78 Gold-Standard APIs.
6 Banking Domains. 1 Platform.

A complete API surface designed to the quality standard of Stripe and Revolut — resource-oriented, idempotent, versioned, and event-driven. Delivered incrementally on Tyk Enterprise.

API Endpoints78

Webhook Events38

API Domains6

Uptime SLA99.99%

The Four Pillars

Incremental Delivery — 32 Weeks

Integration Bridge

Phase 1 · Weeks 1-8

78 gold-standard REST APIs across 6 banking domains — translating between modern consumers and legacy backends.

Sandbox Portal

Phase 2 · Weeks 9-16

Self-service sandbox with stateful synthetic data. Developers build and test across all domains without touching live systems.

Developer Portal

Phase 3 · Weeks 17-24

Comprehensive documentation, 8 auto-generated SDKs, AsyncAPI event specs, and real-time observability dashboards.

Marketplace

Phase 4 · Weeks 25-32

Third-party services ecosystem. Usage-based billing, revenue sharing via Stripe Connect, and provider self-onboarding.

12 Gold-Standard Design Principles

Applied consistently across every endpoint. Inspired by Stripe and Revolut.

Resource-Oriented

Every entity is a noun. URLs follow /v1/{resource}/{id}. No verbs in paths.

Date-Based Versioning

Header Monument-Version: 2026-02-01. Pinned per API key. 12-month sunset.

Idempotency

Every POST accepts Idempotency-Key header. Safe retries for 24 hours.

Cursor Pagination

All list endpoints return { data, has_more, next_cursor }. Default: 25, max: 100.

Expandable Objects

?expand[]=customer inlines related resources to reduce round-trips.

Metadata

Every object supports arbitrary metadata: { key: value } (up to 50 keys).

Consistent Errors

{ error: { type, code, message, param, request_id } }. Machine-readable types.

Webhook Events

Every state change emits a typed event. Signed with HMAC-SHA256.

Test/Live Modes

Separate key prefixes: mk_test_ / mk_live_. Sandbox uses test keys only.

Rate Limiting

Response headers: X-RateLimit-Limit, Remaining, Reset. Default: 1,000 req/min.

Request IDs

Every response includes X-Request-Id for traceability and support.

HATEOAS Links

Optional _links object for discoverability of related actions.