APIs that
Scale Partnerships.

Move beyond “endpoint sprawl.” We engineer contract-first API ecosystems with secure gateways, event-driven integrations, and production observability—so internal teams and partners ship faster with fewer incidents.

Request Scoping

Contract-First

Security Policies

Event Integrations

API Platforms Trusted Across Teams & Partners

3.1x
Faster Partner Onboarding

Contracts + portals reduce integration friction.

42ms
p95 Gateway Latency

Edge routing + caching + policy acceleration.

99.95%
Reliability Target

SLIs/SLOs + circuit breakers + retries.

0%
Spec Ambiguity

OpenAPI + governance + change discipline.

Beyond the Endpoint Dump.
Ecosystems, Not Interfaces.

Most API programs fail because teams ship endpoints without contracts, versioning, policy enforcement, and observability. We build platforms that partners trust—on Day 2.

The Integration Failure Pattern

What most “build teams” ship:

  • No Contract Discipline

    Undocumented behavior, breaking changes, and partner churn.

  • Security as a Patch

    Auth glued per-service; inconsistent policies and audit gaps.

  • Zero Observability

    No traceability, no SLOs, no incident root-cause visibility.

The Coretus API Standard

Production-grade ecosystems:

  • Contract-First + Versioning

    OpenAPI specs, compatibility checks, and disciplined change rollout.

  • Gateway + Policy Enforcement

    OAuth2/mTLS, rate limits, quotas, WAF rules, and consistent security posture.

  • Telemetry + Reliability Patterns

    Tracing, SLOs, circuit breakers, retries, and incident-ready dashboards.

Less Breakage. More Adoption.

Strategic Capabilities.

Moving from Endpoints to Ecosystem Leverage.

Contract-First API Design

OpenAPI-first design, linting, compatibility rules, and testable behavioral contracts.

  • OpenAPI + Examples
  • Compatibility Gates

API Gateway + Routing

Unified ingress with rate limits, auth enforcement, caching, and traffic shaping.

  • Quotas + Policies
  • Traffic Shaping

Security + Identity

OAuth2/OIDC, mTLS, signed webhooks, scopes, and audit-ready controls.

  • OIDC Scopes
  • Signed Webhooks

Event-Driven Integrations

Webhooks, queues, streams, idempotency, and delivery guarantees for real-world workflows.

  • Retries + DLQs
  • Idempotency Keys

Developer Experience

Portal, SDKs, docs, environments, and onboarding paths partners actually complete.

  • SDKs + Samples
  • Partner Sandbox

Observability + SLAs

Tracing, metrics, logs, alerts, and SLOs mapped to business-critical integrations.

  • Dashboards
  • SLO Error Budgets
/// API Platform Stack

Hardened API Layer for
Ecosystem Growth.

Contracts + Versioning

Compatibility

OpenAPI specs, examples, consumer-driven checks, and compatibility gates to stop breaking changes.

Spec Linting + CI Gates
Deprecation Policy
Backward Compatibility Checks
OpenAPISemVerContracts

Security + Policy

Access Control

OAuth2/OIDC, mTLS, scopes, quotas, and centralized enforcement so every service follows the same rules.

OAuth2 / OIDC Scopes
mTLS + Signed Webhooks
Rate Limits + Quotas
GatewayWAFPolicies

Integrations + Events

Delivery Guarantees

Webhooks, queues, streams, idempotency, and replay strategies that survive real-world failures.

Idempotency + Retries
DLQs + Backoff
Event Schemas + Consumers
WebhooksStreamsQueues

Observability

SLOs + Tracing

Distributed tracing, dashboards, alerts, and error budgets so reliability becomes measurable and repeatable.

Tracing Across Services
SLO Error Budgets
Incident-Ready Dashboards
TracesSLOsAlerts
/// Integration Accelerator

Ship Integrations.
Skip the Incidents.

We deploy the Coretus API Kernel™—a pre-hardened foundation for contract discipline, gateway enforcement, event delivery guarantees, and observability.

Your teams focus on product velocity and partner adoption, not rebuilding platform plumbing.

4-7 Wk

Platform Baseline Saved

30-55%

Incident Reduction

Built for audit trails, policy enforcement, and backward-compatible evolution.
Policy Hardened

Your Integration Reality

Partners • Teams • Changes • Incidents

Coretus API Kernel v3.1

Contracts

  • • OpenAPI
  • • SemVer

Gateway

  • • Policy
  • • Quotas

Events

  • • Retries
  • • DLQ

Telemetry

  • • SLOs
  • • Tracing
/// Pre-Configured Platform Pods

Deploy Production-Ready API Squads.

Integrated delivery units specialized in API platform engineering, integration reliability, and ecosystem governance—so you scale adoption without scaling incidents.

API Platform Architect

Designs the ecosystem: contracts, versioning strategy, gateway topology, and developer experience.

ContractsVersioningDX

Integration Engineer

Builds real-world integrations: webhooks, events, retries, idempotency, and delivery guarantees.

EventsRetriesIdempotency
0.2%
Error Budget Target
Production Validation Included

Squads arrive with gateways, policies, observability, and integration runbooks—built-in from day one.

Security & IAM Lead

Unifies auth and policies: OAuth2/OIDC, mTLS, scopes, quotas, and auditability.

OIDCmTLSPolicies

API Ops Lead

Observability, SLOs, tracing, incident response, and reliability patterns for ecosystem uptime.

TracingSLOsRunbooks
/// Architectural Integrity

The API Blueprint.

