# Callab AI

> Callab AI, built by Clusterlabs, is a cloud-based voice AI platform that connects directly to legacy on-premises PBX/SBC telephony (Cisco UCM, Mitel, FreeSWITCH) via SIP trunk integration, routing calls to AI voice agents with no rip-and-replace migration. It automates up to 70% of inbound and outbound call volume across support, sales, and scheduling. A Y Combinator Spring 2026 company founded in 2024.

This llms.txt was generated by the API Evangelist enrichment pipeline from the Callab AI public surface and the catalog record; it is not published by Callab AI. The public API reference is gated behind an access code and no public OpenAPI specification was available at generation time.

## APIs

- [Callab AI API](https://docs.callab.ai/api-reference/introduction): REST API for programmatic control of voice agents and calls; served from https://api.callab.ai. Reference gated behind an access code.

## Docs

- [API Reference](https://docs.callab.ai/api-reference/introduction): REST API introduction and reference (access-code gated).
- [Developer Docs](https://docs.callab.ai): Mintlify-hosted documentation portal.
- [Blog](https://callab.ai/blog): Company blog.
- [Terms of Service](https://callab.ai/terms-of-service/non-eaa): Non-EEA terms of service.
- [Book a Demo](https://callab.ai/book-meeting): Sales and support contact.

## Agents

- [MCP Server](https://docs.callab.ai/mcp): Hosted, OAuth-protected docs-search MCP server (scope mcp:search).

## Artifacts

- [Well-Known index](well-known/callab-ai-well-known.yml)
- [MCP server](mcp/callab-ai-mcp.yml)
- [Conformance](conformance/callab-ai-conformance.yml)
- [Domain security](security/callab-ai-domain-security.yml)