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.
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: '0.20'
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
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