Headless & SDK
Every Mast capability is available as a first-class API and SDK.
Mast is API-first by design. Every product, journey, decision, document, and case is available through a clean, versioned API and a set of typed SDKs. Bring your own front end, or embed Mast surfaces into an existing digital estate, without giving up any of the platform's capabilities.
What it does.
API-first everything
There is nothing in the Mast UI that is not first available via API. No hidden capabilities, no admin-only features.
Typed SDKs
First-party SDKs in TypeScript and other common languages, with generated types and strong tooling.
Event-driven
Subscribe to case, decision, and document events via webhooks or streaming, and drive your own systems in real time.
Composable UI blocks
Optional React components for calculators, uploads, and case views, drop-in for teams that want to move fast.
MCP-ready
Model Context Protocol support is on the roadmap, so agents can operate on Mast under the same policy guardrails and audit trail as the rest of the platform.
Sandbox and versioning
Isolated sandboxes, versioned APIs, and clear deprecation windows so you can build with confidence.
Where it fits.
Embedding lending journeys inside a broader banking app
Building bespoke broker or partner front ends on Mast's engines
Wiring Mast into an existing digital estate without a UI rewrite
Powering AI agents and automations over lending workflows (MCP planned)
Plays well with the stack.
Your own web and mobile apps
Partner platforms, aggregators, and comparison sites
Agent frameworks and orchestration tooling (MCP on the roadmap)
What good looks like.
Design the customer and broker experience exactly the way you want.
Reuse the same engines across every channel and every product.
New surfaces, including agents, land on the same APIs as everything else.
See Headless & SDK in action
Walk through your workflow with the team and see how it fits.
Get in touch