Callab AI

aid: callab-ai
name: Callab AI
url: https://raw.githubusercontent.com/api-evangelist/callab-ai/refs/heads/main/apis.yml
kind: company
description: 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. The platform automates up to 70% of inbound and outbound call volume across support, sales, and scheduling, with
  no-code agent building, live human supervision and takeover, semantic knowledge bases, post-call transcription and sentiment
  analysis, CRM data extraction, and batch outbound campaigns. Callab AI exposes a REST API at docs.callab.ai for programmatic
  control of agents and calls. A Y Combinator Spring 2026 company founded in 2024, it serves hospitality, logistics, retail,
  and property management across three continents.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://framerusercontent.com/images/FI3habKVoti5uJ32Q7ktHORE8U.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
x-legal-entity: Clusterlabs
x-yc-batch: Spring 2026
x-founders:
- Haithem Kchaou
- Chehir Dhaouadi
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Voice AI
- Conversational AI
- Telephony
- Contact Center
- SIP
- Voice Agents
- Call Automation
- PBX
- Customer-Support
- AI Agents
tags_raw:
- Voice AI
- Conversational AI
- Telephony
- Contact Center
- SIP
- Voice Agents
- Call Automation
- PBX
- Customer Support
- AI Agents
apis:
- aid: callab-ai:api
  name: Callab AI API
  description: Callab AI's REST API, documented at docs.callab.ai/api-reference, is organized around REST principles with
    predictable resource-oriented URLs, standard HTTP verbs, and standard HTTP response codes for programmatic control of
    voice agents and calls. The public API reference is currently gated behind an access code; the API is served from api.callab.ai.
    No public OpenAPI specification is published as of this enrichment pass.
  image: https://framerusercontent.com/images/FI3habKVoti5uJ32Q7ktHORE8U.png
  humanURL: https://docs.callab.ai/api-reference/introduction
  baseURL: https://api.callab.ai
  tags:
  - Voice AI
  - Telephony
  - Voice Agents
  - Call Automation
  - REST
  properties:
  - type: Documentation
    url: https://docs.callab.ai/api-reference/introduction
  - type: APIReference
    url: https://docs.callab.ai/api-reference/introduction
common:
- type: Website
  url: https://callab.ai
- type: DeveloperPortal
  url: https://docs.callab.ai
- type: Documentation
  url: https://docs.callab.ai/api-reference/introduction
- type: APIReference
  url: https://docs.callab.ai/api-reference/introduction
- type: Blog
  url: https://callab.ai/blog
- type: TermsOfService
  url: https://callab.ai/terms-of-service/non-eaa
- type: SignUp
  url: https://app.callab.ai
- type: Login
  url: https://app.callab.ai
- type: Support
  url: https://callab.ai/book-meeting
- type: LinkedIn
  url: https://www.linkedin.com/company/callabai
- type: Twitter
  url: https://x.com/callab_ai
- type: Conformance
  url: conformance/callab-ai-conformance.yml
- type: Compliance
  url: https://callab.ai
- type: DomainSecurity
  url: security/callab-ai-domain-security.yml
- type: WellKnown
  url: well-known/callab-ai-well-known.yml
- type: MCPServer
  url: https://docs.callab.ai/mcp
  name: Callab AI Docs MCP Server
  description: Hosted, OAuth-protected docs-search MCP server (scope mcp:search).
- type: LLMsTxt
  url: llms/callab-ai-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence