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AI Agent API | SignalWire

Ship Production-Grade AI Voice Agents

Create real-time agents that manage live conversations, trigger logic mid-call, scale automatically, and integrate live data with ~500ms latency.

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~500ms Round Trip Latency with AI in the Loop

Architect AI agents directly within the media and signaling layers. No external detours. Native integration ensures sub-second round trips.

Build Voice AI in Python

Use the OSS Agents SDK to run real-time Python-based voice agents. Trigger API calls mid-session, route by intent, and respond with live data. Run everything from a single Python service.

Own your Telecom Stack

Control PSTN, SIP, WebRTC, and SMS via programmable APIs. Define how communications work without carrier lock-in or glue code.

High-Concurrency, Low-Latency Cloud

Run agents locally, in containers, or serverlessly. Scale seamlessly without rewriting. Sub-500ms latency, high call quality, and built-in failover.

SignalWire is Trusted by Industry Leaders

Amperos Health
Sprinkler
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Phoenix Children's Hospital

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AI IVR

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AI Support Agents

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Context Aware Call Forwarding

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AI Powered Contact Centers

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Why SignalWire is Different

Other platforms are not designed for real-time, AI-driven voice workloads. SignalWire integrates speech recognition, synthesis, and LLM orchestration directly into the media stack, avoiding the latency, context switching, and concurrency issues of external components. Instead of chaining STT, TTS, SIP signaling, IVRs, and webhooks, SignalWire provides a unified runtime for low-latency, production-grade AI agents.

Everything You need to Build Real-Time Voice Agents

From transcription and translation to live data access and memory, SignalWire’s Agent SDK gives you full control. No telecom setup or glue code required.

Live_Transcribe & Live_translate
Live_Transcribe & Live_translate

Convert speech to text instantly during live conversations to enable visibility, compliance, and downstream automation.

Multi-Agent Architecture
Multi-Agent Architecture

Host multiple agents on a single serve. Transfer callers between them with context intact.

Live Backend Integration
Live Backend Integration

Call external APIs mid-conversation to fetch data, trigger actions, or update systems without using webhooks or glue code.

Knowledge Retrieval
Knowledge Retrieval

Pull accurate answers from vectorized PDFs, wikis, or structured docs to ground agent responses and reference company level information.

Native Telecom
Native Telecom

Native support for SIP, PSTN, WebRTC, and SMS with no need to configure carriers or media servers

Modular Agent Logic
Modular Agent Logic

Compose agent behavior using reusable tools, skills, and contexts. Add or swap logic without rewriting your app.

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Experience AI with SignalWire

Build AI voicebots that can automate higher value tasks, with far less latency and DevOps required.