Let a voice receptionist schedule appointments via MCP
As described in the source, the commenter's team runs a custom MCP server exposing tools such as list_appointments, schedule_appointment and cancel_appointment against their CRM. An ElevenLabs voice agent, which covers speech-to-text, the LLM and text-to-speech, connects to it over a Twilio phone line. The source is a short explanatory comment and reports no results, numbers or shortcomings.
- Agent or tool
- Custom agent
- Topic
- DevOps & Infra
- Reported on
- Hacker News
- Added
- 2026-10-15
Why it matters
Keeping servers and pipelines healthy is constant, detail-heavy work. Agents that can read logs and run routine fixes are a big help, as long as a person keeps an eye on what changes. It is one of 40 sightings filed under DevOps & Infra on Agent Sightings (number 35 by interest), and one of 182 involving Custom agent.
How you could try it
Here is a reusable prompt, written by us in our own words, that captures the task. Paste it into your own agent or any similar agent and adjust the details to your situation.
Infra task — let a voice receptionist schedule appointments via MCP. Inspect current config, propose a diff, and wait for approval before applying or restarting anything.
Tip: Try it first on a staging system or with read-only credentials, and require approval for anything that changes production.
Source
Read the original first-hand account on Hacker News: https://news.ycombinator.com/item?id=49560285. Our summary is a paraphrase; details are in the source.