For Builders
Programmable legal entities, businesses, and institutions
Incorporate, comply, bank, verify identity, manage consent, and submit authored programs — across jurisdictions, through one developer surface. Mass exposes proof-shaped APIs, SDKs, and MCP tools so your agents can operate wherever the network reaches.
typescript
import Mass from '@mass/primitives';
const mass = new Mass({ token: process.env.MASS_TOKEN });
// Delaware LLC — 47 seconds
const company = await mass.entities.incorporate({
zone: 'us-de',
type: 'llc',
name: 'Meridian Dynamics LLC',
beneficial_owners: [{
identity_id: 'id_01HZQ3',
ownership_pct: '100.00'
}]
});
// Every write returns an OrchestrationEnvelope:
company.entity_id; // ent_01HZQ3...
company.compliance.overall; // Compliant (23/23 domains)
company.credential.proof; // Ed25519Signature2020
company.passport_digest; // sha256:7a3f9b2e...
// Same API. Abu Dhabi. Different law, same interface.
const adgmCo = await mass.entities.incorporate({
zone: 'ae-adgm',
type: 'private_limited',
name: 'Meridian Capital ADGM Ltd',
beneficial_owners: [{ identity_id: 'id_01HZQ3', ownership_pct: '100.00' }]
});
// ADGM Companies Regulations 2020 — trade license, data protection, FSRA
// Same compliance envelope. Different lawpack. Identical SDK call.