narrow support prompt, interruption handling, and two tools: look up an order in SQLite and save a callback request after caller confirmation. - Persist call id, timestamps, transcript, tool results, and outcome to SQLite. Add structured JSON logs and /healthz; recording is off by default. - Include unit tests for both tools and scripted agent tests for lookup, refusal to invent an order, callback confirmation, and a caller interruption. - Provide make setup, make dev, make smoke, and docker compose up -d commands. The smoke test must work in the LiveKit agent console before a real PSTN call. - README: DNS, TLS, firewall, Telnyx, trunk, dispatch, provider-key, and test-call steps, plus common one-way-audio and SIP authentication checks. - The cost section must say the Vapi fee is removed, while the DID, SIP minutes, model usage, VM, failed calls, monitoring, and operator time remain. Link the source-backed calculator at https://voice.oss.codes for changing rates. - Out of scope: outbound campaigns, a multi-tenant dashboard, squads, billing, automatic provider failover, call recording, compliance claims, and high availability.
Lies, was Entscheider lesen.
Jeden Sonntag das Wichtigste aus der KI-Welt. Kompakt, verständlich, praxisnah. Schließe dich über 4.500 Lesern an.
100 % kostenlos. Jederzeit mit einem Klick abmeldbar.
Was du verlierst
- managed realtime infrastructure, scaling, provider failover, and support
- assistant, squad, workflow, phone-number, and provider configuration APIs
- outbound campaigns, carrier integrations, spam mitigation, and production telephony debugging
- hosted simulations, evaluations, call logs, recordings, analytics, and retention controls
- enterprise SLAs, compliance add-ons, role controls, and data-residency options
Warum Leute trotzdem zahlen
They pay to move from a working voice demo to dependable production calling without operating SIP, RTP, WebRTC, agent workers, provider fallbacks, observability, and capacity themselves.
Für den Eigenbedarf reicht der Eigenbau oben meistens.
Die Zahlen
| Plan | Monatlich | Jährlich (pro Monat) | Enthalten |
|---|---|---|---|
| Build | 0 € / flat | n. a. | At least 60 promotional call minutes at signup and 10 concurrent calls; ongoing calls are fully usage based. |
| Scale | n. a. / flat | n. a. | Custom annual usage commitment, concurrency, support and volume terms. |
- Gratis-Version
- no permanent free tier; signup includes a promotional allowance of at least 60 call minutes
- Abrechnung
- usage based with no base subscription for Build; Scale uses a custom annual commitment
- Versteckte Kosten
- Voice calls add a $0.05/minute Vapi platform fee plus separate speech-to-text, model, text-to-speech and telephony charges; SMS/chat is $0.005/message; extra concurrency is $10/line/month; HIPAA is $2,000/month and zero-data-retention is $1,000/month.
Geprüft am 31.07.2026 · Quelle · aus USD umgerechnet, der EUR-Preis beim Anbieter kann abweichen
Häufige Fragen
Preis, Nachbau und Ersparnis von Vapi auf einen Blick.
Was kostet Vapi?
Vapi hat keinen festen Monatspreis — die Kosten hängen von der Nutzung ab (Plan „Build", geprüft am 31.07.2026).
Kann ich Vapi mit KI selbst nachbauen?
Jein, Wochenendprojekt: A focused inbound agent is a credible weekend build with LiveKit Agents or Pipecat. Replacing Vapi as a product is much larger: it combines realtime orchestration, provider abstraction, phone-number and SIP workflows, outbound campaigns, tool calls, testing, observability, scaling, support, and compliance options. Self-hosting can remove Vapi's $0.05 per-minute platform fee, but model, carrier, number, infrastructure, failed-call, monitoring, and engineering costs remain.
Was verliere ich, wenn ich Vapi ersetze?
Beim Eigenbau verzichtest du auf: managed realtime infrastructure, scaling, provider failover, and support, assistant, squad, workflow, phone-number, and provider configuration APIs, outbound campaigns, carrier integrations, spam mitigation, and production telephony debugging, hosted simulations, evaluations, call logs, recordings, analytics, and retention controls, enterprise SLAs, compliance add-ons, role controls, and data-residency options.
Auch auf dem Prüfstand
Alle ToolsNein
ElevenLabs
Text-zu-Sprache mit erstaunlich natürlichen Stimmen, Voice Cloning und Audio-Werkzeugen.
5,50 €/Monat
Jein
Replit
Browser IDE with agents, instant apps, hosting, and deployment
21,56 €/Monat
Nein
GitHub Copilot Pro
KI-Codevervollständigung und Agent-Chat direkt in VS Code, JetBrains und auf GitHub.
9 €/Monat