Tuum
Tuum is a cloud-native, modular core banking platform that lets banks, fintechs, and other financial institutions launch and modernise financial products without legacy constraints. Its API-first platform is organised into independent modules — accounts, payments, cards, lending, deposits, and more — covering Banking-as-a-Service, payments processing, lending, and Islamic banking. Developers integrate over per-module REST APIs (auth-api, person-api, account-api, payment-api, card-api, loan-api, deposit-api, notification-api), authenticating with a JWT presented in the x-auth-token header (with a standards OAuth 2.0 authorization server also available), and receive near-real-time events via the Notification API's webhooks. Founded in Estonia (formerly Modularbank), Tuum is backed by investors including Speedinvest.
Tuum publishes 1 API on the APIs.io network. Tagged areas include Company, Core Banking, Banking as a Service, Payments, and Lending.
The Tuum catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Tuum’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, authentication, sandbox, and 12 more developer resources.
Kin Score
APIs 1
Individual APIs this provider publishes, each with its own machine-readable definition.
Tuum Core Banking API
Tuum's modular, API-first core banking platform. Per-module REST APIs (auth, person, employee, account, payment, card, loan, deposit, data-import, notification) versioned indepe...
Event Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Tuum Notification Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Access & Security 2
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API