APIs & Integrations

APIs that connect what you already run.

Well-designed REST and GraphQL APIs, third-party integrations, and event pipelines that make your systems work as one.

What we offer

Scope and deliverables.

REST

Type-safe, standardized REST APIs built using OpenAPI/Swagger schemas and clean controller logic.

GraphQL

Flexible query structures, single-endpoint data fetching, and unified graph layers.

Payment APIs

Secure billing, payout, and escrow flows integrating Stripe, PayPal, or specialized merchant gateways.

CRM Integrations

Continuous bi-directional data syncing between Salesforce, HubSpot, or custom CRM platforms.

ERP Integrations

Enterprise resource connectors feeding transaction and stock data directly to SAP, NetSuite, or Odoo.

Third-party APIs

Custom middleware connections linking shipping providers, notification hubs, and financial services.

Business impact

What you get out of it.

Unlocks the systems you already own

Get more value from the CRMs, ERPs, and databases you've paid for — without ripping them out.

Cuts manual work

Data that used to move on spreadsheets moves through automation instead.

Ready for developers

Clean, documented APIs partners and integrators can actually adopt.

Reliable in production

Retries, idempotency, and observability designed in — not bolted on after the first outage.

Our approach

How the engagement runs.

Our ProcessIterative Lifecycle

Contract design

We agree on endpoints, schemas, and error semantics before writing code.

Structured MilestoneContinuous Verification
Technologies

Working stack.

A curated set of tools we've shipped to production — no experiments on your dime.

  • Node.jsNode.js
  • Express.jsExpress.js
  • TypeScriptTypeScript
  • PythonPython
  • GraphQLGraphQL
  • RESTREST
  • OpenAPIOpenAPI
  • PostgreSQLPostgreSQL
  • KafkaApache Kafka
  • RabbitMQRabbitMQ
  • RedisRedis
Use cases

Who this is for.

  • Launching a public API for your product
  • Connecting Salesforce, HubSpot, or your ERP to internal systems
  • Migrating from a monolith to service boundaries
  • Building event-driven workflows across teams
  • Standing up a partner integration layer
Why Bytelink

Why teams choose us for this work.

We design contracts, not just endpoints

APIs your consumers can build against confidently for years.

Deep integration experience

We've seen the sharp edges of the major B2B systems firsthand.

Observability from day one

Metrics, tracing, and structured logs baked into every service we ship.

Security posture, not lip service

We treat auth, rate limits, and secret handling as core requirements.

FAQ

Common questions.

Have other concerns? Feel free to contact our technical team directly.

COMPLIMENTARY TECHNICAL SESSION

Stuck with slow APIs or scaling bottlenecks?

Book a 30-minute architecture review with our senior team. We will analyze your system bottlenecks, cloud infrastructure, or codebase health with zero sales pitch.

  • Identify API & query latency bottlenecks
  • Cloud infrastructure & spend optimization check
  • Scalability & security best-practices breakdown
architecture_audit.ts
// Live Diagnostic Session
async function runSystemAudit() {
  const metrics = await analyzeCodebase({
    apiLatency: "P99 > 850ms (Bottleneck detected)",
    cloudCosts: "Over-provisioned idle clusters",
    securityIndex: "Passes SOC2 core baseline"
  });

  return {
    recommendation: "Refactor DB queries & Redis cache",
    potentialSavings: "~35% Infrastructure cost cut"
  };
}