Retell AI
BetaLatency-obsessed (~580ms). Strong in regulated industries.
Voice AI platform built around low latency (~580 ms) and structured-data extraction. Heavily used in healthcare and other regulated industries.
- Category
- Voice agent platforms
- Runtime
- Managed SaaS — nothing to install
- Pattern
- LLM proxy
- Adapter package
- None — configured on the Intramedial side
Status
Retell AI is Beta.
The integration path is built and tested. Customers can attach now; expect minor breaking changes until the 1.0 contract freeze.
How to attach
LLM proxy.
Issue a workspace API key
Generate a key in the dashboard under Settings → API Keys, scoped to the workspace and environment this agent's data should land in.
Change one base URL
Point Retell AI's LLM base URL at the Intramedial proxy. Intramedial records the request and forwards it to the real provider — OpenAI-, Anthropic- and Gemini-compatible schemas are all supported.
Verify
Trigger one agent run. The Witness page shows the record once the agent has emitted it.
What gets recorded
3 event types, captured today.
- agent.invocation
- Every top-level agent run — the input, the resolved output, timing and token usage.
- tool.call
- Each tool or function the agent invokes, with its arguments and returned result.
- channel.message
- Messages sent and received over the agent's channels (Telegram, Slack, Discord, …).
Same category
Others in Voice agent platforms.
- VapiBeta
Provider-agnostic orchestration. 62M calls/month, 99.99% SLA.
- Bland AIBeta
Outbound at extreme scale. 1M+ concurrent calls.
- SynthflowBeta
No-code voice agent builder. GDPR.
Voice-quality leader. Sub-100ms TTS. IBM watsonx partnership.
ASR leader's bundled voice agent product. Noisy-environment strength.
- LiveKit AgentsBeta
Open-source agent SDK from LiveKit. Pluggable STT/LLM/TTS.
Start recording Retell AI agents.
Every Retell AI run lands in the same canonical Witness record as every other framework in the catalogue: signed, replayable, and exportable as evidence.
Agents act when the plane says yes, and the record says why.
Put admission in front of your MCP servers, repositories, SaaS tools and cloud accounts. Every agent gets a lease or a reason – and you keep the lever to stop any of them.
