aid: hallo name: Hallo description: >- Hallo is an AI-powered language assessment and language-learning company backed by Battery Ventures. Its enterprise platform delivers automated, AI-driven proficiency assessments across speaking, writing, listening, and reading in 80+ languages, with CEFR-aligned scoring, detailed feedback (fluency, vocabulary, grammar, pronunciation, coherence), real-time score reports and dashboards, and proctoring / anti-cheating for high-stakes hiring, placement testing, and employee development. Hallo integrates with major applicant-tracking systems (Greenhouse, Ashby, Workday, SmartRecruiters, Lever, SuccessFactors, Recruitee, and others) and runs assessments across 160+ countries, with a stated SOC 2 Type 2, ISO 27001, GDPR, and EU AI Act compliance posture. The company also operates a consumer language-learning app with AI tutors and native-speaker practice. Hallo does not publish a public developer API or OpenAPI specification; its integration surface is delivered through prebuilt ATS connectors and enterprise onboarding rather than a self-serve developer portal. url: https://raw.githubusercontent.com/api-evangelist/hallo/refs/heads/main/apis.yml 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://www.hallo.ai/wp-content/uploads/Hallo@3x.png x-type: company x-source: vc-portfolio x-backed-by: - battery-ventures x-tier: stub x-tier-reason: portfolio-lead specificationVersion: '0.20' created: '2026-07-17' modified: '2026-07-19' tags: - Company - Language Assessment - Language Learning - Artificial Intelligence - Recruiting - Human Resources - Education - Speech Recognition apis: [] common: - type: DomainSecurity url: security/hallo-domain-security.yml - type: Website url: https://www.hallo.ai/ - type: Pricing url: https://www.hallo.ai/pricing/ - type: SignUp url: https://www.hallo.ai/demo/ - type: TermsOfService url: https://www.hallo.ai/terms-of-service/ - type: PrivacyPolicy url: https://www.hallo.ai/privacy-policy/ - type: Blog url: https://www.hallo.ai/blog/ - type: Support url: https://www.hallo.ai/contact/ - type: Integrations url: https://www.hallo.ai/integrations/ - type: LinkedIn url: https://www.linkedin.com/company/hallo. - type: Conformance url: conformance/hallo-conformance.yml - type: Compliance url: conformance/hallo-conformance.yml 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