ElevenLabs, Vapi, Bland
- Workflows layer on top of a base agent. Composition is a feature you configure, not the unit you build from.
- Integrations are yours to wire and maintain — the LOS connection, the KYC vendor, the secure-upload link, the auth, the retries.
- Test coverage is on you. There's no per-step test suite that comes with the agent. No TCPA / ECOA / FDCPA guardrails out of the box.