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API development

APIs your partners, your products, and your AI agents can rely on.

REST, GraphQL, gRPC, and event-driven APIs designed with contracts, governance, and developer experience first.

  • Contract-first design
  • Versioning and deprecation that works
  • Developer portal, SDKs, sandboxes
  • AI-agent-friendly
Overview

APIs as long-lived product surfaces.

APIs outlive UIs. We design them like products — contracts, governance, SDKs, sandboxes, and observability — so your partners, internal teams, and AI agents can build on them with confidence.

Business benefits

Outcomes you can measure on the balance sheet.

  • Faster integrations

    Clear contracts, SDKs, and sandboxes cut partner onboarding from months to days.

  • Lower change cost

    Versioning, deprecation, and contract tests make change safe for consumers.

  • Monetizable

    Plans, quotas, billing, and analytics make APIs revenue lines, not cost centers.

  • AI-ready

    Typed, well-described APIs become the backbone for agentic workflows.

  • Security baseline

    OAuth 2.1, mTLS, JWT, scopes, and rate limits designed in from day one.

  • Operationally observable

    Per-consumer SLOs, error budgets, and dashboards keep API health visible.

Key capabilities

Everything you need from a senior delivery partner.

REST & GraphQL

Idiomatic REST and federated GraphQL aligned to your domain model.

gRPC & events

High-throughput service-to-service and event-driven (Kafka, Pulsar, EventBridge) APIs.

Contract-first

OpenAPI, AsyncAPI, and Protobuf as the source of truth, with generated SDKs and tests.

Developer portals

Docs, sandboxes, key management, and analytics through Backstage, Stoplight, or Apigee.

API security

OAuth 2.1, scopes, mTLS, signing, and threat protection at the gateway.

Observability

Per-consumer SLOs, anomaly detection, and detailed traces across the call graph.

Our process

A predictable path from discovery to operate.

  1. 01

    Design

    Domain model, API style guide, and contract-first OpenAPI / AsyncAPI specs.

    • Style guide
    • Specs
  2. 02

    Build

    Implementation, contract tests, SDK generation, and CI quality gates.

    • Endpoints
    • SDKs
  3. 03

    Publish

    Developer portal, sandboxes, and partner onboarding flow live.

    • Portal
    • Sandbox
  4. 04

    Govern

    Versioning, deprecation, security review, and lifecycle policies.

    • Policies
    • Lifecycle plan
  5. 05

    Operate

    Observability, SLOs, and incident response with consumer-facing status.

    • Dashboards
    • Status page
Technology stack

A modern toolbox, matched to your constraints.

Protocols

  • REST
  • GraphQL
  • gRPC
  • WebSockets
  • Webhooks

Gateways

  • Kong
  • Apigee
  • AWS API Gateway
  • Azure APIM

Streaming

  • Kafka
  • Pulsar
  • EventBridge
  • NATS

Tooling

  • OpenAPI
  • AsyncAPI
  • Protobuf
  • Stoplight
  • Backstage

Security

  • OAuth 2.1
  • OIDC
  • mTLS
  • JWT
Industries

Sectors where we ship this service every quarter.

Education

Learning platforms, admissions workflows, faculty tools, and student-facing portals.

Healthcare

Patient portals, clinical workflows, and decision support built around privacy and uptime.

Finance & FinTech

Core banking, payments, KYC, risk, and embedded finance with strict security baselines.

Retail & E-commerce

Storefronts, marketplaces, fulfillment integrations, and AI personalization.

Logistics

Ops dashboards, IoT telemetry, route optimization, and warehouse automation.

Enterprise & SaaS

Internal platforms, partner portals, and multi-tenant SaaS products at scale.

Why HIGAET

The combination most agencies can't credibly offer.

Senior squads, low churn

We staff with engineers trained through the HIGAET Academy talent pipeline — no rotating juniors.

Product-minded delivery

Squads obsess over user outcomes and KPIs, not just ticket throughput or hours billed.

Enterprise governance

NDAs, IP assignment, audit logs, and SOC 2-aligned controls on every engagement.

Full-stack capability

Strategy, design, engineering, AI, data, and SRE — one accountable team, not a chain of vendors.

AI in the DNA

Every project considers where intelligent automation creates leverage for users and operators.

Skin in the game

We co-build with select partners, sharing both delivery risk and long-term upside.

FAQ

Questions enterprise buyers usually ask.

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HIGAET Technologies

Build APIs as a product — with HIGAET.

Tell us about your API estate. We'll respond with a design and platform plan.