API ecosystems are pipelines: contracts, gateway enforcement, integrations, telemetry, and safe evolution—built to survive partner scale.

01. Consumers

Internal apps, partners, and services integrating with consistent contracts.

Tech Stack:
SDKs • Portal • Sandbox

02. Gateway Layer

Auth, routing, quotas, caching, and policy enforcement at the edge.

Tech Stack:
OAuth2 • Rate Limits • WAF

03. Asynchronous Integration Fabric

Events, webhooks, adapters, idempotency, and delivery guarantees.

Tech Stack:
Retries • DLQ • Replay
Reliability

04. Telemetry + Governance

Tracing, SLOs, audit logs, and controlled evolution with deprecation paths.

Tech Stack:
Tracing • SLOs • Audit Logs
Policy Enforced
Gateway-First
Partner Ready
/// Delivery Framework

The Road to API Adoption.

A phased model that prevents breakage: contracts, policy, integration fabric, then scale safely.

Phase 01

Ecosystem Audit

Map consumers, partners, auth needs, SLIs/SLOs, and contract maturity for production.

Output: API Platform Blueprint
Phase 02

Contract + Portal Build

Define OpenAPI contracts, docs, SDKs, sandboxes, and compatibility gates in CI.

Output: Contract-First Baseline
Phase 03

Gateway + Integration Fabric

Implement policy enforcement, event delivery guarantees, retries/DLQs, and runbooks.

Output: Production Integration Layer
Phase 04

Observe, Evolve, Scale

Tracing, SLOs, dashboards, deprecation paths, and controlled partner expansion.

Output: Reliable Ecosystem at Scale
/// Performance Validation

Proven API Outcomes.

Platform Case Archives
58%
Incidents Reduced

Unified Gateway + Policy
for Multi-Team Platform

Teams shipped breaking changes with inconsistent auth and no visibility across consumers.

Implemented contract-first CI gates, centralized gateway policies, and tracing with SLOs.

"We stopped firefighting integration breaks—compatibility gates and dashboards made it predictable."

AP
Platform Lead
SaaS Company
2.7x
Partner Velocity

Partner Ecosystem
with Portal + Webhooks

Integrations stalled due to missing docs, inconsistent payloads, and unreliable webhook delivery.

Shipped developer portal + sandbox and hardened event delivery with idempotency and retries.

"Partners integrated in days, not weeks—contracts and delivery guarantees changed everything."

DX
Ecosystem Manager
B2B Platform
/// Delivery Models

API Partnership Models.

Choose the engagement aligned with platform maturity, partner velocity, and governance ownership.

Fast Deployment

Managed Platform Squads

Embedded team specialized in API platform engineering, integrations, reliability, and governance.

Velocity & Reliability
SQUAD SPECS
Strategic Advisory

Fractional Platform CTO

Define your API strategy, governance model, partner onboarding flow, and reliability targets.

Strategy & Architecture
EXPLORE ADVISORY
Build-Operate-Transfer

Build-Operate-Transfer

We incubate your API platform, run it in production, then transfer ownership to your teams.

Platform Ownership
VIEW BOT MODEL
Scale Delivery

Platform ODC

Your dedicated API + integration delivery center for ongoing ecosystem expansion and reliability.

Operational Scale
EXPLORE ODC
/// Trust & Controls

Governed
API Evolution.

Ecosystems must balance speed with compatibility. We embed governance, policy, and observability so integrations stay stable as your platform grows.

Compatibility + Deprecation Gates

CI checks, versioning rules, and safe rollout paths to protect consumers.

Policy Enforcement by Default

OAuth2/OIDC, mTLS, quotas, and centralized governance for every API.

Audit Trails + Observability

Tracing, logs, SLOs, and auditability so reliability is measurable.

Audit Logs

Traceable Calls

Policies

Central Rules

DX

Portal + SDKs

Telemetry

SLO Dashboards

/// Platform Briefing

See the API Ecosystem Stack.

A 100-second breakdown of contract-first design, gateway enforcement, event reliability, and observability.

Coretus API Ecosystem & Integrations Briefing
Platform Lead
Principal Engineer
API Platform Lead
01:40 • PLATFORM MODE

Contracts

OpenAPI specs that prevent breakage.

Gateway

Policy enforcement + routing + quotas.

Telemetry

Tracing + SLOs + incident visibility.

/// API FAQs

Frequently Asked
Platform Specs.

Service Identity
API Ecosystems & Integrations

How do you prevent breaking changes?

Contract-first OpenAPI, compatibility checks in CI, and explicit deprecation/versioning policies.

Security across multiple services?

Central gateway enforcement with OAuth2/OIDC, mTLS, scopes, quotas, and audit-ready controls.

Reliable webhooks and events?

Retries, idempotency keys, DLQs, signature verification, and replay strategies for delivery guarantees.

How do you measure reliability?

Tracing, SLIs/SLOs, dashboards, alerting, and error budgets tied to critical partner flows.

Developer portal + SDKs?

Yes—docs, SDKs, samples, sandbox environments, and onboarding paths optimized for completion.

API Ecosystem Audit?

We can deliver a 48-hour audit covering contracts, gateway controls, integration reliability, and SLO readiness.

Request Platform Briefing

Institutionalize Your API Connectivity.

Stop shipping brittle integrations. Build a governed API ecosystem with contract-first design, secure gateways, versioning discipline, and telemetry—so every internal team and partner integrates faster with fewer incidents.

Contract-First + Versioning

OAuth2 / mTLS / Policy Enforcement

100% Platform & Spec Ownership

Request API Platform BriefingRequest API Platform Briefing