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Mass lets software and AI agents operate real companies end-to-end through auditable API calls, from formation and governance to treasury, licensing, ownership, and compliance.
Compliant by default: the Mass runtime only allows legal and compliant operations. Mass connects to MCP-compatible agents such as Claude Code and Codex.
MCP developer docsAn agent turns a plain-English request into a jurisdiction-aware Mass operation plan.
Regulated actions stay behind Mass permissions, policy checks, and human approval where required.
Completed operations produce receipts, proofs, and compliance context that can be audited later.
Empower your agents with compliant-by-default surfaces, policies to operate under, and a ledger of what is done. Nine example domains.
Incorporation, dissolution, mergers, jurisdiction harboring.
Cash management, payroll, vendor payments, reserve investment.
Continuous re-evaluation of combined compliance as rules change.
Cross-jurisdiction transfers routed through the best corridor.
Ownership, issuance, vesting, transfers, options.
Per-jurisdiction tax posture, computation, and filing.
Regulatory disclosures produced and filed on schedule.
Records, notices, consents, archives of governance events.
Authoritative cap table, financials, and updates to named holders.
Every operation decomposes into one of five primitives. Agents compose them into institutional work. You direct the composition in plain English.
Companies, trusts, funds, SPVs. Form them, dissolve them, move them between jurisdictions by asking.
›form a Delaware C-Corp named Chamak Labs, directors me and Priya.
Cap tables, options, vesting, transfers. One ledger per entity, authoritative for everyone who needs it.
›issue 100 options to Sarah Kim on our standard plan.
Money, payroll, invoices, books, tax. The cash side of your business, under agents you audit.
›run April payroll for three US employees, net to their banks.
Know your people, counterparties, and holders. Verified once, consulted everywhere the rules demand.
›verify Priya Shah as a director under Singapore ACRA.
Board approvals, shareholder votes, signed policies. Governance events with cryptographic timestamps.
›open a written consent for the $500k SAFE from A16Z.
mass.entities.*·mass.ownership.*·mass.fiscal.*·mass.identity.*·mass.consent.*Every operation Mass performs produces a cryptographic proof. You audit what your agents did. Your counterparty verifies what you did. Your regulator sees what was done under the rules in force at that moment.
Drive Mass from any agent runtime. SDKs in TypeScript, Python, and Go. Claude Code and Codex connect to the same Mass-MCP runtime surface.
For founders who would rather describe what their company should do than configure twelve tools to do it.
Complete zone infrastructure — entity formation, banking, compliance, licensing — operational in 90 days. Your authority stays. Your fee schedules stay. Every entity you form connects to 13+ jurisdictions on day one.