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Yappr API

Yappr lets you create AI voice agents that speak naturally over the phone — no telephony infrastructure required. Point an agent at a phone number and it handles calls autonomously, captures information, and fires webhooks to your systems.

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What you can build

Outbound calling

Automate outreach — sales calls, appointment reminders, lead qualification — at scale.

Inbound reception

Give your business a 24/7 AI receptionist that qualifies callers and routes them intelligently.

Data collection

Capture structured data from calls (names, order numbers, preferences) and send it to any webhook.

Webhook integrations

Connect calls to your CRM, helpdesk, or internal tools with real-time webhooks fired mid-call.

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How it works

Your code → POST /calls → Yappr dials the number → AI agent speaks → Webhook fires with call data
  1. Create an agent — write a system prompt that defines the agent’s persona and goal
  2. Attach tools — configure webhooks to capture and forward data during the call
  3. Buy a number — get an Israeli phone number for inbound or outbound use
  4. Make calls — trigger outbound calls via the API, or let the number receive inbound calls automatically

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Base URL

https://api.goyappr.com
All endpoints accept and return JSON. Authenticate using an API key in the Authorization header.

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Authentication

Authorization: Bearer ypr_live_...
Generate API keys in the Yappr dashboard under Settings → API Keys.

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Next steps

Quickstart

Create your first agent and make a call in under 5 minutes.

API Reference

Full reference for all endpoints, parameters, and responses.