Qiyuesuo (契约锁) is a Chinese electronic signature and contract management platform with AI-assisted drafting, review and archiving.
契约锁 lets Chinese organizations sign and manage contracts electronically with legally valid digital signatures and trusted timestamps. Beyond e-signature, its AI features assist with contract drafting from templates, clause risk review and structured archiving that makes every agreement searchable. Approval workflows mirror internal authority rules, and seals are managed with the control enterprises expect from physical chops. The platform serves finance, manufacturing and government clients with on-premises deployment options.
Qiyuesuo is sold through enterprise agreements with pricing by module, signature volume and deployment model.
Chinese enterprises and institutions that need e-signature and contract lifecycle management with local compliance and deployment control.
Enterprises run sales contracts and procurement agreements through electronic approval and sealing without paper circulation. HR signs employment and confidentiality agreements at scale with archived, searchable records.
Register enterprise certification, configure seal and approval authority rules, then pilot with one contract type before integrating with your OA or ERP system.
No — it is enterprise software; trials are arranged with the vendor.
Yes — open APIs integrate signing into business systems and e-commerce flows.
Versus 法大大 and e-sign宝, Qiyuesuo competes on contract lifecycle depth and private deployment support.
Yes — signatures use licensed CA certificates and trusted timestamps compliant with China’s Electronic Signature Law, with evidence packages for dispute scenarios.
Private deployment options suit organizations with data sovereignty requirements, including finance and government sectors.
Finance, manufacturing, real estate and government organizations that manage high contract volume with strict sealing and approval requirements.
Yes — multi-party workflows with sequential or parallel signing cover complex agreements across internal and external stakeholders.
Legacy agreements can be imported into the searchable archive, centralizing historical records alongside new electronically signed contracts.
Finance, real estate, manufacturing and government lead adoption given their heavy sealing and approval requirements.
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