Production MCP for teams with real APIs and real customers.
Frege is strongest when the starting point is an API you already operate. These are the patterns where versioning, docs, access control, org credentials, and event-aware MCP matter most.
Fintech
Payments and financial APIs
Expose charges, refunds, invoices, transaction history, and webhook-driven events through a governed MCP surface without hand-writing adapters for every client.
Explore paymentsB2B SaaS
Multi-tenant SaaS platforms
Give every customer isolated AI access to the same shared API surface with organization-scoped credentials, branded connect flows, and delegated provisioning.
Explore SaaSEnterprise
Enterprise and regulated APIs
Ship MCP in environments that care about tenant isolation, encrypted credential storage, auditability, rollback, and explicit access boundaries.
Explore enterpriseStart with the API you already have.
Upload your spec and docs, then see how Frege turns them into a governed MCP surface you can version, secure, and share.