LegalOn
LegalOn Technologies is a legal-technology company building AI software for in-house legal teams, corporate legal operations, and law firms. Its platform covers AI contract review and redlining, contract playbooks, matter management, a contract data vault, translation, entity and board management, and agentic legal workflows, with a Microsoft Word integration for reviewing agreements in place. Founded in Japan as LegalForce and now operating in both Japan (legalontech.jp) and the United States (legalontech.com), the company runs a sibling product family for governance (GovernOn), sales (DealOn), HR (WorkOn), and marketing compliance (DocumentOn). LegalOn publishes a REST API for contract files and contract metadata — upload, retrieve, update and delete contract documents, register and update contract information such as counterparties and contract types, link related documents, and list registered contracts — authenticated with OAuth 2.0 client credentials, intended for integration with contract management systems, CRM, and BI tooling. The API is announced publicly but its reference documentation is not published on the open web; access is arranged through the vendor. The company is backed by Hongshan and the SoftBank Vision Fund, and publishes SOC 2 Type II, ISO/IEC 27001:2022 and ISO/IEC 27017:2015 certifications through a public trust center.
LegalOn publishes 1 API on the APIs.io network. Tagged areas include Company, Technology, Legal, Legal Technology, and Contracts.
LegalOn’s developer surface includes engineering blog, pricing, changelog, support, authentication, and 20 more developer resources.
Kin Score
APIs 1
Individual APIs this provider publishes, each with its own machine-readable definition.
LegalOn Contract API
REST API for the LegalOn contract platform. Documented capabilities cover contract file operations (upload, retrieve, update, delete), contract information management (register ...
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Get Started 1
Portal, sign-up, and the first successful call
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 3
Pagination, idempotency, versioning, errors, and events
Access & Security 6
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 5
The organization behind the API
Other 1
Properties that don't map to a standard resource type