Developer Portal

Comprehensive documentation, auto-generated SDKs in 5 languages, and real-time observability — the intelligence hub that empowers developers to build effectively against Monument's 78 APIs.

Doc Pages178

SDK Languages5

Code Examples240+

Tutorials12

API Reference — 10 Sections · 178 Pages · 78 Endpoints

Authentication & Security4 endpoints

OAuth 2.0 / FAPI 2.0 flows, API key management, mTLS setup, and token lifecycle

18 pages

Customers & Identity10 endpoints

Customer onboarding, KYC/AML verification, document management, and PEP screening

22 pages

Accounts & Deposits10 endpoints

Account lifecycle, balance queries, statements, interest accrual, and 10 deposit products

28 pages

Payments & Transfers18 endpoints

FPS, CHAPS, SWIFT, and SEPA payment rails with real-time tracking and scheduling

32 pages

Lending & Mortgages15 endpoints

Loan origination, mortgage applications, repayment schedules, and affordability checks

24 pages

Cards11 endpoints

Virtual and physical card issuance, spending controls, PIN management, and 3DS

20 pages

Webhooks & Events4 endpoints

38 event types with HMAC-SHA256 signatures, retry policies, and event replay

14 pages

Error Handling

7 error types, structured error objects, retry strategies, and idempotency patterns

8 pages

Pagination & Filtering

Cursor-based pagination, field expansion, sparse fieldsets, and date range queries

6 pages

Rate Limiting & Quotas2 endpoints

Per-key and per-endpoint limits, burst allowances, and quota management APIs

6 pages

Documentation auto-generated from OpenAPI 3.1 specification. Updated on every API release via CI/CD pipeline.

Innovative Portal Features

Beyond standard documentation — features that accelerate developer adoption and reduce time-to-first-call.

AI-Powered API Explorer

Natural language queries to find endpoints, generate code, and understand API behaviour. Ask 'How do I create a payment to a UK bank account?' and get a working code snippet instantly.

Developer Experience Score

Real-time DX scoring that detects friction points — high error rates on specific endpoints, slow onboarding flows, or confusing documentation sections — and suggests improvements.

Interactive Tutorials

Step-by-step guided workflows that walk developers through common integration patterns: first payment, KYC onboarding, webhook setup, and card issuance.