Build AI voice into your product

REST API. Webhooks. SDKs for React, Node, Python. Open docs. Free tier.

curl example

curl -X POST https://app.webcallhub.com/api/v1/agents \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Acme Receptionist",
    "type": "receptionist",
    "language": "en",
    "voice": "warm-professional",
    "knowledge_base_url": "https://acme.com/help",
    "escalation_rules": {
      "to_human_on": ["billing", "legal", "frustrated"]
    }
  }'

SDKs & integrations

REST API

Full CRUD on agents, calls, transcripts, analytics. OpenAPI 3.0 spec.

/api/v1/agents
/api/v1/calls
/api/v1/transcripts
/api/v1/analytics

Webhooks

Real-time events. Sign-verified. Retry-with-backoff. Custom event filters.

call.started
call.ended
call.summary_ready
lead.qualified

React / Node / Python SDKs

Open-source. Typed. Tree-shakeable. Examples in our GitHub.

npm i @webcallhub/sdk
pip install webcallhub

Generous free tier

100 req/min

Rate limit on free tier

30 AI minutes/mo

Free across all features

No credit card

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