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API Gateway Setup · London

API Gateway Setup in London

Putting a gateway in front of a London organisation's APIs to handle authentication, rate limiting, routing and monitoring in one place. The argument for it is straightforward: these concerns get implemented inconsistently in every service otherwise, and inconsistent authentication is how gaps appear.

Why this comes up

The problem

Several services each implement their own authentication and rate limiting, slightly differently. Nobody has a single view of who is calling what, and a new consumer means changes in multiple places.

What you get

What we deliver

  • Authentication and authorisation enforced once at the edge, consistently
  • Rate limiting and quotas per consumer, so one client cannot exhaust capacity
  • Routing and versioning, letting backends change without breaking consumers
  • Request and response logging, giving one place to answer who called what
  • Caching where responses allow it, which often removes most backend load
  • Sensible failure behaviour — timeouts and circuit breaking rather than cascading stalls

Want this scoped for your business in London?

Thirty minutes, no charge, no sales script. You leave with a written summary of what api gateway setup would actually involve — whether or not you use us.

Book a 30-minute call

Working in London

London

London clients usually come to us because they want senior people actually on their project rather than a large agency's B team, and because Midlands rates buy considerably more delivery per pound.

Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates.

Sectors we work with in London

  • Financial Services
  • Professional Services
  • Technology
  • Media
  • Hospitality
  • Retail

What we work with

Technologies and platforms

  • AWS API Gateway
  • Kong
  • Azure API Management
  • Terraform
  • Nginx

Who we work with

Industries we serve

  • SaaS platforms
  • Financial services
  • Retail
  • Healthcare
  • Logistics

Why us

Why London businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

API Gateway Setup in London — common questions

Do we need a gateway with only a few services?
Not necessarily. With one or two services and a handful of consumers, a gateway adds a component to operate for limited benefit. It earns its place as services and consumers multiply, or when you need per-consumer quotas and central auditing.
What is the risk of putting one in?
It becomes a single point of failure and, if misconfigured, a single point of exposure. It needs the same operational care as the services behind it — high availability, monitoring, and configuration in version control rather than edited in a console.
Should the gateway do transformation?
Lightly, if at all. Gateways that reshape payloads and embed business logic become an undocumented application nobody owns. Keep transformation minimal and business rules in the services, or the gateway turns into the integration layer nobody can safely change.
Does it help with security?
It centralises authentication, rate limiting and TLS termination, which removes a class of inconsistency. It does not replace securing the services themselves — a gateway bypassed by internal traffic protects nothing on that path.
Do you work with businesses across Greater London?
Yes. We are based in Leicester, United Kingdom and work with clients throughout London, including London and the surrounding Greater London area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of London businesses do you usually work with?
Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates. Beyond that we work across Financial Services, Professional Services, Technology, Media, Hospitality and Retail.
Do you cover the areas around London?
Yes — we work throughout London, including Reading, Milton Keynes, Cambridge, Brighton. London is an urban area of roughly 9,000,000+, and we take on work across the wider Greater London region rather than the city boundary alone.

Talk to us about API Gateway Setup in London

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom