Introduction
Build voice and text AI agents that answer real phone calls.
We handle the complex voice engineering. You focus on creating remarkable voice
experiences.
Ready to meddle?
What a voice agent can do
- Hold a real conversation, including being interrupted, corrected and talked over
- Answer a phone number you provision on the platform, or one you already own
- Read and write to your systems while the caller is still on the line
- Book meetings, send texts, search a knowledge base, hand the call to a person
- Take calls and messages from a widget on your website
What happens on a call
Three things run in a loop for as long as the caller is talking.
- Speech recognition turns the caller's audio into words while they speak, rather than waiting for a pause.
- A language model reads your prompt, the conversation so far and the tools available right now, then decides whether to say or do something.
- Speech synthesis reads the reply back down the line, and stops the instant the caller speaks again.
The parts of the loop you control are the prompt, the tools, the voice and the model. The parts you do not have to think about are turn-taking, interruption, echo, retries and failover.
The shape of an agent
An agent is one language model, one system prompt and a flat list of tools.
There is no call-flow diagram to draw. Why that shape holds up on real calls is argued in Core concepts.
Ordering still matters. A tool can name prerequisites, and until those prerequisites succeed the tool is hidden from the model entirely. You get sequencing without a flow.
Where to start
If this is your first agent, read the getting started guide. It walks the whole path from creating an account to taking a live call on a real number. No coding required.
If you want to know what runs when a call arrives and in what order, read Architecture.
What lives here
- Platform: what Meddle is, the getting started journey, core concepts, and the models behind a call.
- Build: authoring an agent, its prompt, tools, knowledge and voice.
- Operate: going live on a number, measuring quality, and running the workspace day to day.
- API: reference for the endpoints the browser application calls. For driving Meddle from your own code, see Programmatic access.
- Trust: security, access control, privacy, data residency, compliance and reliability. What the platform protects, what it does not offer, and where call data goes.
How calls are billed
Calls are charged per minute of audio, counted from when the caller connects to when they hang up. The rate is composed rather than flat: the model's own rate, plus transcription, plus speech synthesis, all on one invoice. Each phone number you hold is charged a fixed monthly rental.
The full breakdown lives in your workspace under Plan and usage, and in Billing.