Callab AI

AI calling platform for making and receiving phone calls with AI agents. Best for voice-based customer interaction workflows — outbound calling campaigns, inbound call handling, and phone-based AI assistants. Unlike Retell (voice agent infrastructure), Callab focuses on the calling platform layer with built-in agent orchestration. 2 example endpoints available through Lava’s AI Gateway. See the Callab AI API docs for full documentation.

This provider requires your own credentials — connect your API key or OAuth account before use.

This is a catch-all provider — any valid URL under https://api.callab.ai is supported. AI calling platform API. Construct URL as https://api.callab.ai/{path}. The endpoints below are curated examples.

Endpoints

Make a phone call

POST https://api.callab.ai/calls — Free / request

SDK
cURL

const data = await lava.gateway('https://api.callab.ai/calls', { body: {"agent_id":"agent_123","to":"+15555550123"} });

curl -X POST "https://api.lava.so/v1/forward?u=https%3A%2F%2Fapi.callab.ai%2Fcalls" \
  -H "Authorization: Bearer $LAVA_SECRET_KEY" \
  -H "Content-Type: application/json" \
  -d '{"agent_id":"agent_123","to":"+15555550123"}'

Create an AI agent

POST https://api.callab.ai/ai-agents — Free / request

SDK
cURL

const data = await lava.gateway('https://api.callab.ai/ai-agents', { body: {"name":"Support Agent","template_id":"tmpl_123"} });

curl -X POST "https://api.lava.so/v1/forward?u=https%3A%2F%2Fapi.callab.ai%2Fai-agents" \
  -H "Authorization: Bearer $LAVA_SECRET_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name":"Support Agent","template_id":"tmpl_123"}'

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Make a phone call

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Endpoints

Make a phone call

Create an AI agent

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